subject:(Plants)

Nelson Mandela Metropolitan University

1. Latolla, Nehemiah Solomon. The investigation of chemical variation in the stems and rhizomes of cissampelos capensis l. f. (menispermaceae) the Eastern Cape medicinal plant.

Degree: Faculty of Science, 2017, Nelson Mandela Metropolitan University

URL: http://hdl.handle.net/10948/13970

► Cissampelos capensis L. f. (Menispermaceae) commonly known as “Mayisake” (Xhosa) and “Dawidjieswortel” (Afrikaans) is the most commonly used medicinal plant of the Menispermaceae family in… (more)

▼ Cissampelos capensis L. f. (Menispermaceae) commonly known as “Mayisake” (Xhosa) and “Dawidjieswortel” (Afrikaans) is the most commonly used medicinal plant of the Menispermaceae family in South Africa. The rhizomes of Cissampelos capensis are the most used part of the plant to treat illnesses. This poses a threat to the ongoing conservation of this valuable endemic species. Thus, we studied the chemical variation and subsequently the bioactivity in the stems and rhizomes of Cissampelos capensis, the Eastern Cape medicinal plant, to suggest the possible use of the stems for medicinal purposes. We studied the variation in the chemical composition in the stems and the rhizomes by employing four different extraction methods; the methanolic-, non-polar-, alkaloidal- and Total Tertiary Alkaloidal (TTA) to extract compounds from Cissampelos capensis. Employing various chromatographic techniques, HPLC, NMR and LC/MS to investigate the chemical variation and the in vitro assays for the crude materials of the stems and rhizomes of Cissampelos capensis. We successfully documented a library of the phytochemicals content in Cissampelos capensis from three different regions in the Eastern Cape. We could profile different extraction methods, with the TTA extraction delivering the best comparative profile. Employing LC/MS and HPLC we identified eleven known alkaloidal compounds in the stems and rhizomes. We also isolated a known alkaloid, pronuciferine, from the TTA extract and a crystal structure of proto-quericitol from the methanolic extract, which was isolated for the first time from Cissampelos capensis. Preliminary in vitro results suggested anti-inflammatory activity in the methanolic extracts of the stems and rhizomes, while the TTA extracts showed some cytotoxicity. Finally, through analytical HPLC analysis this study found as high as 31% similarity between the chemical variation of the stems and rhizomes, but key alkaloids were not always present, indicating more work is needed before the stems can be recommended as a replacement for the rhizomes.

Subjects/Keywords: Plants – Composition; Medicinal plants; Endemic plants

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APA (6^th Edition):

Latolla, N. S. (2017). The investigation of chemical variation in the stems and rhizomes of cissampelos capensis l. f. (menispermaceae) the Eastern Cape medicinal plant. (Thesis). Nelson Mandela Metropolitan University. Retrieved from http://hdl.handle.net/10948/13970

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Latolla, Nehemiah Solomon. “The investigation of chemical variation in the stems and rhizomes of cissampelos capensis l. f. (menispermaceae) the Eastern Cape medicinal plant.” 2017. Thesis, Nelson Mandela Metropolitan University. Accessed February 28, 2020. http://hdl.handle.net/10948/13970.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Latolla, Nehemiah Solomon. “The investigation of chemical variation in the stems and rhizomes of cissampelos capensis l. f. (menispermaceae) the Eastern Cape medicinal plant.” 2017. Web. 28 Feb 2020.

Vancouver:

Latolla NS. The investigation of chemical variation in the stems and rhizomes of cissampelos capensis l. f. (menispermaceae) the Eastern Cape medicinal plant. [Internet] [Thesis]. Nelson Mandela Metropolitan University; 2017. [cited 2020 Feb 28]. Available from: http://hdl.handle.net/10948/13970.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Latolla NS. The investigation of chemical variation in the stems and rhizomes of cissampelos capensis l. f. (menispermaceae) the Eastern Cape medicinal plant. [Thesis]. Nelson Mandela Metropolitan University; 2017. Available from: http://hdl.handle.net/10948/13970

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Zambia

2. Mabengwa, Mutumpike. Growth responses of Tomato (Lycopersicon Esculentum Mill)to different growing media under Greenhouse and field conditions .

Degree: 2013, University of Zambia

URL: http://hdl.handle.net/123456789/2966

► Green houses provide opportunity for year round crop production. Although tomatoes are an option for utilizing greenhouse space, performance of tomato under these conditions has… (more)

▼ Green houses provide opportunity for year round crop production. Although tomatoes are an option for utilizing greenhouse space, performance of tomato under these conditions has potential limitations which may include root restriction and its attendant impacts such as artificial media effects on varietal characteristics. Decline in profitability of rose production for which greenhouses in Zambia were used has left excess capacity. Tomatoes provide a profitable option for farmers. A study was conducted was to evaluate growth responses of tomato grown in different growing media under controlled environment (greenhouse) and Field conditions of three tomato varieties (Star 9030, Tengeru and Rodade) under different growing media (Peat in sleeve, Coccus in sleeve, Coccus in trough, Soil in sleeve and Soil bed). The experiment was conducted at the Natural Resources Development College in Lusaka between May to October 2011. Two experiments were carried out; the first one was a Greenhouse study under an open sided naturally ventilated Plastic greenhouse. The experimental design adopted was a Split plot design where, varieties were assigned to the main plots and the media to subplots. The field experiment involved the same varieties planted directly into the soil but used a Randomized Complete Block Design. The parameters measured included vegetative variates i.e. plant height and root/ canopy ratio; reproductive variates were; total fruit number per plant and total yield. Fruits were harvested at breaker stage when the skin colour was 30% pink red. Fruit quality parameters including shape (indicated by the ratio of fruit diameter to height) and Brix (Total soluble solutes content). The results from the study showed that: In the greenhouse Star 9030 grown in soil bed grew taller than the other 2 varieties. The trend of these results was significant from 4 weeks after transplanting. The total fruit number and weight of Star 9030 grown in soil bed (29 and 19.5t/ha) was significantly higher than Rodade (14 and 8t/ha) and Tengeru (24 and 15t/ha) compared to other media (p ≤ 0.001), whilst the root: shoot ratio was not significant different among the cultivars and media. The total soluble solid content expressed as Brix was significantly different between varieties, Tengeru with 5.0 was highest followed by Star 9030 with 4.0, Rodade with 3.5. ). Fruit diameter: height ratio was not different between Rodade and Tengeru but significantly lower than Star 9030 whilst the effect of media showed no significant differences. In comparison to the greenhouse results, the field experiment performance was as follows; the mean fruit weight was; Star 9030 (12 t/ha), Rodade (5 t/ha) and Tengeru (10 t/ha) whilst total soluble content at 4.7 for Star 9030, 3.5 for Rodade and 3.7 for Tengeru was not significantly different among the different varieties .

Subjects/Keywords: Tomatoes; Plants(Analysis); Growth(Plants)

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APA (6^th Edition):

Mabengwa, M. (2013). Growth responses of Tomato (Lycopersicon Esculentum Mill)to different growing media under Greenhouse and field conditions . (Thesis). University of Zambia. Retrieved from http://hdl.handle.net/123456789/2966

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mabengwa, Mutumpike. “Growth responses of Tomato (Lycopersicon Esculentum Mill)to different growing media under Greenhouse and field conditions .” 2013. Thesis, University of Zambia. Accessed February 28, 2020. http://hdl.handle.net/123456789/2966.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mabengwa, Mutumpike. “Growth responses of Tomato (Lycopersicon Esculentum Mill)to different growing media under Greenhouse and field conditions .” 2013. Web. 28 Feb 2020.

Vancouver:

Mabengwa M. Growth responses of Tomato (Lycopersicon Esculentum Mill)to different growing media under Greenhouse and field conditions . [Internet] [Thesis]. University of Zambia; 2013. [cited 2020 Feb 28]. Available from: http://hdl.handle.net/123456789/2966.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mabengwa M. Growth responses of Tomato (Lycopersicon Esculentum Mill)to different growing media under Greenhouse and field conditions . [Thesis]. University of Zambia; 2013. Available from: http://hdl.handle.net/123456789/2966

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Namibia

3. Katjirua Joyce. The distribution, abundance and reproductive status of the invasive alien plant, Datura Innoxia Mill., in the city of Windhoek, Namibia .

Degree: 2008, University of Namibia

URL: http://hdl.handle.net/11070/395

► Abstract provided by author; Invasive alien species (IAS) are non-native species that cause, or have the potential to cause, harm to the environment, economies, or… (more)

▼ Abstract provided by author; Invasive alien species (IAS) are non-native species that cause, or have the potential to cause, harm to the environment, economies, or human health. The threat to biodiversity due to invasive alien species is considered second to that of habitat loss. The focus of the study was on one of the invasive alien plant Datura innoxia. The study was conducted in the City of Windhoek, the capital of Namibia, situated at 22.56°S, 17.09°E; The aim of the research project was to study the distribution, abundance and reproductive status of the invasive alien D. innoxia in the City of Windhoek. The information gathered will contribute to the knowledge and understanding of weedy invasive aliens in the City; Data was collected 121,25 0000 m2 grids that were randomly sampled in the City. The City of Windhoek grided map was used to locate the specific grids. The grids were sub-divided into sixteen 15625 m2 plots to ease observations. In each plot, all D. innoxia were recorded including their height, crown width, number of capsules and number of flowers. Within a radius of one-meter, other organisms and plants associated with D. innoxia were also recorded. The presence and absence of other plant species found in the plots were recorded. ArcView 3.2 was used to develop the distribution map and SPSS 15 was used to analyze the data; The study revealed that D. innoxia is widely distributed along riverbanks, disturbed areas and around human settlement. A high infestation of D. innoxia was observed in the drainage lines and within the built-up areas. The occurrence of D. innoxia is influenced by the different types of activities and is associated with disturbances. The study also showed that D. innoxia is a perennial trailing or bushy herb plant with a continuous floral development with no significant difference (?2F (3) = 7, p0.05) in the number of D. innoxia in the different reproductive status within the geo-morphological landforms. However, there was a significant difference (?2F (2) = 5, p0.05) in the number of D. innoxia with the construction and no construction area and within the open spaces and built-up areas. Therefore, D. innoxia is a cosmopolitan opportunistic weed that is abundant in construction areas, drainage lines and around human settlements; The Hierarchical Cluster Analysis revealed that Acacia mellifera, Dichrostachys cinerea, Boscia albitrunca and Senecio windhoekensis were the dominant woody and herbaceous vegetation in all the clusters. The Cityof Windhoek is situated in the highland savanna vegetation, all the dominant species characterizing the highland savanna were present. Variation within the vegetation composition was attributed to the different land uses within the City of Windhoek and not to the presence of D. innoxia. Advisors/Committee Members: Mfune J.K (advisor), Mapaure I (advisor).

Subjects/Keywords: Invasive plants ; Alien plants

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Joyce, K. (2008). The distribution, abundance and reproductive status of the invasive alien plant, Datura Innoxia Mill., in the city of Windhoek, Namibia . (Thesis). University of Namibia. Retrieved from http://hdl.handle.net/11070/395

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Joyce, Katjirua. “The distribution, abundance and reproductive status of the invasive alien plant, Datura Innoxia Mill., in the city of Windhoek, Namibia .” 2008. Thesis, University of Namibia. Accessed February 28, 2020. http://hdl.handle.net/11070/395.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Joyce, Katjirua. “The distribution, abundance and reproductive status of the invasive alien plant, Datura Innoxia Mill., in the city of Windhoek, Namibia .” 2008. Web. 28 Feb 2020.

Vancouver:

Joyce K. The distribution, abundance and reproductive status of the invasive alien plant, Datura Innoxia Mill., in the city of Windhoek, Namibia . [Internet] [Thesis]. University of Namibia; 2008. [cited 2020 Feb 28]. Available from: http://hdl.handle.net/11070/395.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Joyce K. The distribution, abundance and reproductive status of the invasive alien plant, Datura Innoxia Mill., in the city of Windhoek, Namibia . [Thesis]. University of Namibia; 2008. Available from: http://hdl.handle.net/11070/395

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Aberdeen

4. Mahmud, Khairil. Distribution and functional significance of Al in tropical forest plants.

Degree: PhD, 2017, University of Aberdeen

URL: http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=235553 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.731649

► The general aim of this thesis was to investigate the mechanisms that determine variation in Al accumulation among tropical woody plants. The focus of the… (more)

▼ The general aim of this thesis was to investigate the mechanisms that determine variation in Al accumulation among tropical woody plants. The focus of the study variation among populations of the well-studied Al accumulator Melastoma malabathricum, but this was coupled with sampling 50 tree species growing on the 50 ha forest dynamics plot at Pasoh Forest Reserve in Peninsular Malaysia in order to gain a perspective on Al accumulation at a community scale. I sampled mature leaves and seeds of M. malabathricum from 20 populations growing in six habitats across Peninsular Malaysia. Concentrations of Al, N, P, K, Ca and Mg were determined in air-dried leaves and the soil from each site. The seeds were used to generate cohorts of seedlings that were grown in hydroponic solutions amended with Al in the form of 1.0 mM AlCl3. Foliar Al concentrations varied significantly among populations, but were not consistently different among plants growing in different habitats and showed no relationship to total or exchangeable Al concentrations in soils collected at the 20 sites. Similarly, foliar Al concentrations in seedlings grown in the presence of Al differed significantly among source populations, but values did not correlate with foliar Al concentrations in wild plants from parent populations. Mean foliar Al concentration in wild plants was positively correlated with foliar Ca concentration, and with total soil Ca and Mg concentrations, across the 20 populations. Furthermore, total dry mass and relative growth rates were significantly greater for seedlings that had received Al in the growth medium than for seedlings that had received no Al. The growth response to Al addition varied among populations of M. malabathricum, and relative growth rate in response to Al addition was greater for populations that accumulated higher foliar Al concentrations. In a further experiment, increasing Al concentrations from In a further experiment, increasing Al concentrations from 0 to 2.0 mM in the nutrient solution increased rates of growth, but growth declined at 5.0 mM Al. The responses to Al addition varied among populations for growth, photosynthesis, respiration, carbon allocation, and foliar P, Ca, and Mg concentrations. The rates of photosynthesis and respiration, and total nonstructural carbohydrate concentrations, were higher for seedlings grown in the presence of 2.0 mM Al in the nutrient solution than in the absence of Al, while lignin concentration in roots decreased. These results suggest that Al addition stimulate growth stimulation by increasing rates of photosynthesis and respiration, resulting in higher non-structural carbohydrate concentrations. Increased allocation of photosynthate to root systems coupled with their lower lignification results in enhanced nutrient uptake (particularly P, Ca and Mg), which contributes to enhanced whole-plant growth. To test the prevalence of Al accumulation at the community scale I sampled 50 tree species growing on the 50 ha Forest Dynamics Plot at Pasoh Forest Reserve in Peninsular…

Subjects/Keywords: 570; Aluminum; Tropical plants; Plants

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APA (6^th Edition):

Mahmud, K. (2017). Distribution and functional significance of Al in tropical forest plants. (Doctoral Dissertation). University of Aberdeen. Retrieved from http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=235553 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.731649

Chicago Manual of Style (16^th Edition):

Mahmud, Khairil. “Distribution and functional significance of Al in tropical forest plants.” 2017. Doctoral Dissertation, University of Aberdeen. Accessed February 28, 2020. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=235553 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.731649.

MLA Handbook (7^th Edition):

Mahmud, Khairil. “Distribution and functional significance of Al in tropical forest plants.” 2017. Web. 28 Feb 2020.

Vancouver:

Mahmud K. Distribution and functional significance of Al in tropical forest plants. [Internet] [Doctoral dissertation]. University of Aberdeen; 2017. [cited 2020 Feb 28]. Available from: http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=235553 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.731649.

Council of Science Editors:

Mahmud K. Distribution and functional significance of Al in tropical forest plants. [Doctoral Dissertation]. University of Aberdeen; 2017. Available from: http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=235553 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.731649

Florida Atlantic University

5. He, Yangqing. Isolation and structure elucidation of new compounds from Cornus Controversa and Delphinium Chrysotrichum.

Degree: 2014, Florida Atlantic University

URL: http://purl.flvc.org/fau/fd/FA00004121

►

Summary: The aim of this dissertation was to explore structurally unique secondary metabolites from herb medicinal plants Cornus controversa and Delphinium chrysotrichum. The introduction in… (more)

▼

Summary: The aim of this dissertation was to explore structurally unique secondary metabolites from herb medicinal plants Cornus controversa and Delphinium chrysotrichum. The introduction in the first chapter provides a detailed review about the research progress of chemical constitutents of the genus Cornus. In addition, its pharmacological activities were also summarized in this chapter to provide a framework for understanding the roles of medicinal herbs belong to genus Cornus as anti-diabetes therapeutics and to deliver useful information for further research. In chapter two, seven new compounds, including one iridoid glucoside, cornoside A (59), five iridoid aglycones, cornolactones A – E (60 – 64) and one indenone glucoside, cornoside B (65), together with 10 known compounds have been isolated from the leaves of Cornus controversa. The structures of these compounds were established by interpretation of spectroscopic data. Cornolactone A (61) is the first natural cis-fused tricyclic dilactone iridoid containing both a five- and six-membered lactone ring. Cornoside B (65) is the first alkaloid isolated from the genus Cornus bearing an indole-3-lactic acid-11--D-glucopyranoside skeleton. In chapter three, we described the structure elucidation of three new diterpenoid alkaloids delphatisine D (77), chrysotrichumines A (78) and B (79), as well as 11 known compounds from the whole plants of Delphinium chrysotrichum. Delphatisine D (77) is a rare atisine-type alkaloid from genus Delphinium and is the C-15 epimer of spiramine C which bears an internal carbinolamine ether linkage (NCOC) between C-7 and C-20. Chrysotrichumine A (78) is a rare natural C19-diterpenoid alkaloid possessing a nitrone group between C-17 and C-19. In addition, their cytotoxic activity against human breast cancer cell lines of MCF-7 and MDA-MB-231 were also reported. In chapter four, the detailed extraction and isolation procedures of the new compounds, cornosides A and B, cornolactones A – E, delphatisine D, chrysotrichumine A and B, as well as of all the known compounds were described. In addition, the experimental procedures for the determination of PPARγ and LXR agonistic activities and the MTT cytotoxicity assay were listed in this chapter.

2014

Degree granted: Dissertation (Ph.D.) – Florida Atlantic University, 2014.

Collection: FAU

Advisors/Committee Members: West, Lyndon (Thesis advisor), Florida Atlantic University (Degree grantor), Charles E. Schmidt College of Science, Department of Chemistry and Biochemistry.

Subjects/Keywords: Medicinal plants.; Delphinium.; Cornus (Plants)

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

He, Y. (2014). Isolation and structure elucidation of new compounds from Cornus Controversa and Delphinium Chrysotrichum. (Thesis). Florida Atlantic University. Retrieved from http://purl.flvc.org/fau/fd/FA00004121

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

He, Yangqing. “Isolation and structure elucidation of new compounds from Cornus Controversa and Delphinium Chrysotrichum.” 2014. Thesis, Florida Atlantic University. Accessed February 28, 2020. http://purl.flvc.org/fau/fd/FA00004121.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

He, Yangqing. “Isolation and structure elucidation of new compounds from Cornus Controversa and Delphinium Chrysotrichum.” 2014. Web. 28 Feb 2020.

Vancouver:

He Y. Isolation and structure elucidation of new compounds from Cornus Controversa and Delphinium Chrysotrichum. [Internet] [Thesis]. Florida Atlantic University; 2014. [cited 2020 Feb 28]. Available from: http://purl.flvc.org/fau/fd/FA00004121.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

He Y. Isolation and structure elucidation of new compounds from Cornus Controversa and Delphinium Chrysotrichum. [Thesis]. Florida Atlantic University; 2014. Available from: http://purl.flvc.org/fau/fd/FA00004121

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Georgia

6. Poythress, Joseph Carlton. Gardening for wildlife: a comparison of native plant cultivars and wild-propagated plants as food sources for herbivorous insects.

Degree: MS, Horticulture, 2015, University of Georgia

URL: http://purl.galileo.usg.edu/uga_etd/poythress_joseph_c_201508_ms

► Concerns over declining biodiversity in suburban areas have prompted some homeowners to incorporate more native plants into their landscapes. However, it is unknown whether the… (more)

Subjects/Keywords: Native plants

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Poythress, J. C. (2015). Gardening for wildlife: a comparison of native plant cultivars and wild-propagated plants as food sources for herbivorous insects. (Masters Thesis). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/poythress_joseph_c_201508_ms

Chicago Manual of Style (16^th Edition):

Poythress, Joseph Carlton. “Gardening for wildlife: a comparison of native plant cultivars and wild-propagated plants as food sources for herbivorous insects.” 2015. Masters Thesis, University of Georgia. Accessed February 28, 2020. http://purl.galileo.usg.edu/uga_etd/poythress_joseph_c_201508_ms.

MLA Handbook (7^th Edition):

Poythress, Joseph Carlton. “Gardening for wildlife: a comparison of native plant cultivars and wild-propagated plants as food sources for herbivorous insects.” 2015. Web. 28 Feb 2020.

Vancouver:

Poythress JC. Gardening for wildlife: a comparison of native plant cultivars and wild-propagated plants as food sources for herbivorous insects. [Internet] [Masters thesis]. University of Georgia; 2015. [cited 2020 Feb 28]. Available from: http://purl.galileo.usg.edu/uga_etd/poythress_joseph_c_201508_ms.

Council of Science Editors:

Poythress JC. Gardening for wildlife: a comparison of native plant cultivars and wild-propagated plants as food sources for herbivorous insects. [Masters Thesis]. University of Georgia; 2015. Available from: http://purl.galileo.usg.edu/uga_etd/poythress_joseph_c_201508_ms

University of Georgia

7. Joost, Pegues. The effects of imidacloprid, plant age and leaf age on the probing and settling behavior of Frankliniella fusca and Frankliniella occidentalis (Thysanoptera: Thripidae) in pre-flowering tomato plants, Lycoperiscon esculentum.

Degree: PhD, Entomology, 2003, University of Georgia

URL: http://purl.galileo.usg.edu/uga_etd/joost_pegues_h_200312_phd

► The effects of tomato plant age, leaf age and imidacloprid on thrips probing and host settling behaviors were investigated for two thrips species, the tobacco… (more)

▼ The effects of tomato plant age, leaf age and imidacloprid on thrips probing and host settling behaviors were investigated for two thrips species, the tobacco thrips, Frankliniella fusca (Hinds) and the western flower thrips, F. occidentalis (Pergande) (Thripidae: Thysanoptera). A preliminary sampling experiment indicated that Frankliniella fusca was the more abundant thrips on pre-flowering tomatoes plants. Both thrips species were present and are important vectors of Tomato spotted wilt virus (TSWV). Plant age and imidacloprid effects were evaluated because previous field studies showed TSWV infection in tomato fields was affected by different plant ages and with imidacloprid treatment. Since thrips mortality has not been associated with these effects, plant age and imidacloprid might affect thrips probing and host selection behavior which ultimately could affect the thrips TSWV transmission efficiency. I used DC electrical penetration graph technique (EPG) to quantify thrips probing behavior. Whole plant bioassays were used in all settling experiments because F. occidentalis preferred leaves of whole plants to excised leaves or leaf discs. Males and female F. fusca probed and ingested more and longer on 3 and 4-week-old plants compared to 6 and 8-week-old plants. Female F. fusca probed and ingested more frequently than males in the plant age experiment but not in the leaf age experiment. Frankliniella fusca probed and ingested more frequently on 2 and 4-week-old leaves compared to 1-week-old leaves. Plant age did not affect the probing frequency or duration of F. occidentalis. Both thrips species preferred to settle on 3-week-old plants. Frankliniella fusca preferred to settle on old, 4-week-old leaves. Frankliniella occidentalis showed no settling preference for leaf ages. As imidacloprid concentrations in leaf tissues increased, F. fusca probing frequency and duration declined while F. occidentalis probing frequency and duration increased. In addition, ingestion frequency and duration declined for F. fusca and increased for F. occidentalis as imidacloprid concentrations increased in the plant tissue. Frankliniella fusca avoids leaves with imidacloprid and settles on untreated leaves, while F. occidentalis settles randomly when offered the choice to settle on imidacloprid and untreated leaves. Advisors/Committee Members: David Riley.

Subjects/Keywords: plants

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Joost, P. (2003). The effects of imidacloprid, plant age and leaf age on the probing and settling behavior of Frankliniella fusca and Frankliniella occidentalis (Thysanoptera: Thripidae) in pre-flowering tomato plants, Lycoperiscon esculentum. (Doctoral Dissertation). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/joost_pegues_h_200312_phd

Chicago Manual of Style (16^th Edition):

Joost, Pegues. “The effects of imidacloprid, plant age and leaf age on the probing and settling behavior of Frankliniella fusca and Frankliniella occidentalis (Thysanoptera: Thripidae) in pre-flowering tomato plants, Lycoperiscon esculentum.” 2003. Doctoral Dissertation, University of Georgia. Accessed February 28, 2020. http://purl.galileo.usg.edu/uga_etd/joost_pegues_h_200312_phd.

MLA Handbook (7^th Edition):

Joost, Pegues. “The effects of imidacloprid, plant age and leaf age on the probing and settling behavior of Frankliniella fusca and Frankliniella occidentalis (Thysanoptera: Thripidae) in pre-flowering tomato plants, Lycoperiscon esculentum.” 2003. Web. 28 Feb 2020.

Vancouver:

Joost P. The effects of imidacloprid, plant age and leaf age on the probing and settling behavior of Frankliniella fusca and Frankliniella occidentalis (Thysanoptera: Thripidae) in pre-flowering tomato plants, Lycoperiscon esculentum. [Internet] [Doctoral dissertation]. University of Georgia; 2003. [cited 2020 Feb 28]. Available from: http://purl.galileo.usg.edu/uga_etd/joost_pegues_h_200312_phd.

Council of Science Editors:

Joost P. The effects of imidacloprid, plant age and leaf age on the probing and settling behavior of Frankliniella fusca and Frankliniella occidentalis (Thysanoptera: Thripidae) in pre-flowering tomato plants, Lycoperiscon esculentum. [Doctoral Dissertation]. University of Georgia; 2003. Available from: http://purl.galileo.usg.edu/uga_etd/joost_pegues_h_200312_phd

Oregon State University

8. Zhu, Ruoqing. Growth, morphology, and in vitro development of transgenic poplars with RNAi-inhibited PtDDM1-1/2 gene expression.

Degree: MS, Forest Science, 2011, Oregon State University

URL: http://hdl.handle.net/1957/24508

► Epigenetic mechanisms are important for control of plant development, and may play a particularly important role in trees given their long life cycles and distinctive… (more)

▼ Epigenetic mechanisms are important for control of plant development, and may play a particularly important role in trees given their long life cycles and distinctive and stable tissue types. To help understand the role of epigenetics in tree development, we produced transgenic poplars with reduced activity of the DDM1 genes, whose activity are known to be critical for the maintenance of DNA methylation in plant genomes. DNA methylation is widely recognized as a major element of epigenetic variation, where its presence is usually associated with loss of gene expression. The DDM1 gene is necessary for the maintenance of DNA methylation in the extensive heterochromatic fractions of the genome. We identified two highly similar DDM1 homologs in poplar (PtDDM1) and used RNAi to suppress both of their transcripts with a single construct. PtDDM- RNAi transgenic poplars showed a wide range of suppression efficiency, with the most strongly suppressed gene insertion events (lines) having a reduction in RNA expression of 70% based on combined stem and leaf in vitro materials and real time RT-PCR. Six transgenic lines were analyzed for their total cellular cytosine DNA methylation by HPLC (High Performance Liquid Chromatography). The DNA methylation percentages were generally correlated with PtDDM1 expression. A greenhouse study identified variation in growth rate associated with events, but these were not associated with PtDDM1 gene expression. There were also no visible differences in morphology of the transgenic lines. However, after dormancy, transgenic trees with strong PtDDM1 suppression that were growing out of doors in a covered "lathouse" showed a severe mottled leaf phenotype in all of its ramets, and two other transgenic events with strong PtDDM1 suppression showed similar but less severe symptoms in some of their ramets. A study of in vitro callogenesis of stem explants showed an inverse correlation between DDM1 expression and the percentage of rapidly growing callus; however, these results were not repeated with leaf explants or in a second experiment with a different experimental design. The second study showed a positive correlation between PtDDM1 expression and callus size. We speculated that the reduced methylation promoted tissue dedifferentiation, redifferentiation, and cell division, and that the mottled leaf phenotype was a result of DNA methylation change in the poplar genome. Our results suggest that transgenic demethylation may be a useful tool for promoting in vitro regeneration, but requires considerably more study of different target genes and suppression methods. Advisors/Committee Members: Strauss, Steven (advisor), Freitag, Michael (committee member).

Subjects/Keywords: Transgenic plants

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Zhu, R. (2011). Growth, morphology, and in vitro development of transgenic poplars with RNAi-inhibited PtDDM1-1/2 gene expression. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/24508

Chicago Manual of Style (16^th Edition):

Zhu, Ruoqing. “Growth, morphology, and in vitro development of transgenic poplars with RNAi-inhibited PtDDM1-1/2 gene expression.” 2011. Masters Thesis, Oregon State University. Accessed February 28, 2020. http://hdl.handle.net/1957/24508.

MLA Handbook (7^th Edition):

Zhu, Ruoqing. “Growth, morphology, and in vitro development of transgenic poplars with RNAi-inhibited PtDDM1-1/2 gene expression.” 2011. Web. 28 Feb 2020.

Vancouver:

Zhu R. Growth, morphology, and in vitro development of transgenic poplars with RNAi-inhibited PtDDM1-1/2 gene expression. [Internet] [Masters thesis]. Oregon State University; 2011. [cited 2020 Feb 28]. Available from: http://hdl.handle.net/1957/24508.

Council of Science Editors:

Zhu R. Growth, morphology, and in vitro development of transgenic poplars with RNAi-inhibited PtDDM1-1/2 gene expression. [Masters Thesis]. Oregon State University; 2011. Available from: http://hdl.handle.net/1957/24508

Nelson Mandela Metropolitan University

9. Schnablegger, Gerald. The anticancer activity of Cyathula prostrata on two malignant cell lines.

Degree: Faculty of Science, 2010, Nelson Mandela Metropolitan University

URL: http://hdl.handle.net/10948/1563

► Plants have always been a source of medicine and are still being used by traditional healers in the rural part of Africa, Asia and India… (more)

▼ Plants have always been a source of medicine and are still being used by traditional healers in the rural part of Africa, Asia and India to treat a range of illnesses including cancer. The in vitro anticancer activity of an 80 percent ethanol extract of Cyathula prostrata, an annual branching shrub used by traditional healers in Nigeria to treat cancer was investigated. No previous studies have outlined the possible pathways and mechanisms used by cancer cells when treated with C. prostrata. Dose response analysis was performed to determine the effective cytotoxic concentrations of C. prostrata on HeLa (cervical cancer cell line) and U937 (myelo-monocytic cell line). The IC50 values were 100.8 μg/ml and 64.4 μg/ml for HeLa and U937 cells, respectively. All further experiments were performed using 125 μg/ml C. prostrata extract and 50 μM cisplatin as positive control. With the use of the fluorescent DNA binding dye propidium iodide, the induction of tumour cell death by C. prostrata extract has been linked to cell cycle arrest in the G1 phase at 24 and 48 h. In both cell lines, more than 80 percent of the C. prostrata treated cells were found in the G1 phase after 48 hours of treatment. The annexin V-FITC/PI assay revealed an increase in the percentage apoptotic cells from 4.9 percent to 53.1 percent at 24 h and 8.3 percent to 50.3 percent at 48 h. Since apoptosis induction can occur via a number of different pathways, distinct features were used as markers to investigate the mode of action of this C. prostrata extract. Markers such as activated caspase-8, p21 and cyt-c, were investigated with the aid of fluorescently labelled (FITC) antibodies with analysis using flow cytometry. No change in p21 levels was observed in response to treatment with the extract for up to 48 h. Cell cycle arrest in G1 was therefore not induced by this cyclin-CDK inhibitor. Increase in caspase-8 activation was observed in response to treatment with the extract with no cyt-c release from the mitochondria. The lack of cyt-c release was due to no change in mitochondrial membrane potential, which was investigated with the aid of fluorescent mitochondrial dyes and flow cytometric techniques. Caspase-8 activation is unique to the extrinsic apoptotic pathway. The results from this study therefore show that C. prostrata extract induces apoptosis via the extrinsic pathway and that this activation in independent of the mitochondria. The levels of hTERT, the catalytic subunit of telomerase, were investigated as an additional molecular target for C. prostrata. This was also investigated using FITC labelled antibodies and flow cytometry. A decrease in hTERT levels was observed following C. prostrata treatment. The findings from this study suggest that the extract acts through multiple targets, by inducing: cell cycle arrest in the G1 phase through an unknown mechanism; apoptosis through an extrinsic death receptor pathway and replicative senescence through inhibition of telomerase.

Subjects/Keywords: Medicinal plants

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Schnablegger, G. (2010). The anticancer activity of Cyathula prostrata on two malignant cell lines. (Thesis). Nelson Mandela Metropolitan University. Retrieved from http://hdl.handle.net/10948/1563

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Schnablegger, Gerald. “The anticancer activity of Cyathula prostrata on two malignant cell lines.” 2010. Thesis, Nelson Mandela Metropolitan University. Accessed February 28, 2020. http://hdl.handle.net/10948/1563.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Schnablegger, Gerald. “The anticancer activity of Cyathula prostrata on two malignant cell lines.” 2010. Web. 28 Feb 2020.

Vancouver:

Schnablegger G. The anticancer activity of Cyathula prostrata on two malignant cell lines. [Internet] [Thesis]. Nelson Mandela Metropolitan University; 2010. [cited 2020 Feb 28]. Available from: http://hdl.handle.net/10948/1563.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Schnablegger G. The anticancer activity of Cyathula prostrata on two malignant cell lines. [Thesis]. Nelson Mandela Metropolitan University; 2010. Available from: http://hdl.handle.net/10948/1563

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Tasmania

10. Jones, Richard Harold. The effect of excess manganese on nitrate assimilation in lettuce.

Degree: 1974, University of Tasmania

URL: https://eprints.utas.edu.au/20059/1/whole_JonesRichardHarold1974_thesis.pdf

► Growth of lettuce may be limited in acid soils by manganese toxicity which may be alleviated by applications of lime, phosphate fertilisers, iron and molybdenum.… (more)

▼ Growth of lettuce may be limited in acid soils by manganese toxicity which may be alleviated by applications of lime, phosphate fertilisers, iron and molybdenum. However few investigations have been undertaken to determine the biochemical effect of excess manganese in plants. The aim of this project was to demonstrate that manganese toxicity could reduce lettuce yield by inhibiting nitrate reductase activity. Manganese toxicity inhibited nitrate reductase activity in lettuce plants grown in an acid krasnozem soil. The yield of affected plants, which was significantly lower than the yield of control plants, was significantly correlated with the decrease in nitrate reductase activity. Associated with the decrease in nitrate reductase activity was an accumulation of nitrate in leaves and a decrease in the total nitrogen content (mgN/plant). Following applications of molybdenum foliar sprays there were significant increases in yield and nitrate reductase activity. The molybdenum content of plants increased in plants which had high tissue levels of manganese. The increase was probably due to the lower yield in these plants. It is not known how molybdenum reverses the manganese inhibition of nitrate reductase. Similar responses were observed in lettuce grown in nutrient solution. The Critical solution concentration of manganese,at which there was a decrease in yield and in nitrate reductase activity, was found to be 36uM. Nitrate reductase activity of young and mature leaves was significantly correlated with leaf manganese levels. Plants grown in nitrate-nitrogen nutrient solutions were more susceptible to manganese toxicity than plants grown in ammonium nitrogen nutrient solutions. A study of the time-course of manganese inhibition of nitrate reductase in vivo (indicated that after a short lag period, manganese significantly decreased nitrate reductase activity. The half life for this decrease in enzyme activity was found to be 2.5 hours. These results indicated that manganese was not inducing molybdenum deficiency and that manganese may have inhibited nitrate reductase by binding to the enzyme. Enzyme kinetic analysis of the manganese inhibition of nitrate reductase (in vitro) showed that manganese was a competitive inhibitor of nitrate reductase with respect to NADH and a non-competitive inhibitor of nitrate reductase with respect to nitrate. These results indicated that manganese was bound to the enzyme at or near the binding site for NADH. When manganese was added to the enzyme before NADH the degree of inhibition was greater than when the NADH was added to the enzyme before manganese. These results also indicated that manganese was interfering with the binding of NADH to the enzyme. EPR studies supported the results obtained with the kinetic analysis of the inhibition of nitrate reductase. Results of the EPR study showed that manganese was not bound by NADH but could be bound by the partially purified enzyme extract.

Subjects/Keywords: Plants

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APA (6^th Edition):

Jones, R. H. (1974). The effect of excess manganese on nitrate assimilation in lettuce. (Thesis). University of Tasmania. Retrieved from https://eprints.utas.edu.au/20059/1/whole_JonesRichardHarold1974_thesis.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Jones, Richard Harold. “The effect of excess manganese on nitrate assimilation in lettuce.” 1974. Thesis, University of Tasmania. Accessed February 28, 2020. https://eprints.utas.edu.au/20059/1/whole_JonesRichardHarold1974_thesis.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Jones, Richard Harold. “The effect of excess manganese on nitrate assimilation in lettuce.” 1974. Web. 28 Feb 2020.

Vancouver:

Jones RH. The effect of excess manganese on nitrate assimilation in lettuce. [Internet] [Thesis]. University of Tasmania; 1974. [cited 2020 Feb 28]. Available from: https://eprints.utas.edu.au/20059/1/whole_JonesRichardHarold1974_thesis.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Jones RH. The effect of excess manganese on nitrate assimilation in lettuce. [Thesis]. University of Tasmania; 1974. Available from: https://eprints.utas.edu.au/20059/1/whole_JonesRichardHarold1974_thesis.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Tasmania

11. Johnstone, GR. Therapy of virus-infected plants by heat treatment.

Degree: 1972, University of Tasmania

URL: https://eprints.utas.edu.au/20129/7/whole_JohnstoneGradonR1972.pdf

► Tomato aspermy virus (TAV) was found infecting more than 90% of chrysanthemum plants collected from several gardens in the Hobart district. The virus is readily… (more)

▼ Tomato aspermy virus (TAV) was found infecting more than 90% of chrysanthemum plants collected from several gardens in the Hobart district. The virus is readily transferred by sap inoculation to tobacco (Nicotiana tabacum var. Hickory Prior) in which it causes a severe systemic disease, and real relative concentrations of infective particles in tobacco plants can be measured reliably on Chenopodium amaranticolor, a local lesion host, if certain procedures are adhered to. Tobacco plants may be freed from infection by growing them at a constant temperature of 36 C for between 5 and 30 days. The percentage of cures effected is generally greater if cuttings are taken from plants immediately after treatment and rooted in a mist propagation unit. A decreased rate of viral synthesis is one reason for the effectiveness of the method. Under normal conditions of heat treatment, virus multiplication could never be detected although some indirect evidence, from results with cytokinin applications to treated plants, suggested that limited multiplication still occurred. However, measurable synthesis did take place if heated plants were treated with actinomycin D. These observations, together with some additional information on rates of TAV accumulation in plant tissue under various conditions, support a concept of competition between the virus and its host for substrates and access to ribosomes. As ribosomal concentration falls markedly in plants undergoing heat treatment concomitant with an increase in host protein synthesis, an hypothesis is advanced that viral RNA competes poorly with host messenger RNA for the limited numbers of available ribosomes on which to synthesise their respective proteins. This concept may also be used to account for the successes in obtaining virus-free material from infected plants by meristem culture. The rate of virus inactivation in whole plants at 36°c is much slower than the rate in expressed sap, and faster than the rate in purified virus preparations. Also, the kinetics of inactivation both 'in vivo' and in expressed sap do not fit a reaction of the first order, but one of a higher order, showing that inactivation at high temperature is not solely a direct thermal effect. Large increases in the levels of two enzymes, polyphenoloxidase and ribonuclease, occur during heat treatment and these may directly inactivate TAV. The extent of increase of these heat-induced enzymes may vary greatly with the species and variety of tobacco, thus providing an explanation for many past observations and suggestions implicating a role of the host in heat treatment therapy. Several observations indicates that the cytokinin concentration falls in heated plants. This results in an almost complete cessation of mitosis as well as a decrease in the ionic strength of the cell sap concomitant with a large increase in cell volume. The pH of the cell sap also falls markedly during heat treatment. probably reduce the stability of TAV. These changes The observations on alterations in cell size and mitotic activity are…

Subjects/Keywords: Plants

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Johnstone, G. (1972). Therapy of virus-infected plants by heat treatment. (Thesis). University of Tasmania. Retrieved from https://eprints.utas.edu.au/20129/7/whole_JohnstoneGradonR1972.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Johnstone, GR. “Therapy of virus-infected plants by heat treatment.” 1972. Thesis, University of Tasmania. Accessed February 28, 2020. https://eprints.utas.edu.au/20129/7/whole_JohnstoneGradonR1972.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Johnstone, GR. “Therapy of virus-infected plants by heat treatment.” 1972. Web. 28 Feb 2020.

Vancouver:

Johnstone G. Therapy of virus-infected plants by heat treatment. [Internet] [Thesis]. University of Tasmania; 1972. [cited 2020 Feb 28]. Available from: https://eprints.utas.edu.au/20129/7/whole_JohnstoneGradonR1972.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Johnstone G. Therapy of virus-infected plants by heat treatment. [Thesis]. University of Tasmania; 1972. Available from: https://eprints.utas.edu.au/20129/7/whole_JohnstoneGradonR1972.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

12. Ndunguru, Enock Peter. Evaluation of Soil Fertility and Performance of Maize(Zea Mays L.)in Small Holders Maize Farms in Namtumbo District, Ruvuma Region.

Degree: Life Sciences, 2015, The Open University Of Tanzania

URL: http://repository.out.ac.tz/1183/1/ENOCK__Ndunguru_Dissertation_-_SUBMITTED.doc

► Maize yield in Namtumbo district is low and ranges from 1-2 t/ha in most small holders farms as compared to 7-10 t/ha reported in other… (more)

Subjects/Keywords: 580 Plants

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APA (6^th Edition):

Ndunguru, E. P. (2015). Evaluation of Soil Fertility and Performance of Maize(Zea Mays L.)in Small Holders Maize Farms in Namtumbo District, Ruvuma Region. (Masters Thesis). The Open University Of Tanzania. Retrieved from http://repository.out.ac.tz/1183/1/ENOCK__Ndunguru_Dissertation_-_SUBMITTED.doc

Chicago Manual of Style (16^th Edition):

Ndunguru, Enock Peter. “Evaluation of Soil Fertility and Performance of Maize(Zea Mays L.)in Small Holders Maize Farms in Namtumbo District, Ruvuma Region.” 2015. Masters Thesis, The Open University Of Tanzania. Accessed February 28, 2020. http://repository.out.ac.tz/1183/1/ENOCK__Ndunguru_Dissertation_-_SUBMITTED.doc.

MLA Handbook (7^th Edition):

Ndunguru, Enock Peter. “Evaluation of Soil Fertility and Performance of Maize(Zea Mays L.)in Small Holders Maize Farms in Namtumbo District, Ruvuma Region.” 2015. Web. 28 Feb 2020.

Vancouver:

Ndunguru EP. Evaluation of Soil Fertility and Performance of Maize(Zea Mays L.)in Small Holders Maize Farms in Namtumbo District, Ruvuma Region. [Internet] [Masters thesis]. The Open University Of Tanzania; 2015. [cited 2020 Feb 28]. Available from: http://repository.out.ac.tz/1183/1/ENOCK__Ndunguru_Dissertation_-_SUBMITTED.doc.

Council of Science Editors:

Ndunguru EP. Evaluation of Soil Fertility and Performance of Maize(Zea Mays L.)in Small Holders Maize Farms in Namtumbo District, Ruvuma Region. [Masters Thesis]. The Open University Of Tanzania; 2015. Available from: http://repository.out.ac.tz/1183/1/ENOCK__Ndunguru_Dissertation_-_SUBMITTED.doc

Rutgers University

13. Zhang, Yicheng, 1990-. Development of an autonomous plant-robot hybrid system for plant-human-environment studies.

Degree: MS, Mechanical and Aerospace Engineering, 2014, Rutgers University

URL: https://rucore.libraries.rutgers.edu/rutgers-lib/45597/

► The goal of this project is to develop a plant-robot hybrid system as a platform to enable and enhance the studies of plant-environment and plant-human… (more)

Subjects/Keywords: Robotics; Plants

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APA (6^th Edition):

Zhang, Yicheng, 1. (2014). Development of an autonomous plant-robot hybrid system for plant-human-environment studies. (Masters Thesis). Rutgers University. Retrieved from https://rucore.libraries.rutgers.edu/rutgers-lib/45597/

Chicago Manual of Style (16^th Edition):

Zhang, Yicheng, 1990-. “Development of an autonomous plant-robot hybrid system for plant-human-environment studies.” 2014. Masters Thesis, Rutgers University. Accessed February 28, 2020. https://rucore.libraries.rutgers.edu/rutgers-lib/45597/.

MLA Handbook (7^th Edition):

Zhang, Yicheng, 1990-. “Development of an autonomous plant-robot hybrid system for plant-human-environment studies.” 2014. Web. 28 Feb 2020.

Vancouver:

Zhang, Yicheng 1. Development of an autonomous plant-robot hybrid system for plant-human-environment studies. [Internet] [Masters thesis]. Rutgers University; 2014. [cited 2020 Feb 28]. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/45597/.

Council of Science Editors:

Zhang, Yicheng 1. Development of an autonomous plant-robot hybrid system for plant-human-environment studies. [Masters Thesis]. Rutgers University; 2014. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/45597/

University of Hawaii – Manoa

14. Ricordi, Alberto Henrique. Landscape architects' responses to the usage of Hawaiian plants in landscaping.

Degree: 2016, University of Hawaii – Manoa

URL: http://hdl.handle.net/10125/101753

►

M.S. University of Hawaii at Manoa 2010.

The passage of the Endangered Species Acts 73 and 236 of the Hawai´i State Legislature (1992 and 1993)… (more)

Subjects/Keywords: Tropical Plants; landscape architecture; Hawaiian plants

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APA (6^th Edition):

Ricordi, A. H. (2016). Landscape architects' responses to the usage of Hawaiian plants in landscaping. (Thesis). University of Hawaii – Manoa. Retrieved from http://hdl.handle.net/10125/101753

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ricordi, Alberto Henrique. “Landscape architects' responses to the usage of Hawaiian plants in landscaping.” 2016. Thesis, University of Hawaii – Manoa. Accessed February 28, 2020. http://hdl.handle.net/10125/101753.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ricordi, Alberto Henrique. “Landscape architects' responses to the usage of Hawaiian plants in landscaping.” 2016. Web. 28 Feb 2020.

Vancouver:

Ricordi AH. Landscape architects' responses to the usage of Hawaiian plants in landscaping. [Internet] [Thesis]. University of Hawaii – Manoa; 2016. [cited 2020 Feb 28]. Available from: http://hdl.handle.net/10125/101753.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ricordi AH. Landscape architects' responses to the usage of Hawaiian plants in landscaping. [Thesis]. University of Hawaii – Manoa; 2016. Available from: http://hdl.handle.net/10125/101753

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

15. Syed Sultan Beevi, S. Antioxidant, antimicrobial and chemopreventive efficacy of Raphanus sativus.

Degree: 2010, Jawaharlal Nehru Technological University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/2681

►

Raphanus sativus, a common cruciferous vegetable has been attributed to possess a number of pharmacological and therapeutic properties. Water, methanol, acetone, ethyl acetate, chloroform and… (more)

▼

Raphanus sativus, a common cruciferous vegetable has been attributed to possess a number of pharmacological and therapeutic properties. Water, methanol, acetone, ethyl acetate, chloroform and hexane extracts derived from root, stem and leaves of R. sativus were evaluated for the presence of phytochemicals such as isothiocyanates (ITCs) and polyphenolics. These extracts were checked for antioxidant and radical scavenging activity, antimicrobial activity, protective effect against oxidative damage induced by oxidants and anti-proliferative activity towards human cancer cell lines such as HeLa, A549, MCF-7 and PC-3 cells. Isothiocyanates (ITCs) were detected in considerable amount in root, stem and leaves of R. sativus. However, root extracts contained highest levels of ITCs, as compared to leaves and stem extracts. Highest amount of ITCs was extracted from root, when hexane was used as an extraction solvent. However, polar solvents were effective in recovering considerable amount of polyphenolics from R. sativus. R. sativus had total polyphenolic content, which was comparable to traditional rich source such as green and black tea. HPLC analysis indicated the presence of catechin, protocatechuic acid,syringic acid, vanillic acid, ferulic acid, sinapic acid, o-coumaric acid, myricetin and quercetin in R. sativus. Among different parts of R. sativus, leaves contained highest amount of phenolics and showed strongest antioxidant and radical scavenging activity. Of the different extraction solvents used, methanolic extract showed effective reductive capacity and significantly inhibited linoleic acid peroxidation, displayed metal chelating activity and effectively scavenged free radicals such as DPPH radicals, superoxide radicals, hydrogen peroxide and nitric oxide radicals respectively. All extracts except water extract of root, stem and leaves had a significant broad spectrum inhibitory activity. Ethyl acetate extract of root had potent antibacterial activity with significant inhibition, comparable to that of standard antibiotics against pathogenic bacteria. This was followed by ethyl acetate extract of leaves and stem. Further, ethyl acetate extract of different parts of R. sativus retained their antibacterial activity after heat treatment at 100°C for 30 min and their antibacterial activity was enhanced when pH was maintained in the acidic range, demonstrating their thermal stability and acid tolerance properties. Compositional analysis of ethyl acetate extract of root by GC-MS revealed the presence of polyunsaturated fatty acids (PUFAs), ITCs such as 4-(methylthio)-3-butenyl isothiocyanate (MTBITC) and 4-(methylthio)-3-butyl isothiocyanate (erucin), alkanes, eugenol and methyl cholesterol. Significant antibacterial activity of ethyl acetate extract of R. sativus root could be attributed to complex mixture of phytochemicals present in it R. sativus extracts per se showed no cytotoxicity and genotoxicity to lymphocytes.

Abstract includes, Reference p.176-204

Advisors/Committee Members: Lakshmi Narasu, M.

Subjects/Keywords: Plants; Therapeutic agents; Foods; Cruciferous plants

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APA (6^th Edition):

Syed Sultan Beevi, S. (2010). Antioxidant, antimicrobial and chemopreventive efficacy of Raphanus sativus. (Thesis). Jawaharlal Nehru Technological University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/2681

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Syed Sultan Beevi, S. “Antioxidant, antimicrobial and chemopreventive efficacy of Raphanus sativus.” 2010. Thesis, Jawaharlal Nehru Technological University. Accessed February 28, 2020. http://shodhganga.inflibnet.ac.in/handle/10603/2681.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Syed Sultan Beevi, S. “Antioxidant, antimicrobial and chemopreventive efficacy of Raphanus sativus.” 2010. Web. 28 Feb 2020.

Vancouver:

Syed Sultan Beevi S. Antioxidant, antimicrobial and chemopreventive efficacy of Raphanus sativus. [Internet] [Thesis]. Jawaharlal Nehru Technological University; 2010. [cited 2020 Feb 28]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/2681.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Syed Sultan Beevi S. Antioxidant, antimicrobial and chemopreventive efficacy of Raphanus sativus. [Thesis]. Jawaharlal Nehru Technological University; 2010. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/2681

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Pretoria

16. Kiggundu, Andrew. Engineering plant cysteine protease inhibitors for the transgenic control of banana weevil, Cosmopolites sordidus (Germar) (Coleoptera : Curculionidae) and other coleopteran insects in transgenic plants.

Degree: Plant Science, 2009, University of Pretoria

URL: http://hdl.handle.net/2263/23296

► Cysteine protease inhibitors (cystatins) are expressed in plants in response to wounding and insect herbivory and they form part of the native host-plant defence system.… (more)

▼ Cysteine protease inhibitors (cystatins) are expressed in plants in response to wounding and insect herbivory and they form part of the native host-plant defence system. Cysteine proteases are enzymes important in the break down of dietary proteins mainly in the mid gut of coleopteran insects such as the banana weevil. The inhibition of these proteases has a direct effect on the digestive activity of the insect resulting in protein deficiency. This significantly affects insect development and survival. Based on these observations, strategies have been designed involving expression of cysteine protease inhibitors for the transgenic control of insect pests of several crop plants. For this study, it was hypothesized that the major proteases in banana weevil are cysteine proteases and can be effectively targeted by plant cystatins. It was further hypothesised that since plant cystatins are defense related, certain amino acid residues may have undergone positive selection. This provides an opportunity to increase their inhibitory potential to the weevil gut proteases via protein engineering. To prove the hypotheses, both in-vitro and in-vivo assays were set up thus allowing us to demonstrate the presence of cysteine type proteases banana weevil as well as the effect of cystatins on the weevil proteases and early development. Initial in-vitro experiments were able to characterize the proteolytic activity of the banana weevil gut proteases, which are mostly of the cysteine type, and in particular cathepsin B and L like. Two recombinant phytocystatins were further successfully produced using a 6xHis-tagged affinity chromatogephy system in Escherichia coli bacteria. The recombinant phytocystatins were used in a newly developed vacuum infiltration assay system using banana stems. Young weevil larvae were allowed to develop on phytocystatin-treated stems for up to 10 days. They had a 60% reduction in body weight and rate of growth compared to those that grew in untreated stems. By carrying out sitedirected mutagenesis to improve the inhibition efficiency of a model papaya cystatin, more than 8 amino acid residues were found to be subjected to positive selection. Mutation of amino acids yielded improved the inhibition potential of papaya cystatin against the model cysteine protease papain. Increased inhibition was greatest when amino acids were changed in the highly variable regions of the amino acid sequence very closely to the conserved regions. This study has been able to show for the first time that banana weevils use cysteine protease as major protein hydrolysis enzymes and that these can be effectively targeted by plant cystatins. It has also created novel phytocystatins using engineering of single amino acid sites following an evolutionary approach to modulate them for improved activity and targeting specific proteases. Advisors/Committee Members: Prof K J Kunert (advisor), Dr A Viljoen (advisor), Prof D Michaud (coadvisor).

Subjects/Keywords: Insects; Transgenic plants; Transgenic control; Plants; UCTD

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kiggundu, A. (2009). Engineering plant cysteine protease inhibitors for the transgenic control of banana weevil, Cosmopolites sordidus (Germar) (Coleoptera : Curculionidae) and other coleopteran insects in transgenic plants. (Doctoral Dissertation). University of Pretoria. Retrieved from http://hdl.handle.net/2263/23296

Chicago Manual of Style (16^th Edition):

Kiggundu, Andrew. “Engineering plant cysteine protease inhibitors for the transgenic control of banana weevil, Cosmopolites sordidus (Germar) (Coleoptera : Curculionidae) and other coleopteran insects in transgenic plants.” 2009. Doctoral Dissertation, University of Pretoria. Accessed February 28, 2020. http://hdl.handle.net/2263/23296.

MLA Handbook (7^th Edition):

Kiggundu, Andrew. “Engineering plant cysteine protease inhibitors for the transgenic control of banana weevil, Cosmopolites sordidus (Germar) (Coleoptera : Curculionidae) and other coleopteran insects in transgenic plants.” 2009. Web. 28 Feb 2020.

Vancouver:

Kiggundu A. Engineering plant cysteine protease inhibitors for the transgenic control of banana weevil, Cosmopolites sordidus (Germar) (Coleoptera : Curculionidae) and other coleopteran insects in transgenic plants. [Internet] [Doctoral dissertation]. University of Pretoria; 2009. [cited 2020 Feb 28]. Available from: http://hdl.handle.net/2263/23296.

Council of Science Editors:

Kiggundu A. Engineering plant cysteine protease inhibitors for the transgenic control of banana weevil, Cosmopolites sordidus (Germar) (Coleoptera : Curculionidae) and other coleopteran insects in transgenic plants. [Doctoral Dissertation]. University of Pretoria; 2009. Available from: http://hdl.handle.net/2263/23296

University of Pretoria

17. [No author]. Engineering plant cysteine protease inhibitors for the transgenic control of banana weevil, Cosmopolites sordidus (Germar) (Coleoptera : Curculionidae) and other coleopteran insects in transgenic plants .

Degree: 2009, University of Pretoria

URL: http://upetd.up.ac.za/thesis/available/etd-01152009-155015/

► Cysteine protease inhibitors (cystatins) are expressed in plants in response to wounding and insect herbivory and they form part of the native host-plant defence system.… (more)

▼ Cysteine protease inhibitors (cystatins) are expressed in plants in response to wounding and insect herbivory and they form part of the native host-plant defence system. Cysteine proteases are enzymes important in the break down of dietary proteins mainly in the mid gut of coleopteran insects such as the banana weevil. The inhibition of these proteases has a direct effect on the digestive activity of the insect resulting in protein deficiency. This significantly affects insect development and survival. Based on these observations, strategies have been designed involving expression of cysteine protease inhibitors for the transgenic control of insect pests of several crop plants. For this study, it was hypothesized that the major proteases in banana weevil are cysteine proteases and can be effectively targeted by plant cystatins. It was further hypothesised that since plant cystatins are defense related, certain amino acid residues may have undergone positive selection. This provides an opportunity to increase their inhibitory potential to the weevil gut proteases via protein engineering. To prove the hypotheses, both in-vitro and in-vivo assays were set up thus allowing us to demonstrate the presence of cysteine type proteases banana weevil as well as the effect of cystatins on the weevil proteases and early development. Initial in-vitro experiments were able to characterize the proteolytic activity of the banana weevil gut proteases, which are mostly of the cysteine type, and in particular cathepsin B and L like. Two recombinant phytocystatins were further successfully produced using a 6xHis-tagged affinity chromatogephy system in Escherichia coli bacteria. The recombinant phytocystatins were used in a newly developed vacuum infiltration assay system using banana stems. Young weevil larvae were allowed to develop on phytocystatin-treated stems for up to 10 days. They had a 60% reduction in body weight and rate of growth compared to those that grew in untreated stems. By carrying out sitedirected mutagenesis to improve the inhibition efficiency of a model papaya cystatin, more than 8 amino acid residues were found to be subjected to positive selection. Mutation of amino acids yielded improved the inhibition potential of papaya cystatin against the model cysteine protease papain. Increased inhibition was greatest when amino acids were changed in the highly variable regions of the amino acid sequence very closely to the conserved regions. This study has been able to show for the first time that banana weevils use cysteine protease as major protein hydrolysis enzymes and that these can be effectively targeted by plant cystatins. It has also created novel phytocystatins using engineering of single amino acid sites following an evolutionary approach to modulate them for improved activity and targeting specific proteases. Advisors/Committee Members: Prof K J Kunert (advisor), Dr A Viljoen (advisor), Prof D Michaud (advisor).

Subjects/Keywords: Insects; Transgenic plants; Transgenic control; Plants; UCTD

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

author], [. (2009). Engineering plant cysteine protease inhibitors for the transgenic control of banana weevil, Cosmopolites sordidus (Germar) (Coleoptera : Curculionidae) and other coleopteran insects in transgenic plants . (Doctoral Dissertation). University of Pretoria. Retrieved from http://upetd.up.ac.za/thesis/available/etd-01152009-155015/

Chicago Manual of Style (16^th Edition):

author], [No. “Engineering plant cysteine protease inhibitors for the transgenic control of banana weevil, Cosmopolites sordidus (Germar) (Coleoptera : Curculionidae) and other coleopteran insects in transgenic plants .” 2009. Doctoral Dissertation, University of Pretoria. Accessed February 28, 2020. http://upetd.up.ac.za/thesis/available/etd-01152009-155015/.

MLA Handbook (7^th Edition):

author], [No. “Engineering plant cysteine protease inhibitors for the transgenic control of banana weevil, Cosmopolites sordidus (Germar) (Coleoptera : Curculionidae) and other coleopteran insects in transgenic plants .” 2009. Web. 28 Feb 2020.

Vancouver:

author] [. Engineering plant cysteine protease inhibitors for the transgenic control of banana weevil, Cosmopolites sordidus (Germar) (Coleoptera : Curculionidae) and other coleopteran insects in transgenic plants . [Internet] [Doctoral dissertation]. University of Pretoria; 2009. [cited 2020 Feb 28]. Available from: http://upetd.up.ac.za/thesis/available/etd-01152009-155015/.

Council of Science Editors:

author] [. Engineering plant cysteine protease inhibitors for the transgenic control of banana weevil, Cosmopolites sordidus (Germar) (Coleoptera : Curculionidae) and other coleopteran insects in transgenic plants . [Doctoral Dissertation]. University of Pretoria; 2009. Available from: http://upetd.up.ac.za/thesis/available/etd-01152009-155015/

University of KwaZulu-Natal

18. Mohammed, Aminu. Antioxidative and antidiabetic effects of some African medicinal plants.

Degree: Biochemistry, 2016, University of KwaZulu-Natal

URL: http://hdl.handle.net/10413/13526

► Three (3) medicinal plants [Aframomum melegueta K. Schum., Xylopia aethiopica (Dunal.) A. Rich. and Capsicum annuum L.] were selected based on their traditional uses in… (more)

▼ Three (3) medicinal plants [Aframomum melegueta K. Schum., Xylopia aethiopica (Dunal.) A. Rich. and Capsicum annuum L.] were selected based on their traditional uses in the treatment of diabetes in Africa. Various crude extracts and fractions from different parts of the plants were screened using several anti-oxidative and anti-diabetic tests in vitro. Most active fractions from each plant were used to examine in vivo anti-diabetic activity in type 2 diabetes (T2D) rat model. Additionally, possible bioactive compounds from most active extracts and fractions were analyzed by using GC-MS, TLC and NMR spectroscopy. The results showed that ethanolic extracts derived from the fruits of the plants demonstrated excellent anti-oxidative and anti-diabetic activities in vitro compared to other extracts from the same or different parts of these plants. After fractionation, ethyl acetate fraction from A. melegueta and acetone fractions from X. aethiopica and C. annuum exhibited strong radical scavenging (IC₅₀: 1-120 μg/mL) activity, inhibition of hemoglobin glycation (IC₅₀: 100-150 μg/mL), α-amylase (IC₅₀: 50-170 μg/mL) and α-glucosidase (IC₅₀: 40-87 μg/mL) activities hence were used for the in vivo study. The GC-MS analysis of the three (3) most active fractions revealed the presence of mostly phenolic compounds of 4-hydroxy-3-methoxyphenyl derivatives. Furthermore, the data of the in vivo study showed that oral intervention of the fractions (150 and 300 mg/kg bw) for 4 weeks demonstrated potent anti-diabetic actions via improving body weight gain, reducing feed and fluid intake and hyperglycemia, improving glucose tolerance ability, insulin sensitivity, amelioration of pancreatic β-cell histology and β-cell functions, improving dyslipidemia in a T2D rat model. Additionally, the pancreatic histopathological damages and other oxidative damages caused by the induction of diabetes were attenuated to near normal in the liver, kidney, heart and pancreas of the treated animals. The bioassay-guided fractionations lead to the isolation of 3 arylalkanes (6-paradol (1), 6-shagaol (2), and 6- gingerol (3)) and oleanolic acid (4) from A. melegueta fruits, when oleanolic acid (4) was the first to be isolated from A. melegueta. Moreover, 6-gingerol (3) and oleanolic acid (4) were similarly isolated for the first time from X. aethiopica fruits as well. These compounds have exhibited significant inhibitions against the α-amylase and α-glucosidase actions and thus are possible anti-diabetic agents and the anti-diabetic action of A. melegueta and X. aethiopica fruits is attributed to the presence of these compounds. This study also confirmed the use of these plants in African anti-diabetic traditional medicines by traditional healers. However, further clinical study is required to confirm these effects in human subjects. Advisors/Committee Members: Islam, Shahidul M. (advisor).

Subjects/Keywords: Biochemistry.; Antioxidative medicinal plants.; Antidiabetic medicinal plants.

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APA (6^th Edition):

Mohammed, A. (2016). Antioxidative and antidiabetic effects of some African medicinal plants. (Thesis). University of KwaZulu-Natal. Retrieved from http://hdl.handle.net/10413/13526

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mohammed, Aminu. “Antioxidative and antidiabetic effects of some African medicinal plants.” 2016. Thesis, University of KwaZulu-Natal. Accessed February 28, 2020. http://hdl.handle.net/10413/13526.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mohammed, Aminu. “Antioxidative and antidiabetic effects of some African medicinal plants.” 2016. Web. 28 Feb 2020.

Vancouver:

Mohammed A. Antioxidative and antidiabetic effects of some African medicinal plants. [Internet] [Thesis]. University of KwaZulu-Natal; 2016. [cited 2020 Feb 28]. Available from: http://hdl.handle.net/10413/13526.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mohammed A. Antioxidative and antidiabetic effects of some African medicinal plants. [Thesis]. University of KwaZulu-Natal; 2016. Available from: http://hdl.handle.net/10413/13526

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Mississippi State University

19. Cheshier, Joshua Craig. THE BIOLOGY, ECOLOGY AND MANAGEMENT OF COMMON REED [Phragmites australis (Cav.) Trin. Ex. Steudel].

Degree: MS, Plant and Soil Sciences, 2010, Mississippi State University

URL: http://sun.library.msstate.edu/ETD-db/theses/available/etd-06032010-161010/ ;

► Studies conducted to determine life history and starch allocation of common reed (<i>Phragmites australis</i>), and evaluate haplotype susceptibility to aquatic labeled herbicides. Twelve 0.1… (more)

Subjects/Keywords: Phragmites australis; Invasive Plants; Wetlands; Aquatic Plants

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APA (6^th Edition):

Cheshier, J. C. (2010). THE BIOLOGY, ECOLOGY AND MANAGEMENT OF COMMON REED [Phragmites australis (Cav.) Trin. Ex. Steudel]. (Masters Thesis). Mississippi State University. Retrieved from http://sun.library.msstate.edu/ETD-db/theses/available/etd-06032010-161010/ ;

Chicago Manual of Style (16^th Edition):

Cheshier, Joshua Craig. “THE BIOLOGY, ECOLOGY AND MANAGEMENT OF COMMON REED [Phragmites australis (Cav.) Trin. Ex. Steudel].” 2010. Masters Thesis, Mississippi State University. Accessed February 28, 2020. http://sun.library.msstate.edu/ETD-db/theses/available/etd-06032010-161010/ ;.

MLA Handbook (7^th Edition):

Cheshier, Joshua Craig. “THE BIOLOGY, ECOLOGY AND MANAGEMENT OF COMMON REED [Phragmites australis (Cav.) Trin. Ex. Steudel].” 2010. Web. 28 Feb 2020.

Vancouver:

Cheshier JC. THE BIOLOGY, ECOLOGY AND MANAGEMENT OF COMMON REED [Phragmites australis (Cav.) Trin. Ex. Steudel]. [Internet] [Masters thesis]. Mississippi State University; 2010. [cited 2020 Feb 28]. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-06032010-161010/ ;.

Council of Science Editors:

Cheshier JC. THE BIOLOGY, ECOLOGY AND MANAGEMENT OF COMMON REED [Phragmites australis (Cav.) Trin. Ex. Steudel]. [Masters Thesis]. Mississippi State University; 2010. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-06032010-161010/ ;

20. Poongothai, A. Antitumorigenic effect in Dla tumor induced mice and antimicrobial potential of ficus racemosa and its characterization by spectral and in silico studies; -.

Degree: Biochemistry, Biotechnology and Bioinformatics, 2014, Avinashilingam Deemed University For Women

URL: http://shodhganga.inflibnet.ac.in/handle/10603/22696

►

Medicinal plants a key role in the human health care About eighty percent of the world populations rely on the use of traditional medicine which… (more)

Subjects/Keywords: Antitumorigenic; medicinal plants

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APA (6^th Edition):

Poongothai, A. (2014). Antitumorigenic effect in Dla tumor induced mice and antimicrobial potential of ficus racemosa and its characterization by spectral and in silico studies; -. (Thesis). Avinashilingam Deemed University For Women. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/22696

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Poongothai, A. “Antitumorigenic effect in Dla tumor induced mice and antimicrobial potential of ficus racemosa and its characterization by spectral and in silico studies; -.” 2014. Thesis, Avinashilingam Deemed University For Women. Accessed February 28, 2020. http://shodhganga.inflibnet.ac.in/handle/10603/22696.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Poongothai, A. “Antitumorigenic effect in Dla tumor induced mice and antimicrobial potential of ficus racemosa and its characterization by spectral and in silico studies; -.” 2014. Web. 28 Feb 2020.

Vancouver:

Poongothai A. Antitumorigenic effect in Dla tumor induced mice and antimicrobial potential of ficus racemosa and its characterization by spectral and in silico studies; -. [Internet] [Thesis]. Avinashilingam Deemed University For Women; 2014. [cited 2020 Feb 28]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/22696.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Poongothai A. Antitumorigenic effect in Dla tumor induced mice and antimicrobial potential of ficus racemosa and its characterization by spectral and in silico studies; -. [Thesis]. Avinashilingam Deemed University For Women; 2014. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/22696

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Pretoria

21. Endah, Rosita. Isolation and characterization of two NPR1 genes in banana.

Degree: Plant Science, 2009, University of Pretoria

URL: http://hdl.handle.net/2263/23108

► The protein encoded by the Nonexpressor of pathogenesis-related gene 1 (NPR1) also referred to as Non inducible immunitiy 1 (NIM1) or Salicylic acid insensitive 1… (more)

▼ The protein encoded by the Nonexpressor of pathogenesis-related gene 1 (NPR1) also referred to as Non inducible immunitiy 1 (NIM1) or Salicylic acid insensitive 1 (SAI1) is a co-transcriptional regulator. The NPR1 gene plays a pivotal role in conferring broad spectrum resistant to plants. Elicitors like salicylic acid and pathogens coupled with the accumulation of reactive oxygen species influence its activation in the cytoplasm. The downstream activity of the NPR1 gene necessitates its translocation to the nucleus and an interaction with other transcription factors with a ‘TGAC’ core sequence for the induction of Pathogenesis-related genes. In this study I identified and isolated homologues of genes encoding the NPR1 protein in banana (Musa sp.). Southern blot analysis revealed the possible existence of more than one Musa NPR1 gene in four different banana cultivars. Furthermore, two banana NPR1 gene fragments designated (MNPR1A and MNPR1B) were isolated and their full lengths recovered and deposited in the gene bank. A preliminary phylogenetic analysis of Musa NPR1 revealed that the two newly isolated banana genes grouped closely with other monocot NPR1 genes. The two identified MNPR1-sequences differed greatly in their expression profile using quantitative real time polymerase chain reaction following either salicylic acid or methyl jasmonate treatment or treatment with Fusarium oxysporum Schlecht f. sp. cubense (Smith) Snyd. MNPR1A was expressed after Fusarium treatment with higher and earlier expression in the Fusarium-tolerant banana cultivar GCTCV-218 than in the Fusarium-susceptible banana cultivar Grand Naine. In comparison, MNPR1B was highly responsive to salicylic acid, but not to methyl jasmonate treatment, in both the tolerant banana cultivar GCTCV-218 and the susceptible banana cultivar Grand Naine. Expression of the MNPR1 genes correlated to Pathogenesis-related gene expression known to be involved in fungal resistance. It was found as a new result in this study that reduced sensitivity to Fusarium in GCTCV-218 might be partially attributed to the higher and an earlier expression of both MNPR1A and Pathogenesis-related-1 genes in this cultivar after Fusarium treatment. Advisors/Committee Members: Prof K J Kunert (advisor), Dr R Chikwamba (coadvisor), Dr N van den Berg (coadvisor).

Subjects/Keywords: Plants; Bananas; UCTD

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APA (6^th Edition):

Endah, R. (2009). Isolation and characterization of two NPR1 genes in banana. (Masters Thesis). University of Pretoria. Retrieved from http://hdl.handle.net/2263/23108

Chicago Manual of Style (16^th Edition):

Endah, Rosita. “Isolation and characterization of two NPR1 genes in banana.” 2009. Masters Thesis, University of Pretoria. Accessed February 28, 2020. http://hdl.handle.net/2263/23108.

MLA Handbook (7^th Edition):

Endah, Rosita. “Isolation and characterization of two NPR1 genes in banana.” 2009. Web. 28 Feb 2020.

Vancouver:

Endah R. Isolation and characterization of two NPR1 genes in banana. [Internet] [Masters thesis]. University of Pretoria; 2009. [cited 2020 Feb 28]. Available from: http://hdl.handle.net/2263/23108.

Council of Science Editors:

Endah R. Isolation and characterization of two NPR1 genes in banana. [Masters Thesis]. University of Pretoria; 2009. Available from: http://hdl.handle.net/2263/23108

Texas A&M University

22. Surovtseva, Yulia V. Telomere-associated proteins in Arabidopsis thaliana.

Degree: 2009, Texas A&M University

URL: http://hdl.handle.net/1969.1/ETD-TAMU-2656

► Telomeres comprise the physical ends of chromosomes. Essential functions of telomeres include protecting the terminus from being recognized as a DNA doublestrand break and facilitating… (more)

▼ Telomeres comprise the physical ends of chromosomes. Essential functions of telomeres include protecting the terminus from being recognized as a DNA doublestrand break and facilitating the complete replication of the physical end of the DNA. Telomere functions are mediated by a large array of telomere-associated proteins. Mutations in telomere-related genes cause immediate telomere dysfunction, activation of DNA damage response, and accumulation of end-to-end chromosome fusions. In addition, changes in telomere complex composition may affect the ability of the telomerase enzyme to maintain telomeres in vivo. Here, we describe the characterization of telomere-associated proteins in the flowering plant, Arabidopsis thaliana. Using a bioinformatics approach, we identified twelve proteins with sequence similarity to vertebrate duplex telomere DNA binding proteins TRF1 and TRF2. We showed that, like their vertebrate counterparts, some of the Arabidopsis TRFL (TRF-LIKE) proteins can homodimerize and bind telomeric DNA in vitro, indicating that Arabidopsis encodes a large family of double-strand telomeric DNA binding proteins. We have also characterized three Arabidopsis POT1 proteins whose homologs in yeast and vertebrates associate with the single-stranded portion of telomeric DNA. Unexpectedly, we found that unlike POT1 protein in other organisms, Arabidopsis AtPOT1a protein associates with telomeres only in the S phase of the cell cycle and is a physical component of the active telomerase RNP complex, providing positive telomere length regulation. Our data implicated AtPOT1b, another Arabidopsis POT1 protein, in chromosome end protection. Finally, we showed that Arabidopsis thaliana has evolved a third POT1 protein, AtPOT1c, which contributes to both telomere length regulation and telomerase activity, and maintenance of the structure of the chromosome terminus. Thus, Arabidopsis has evolved a set of POT1 proteins that make distinct and novel contributions to telomere biology. Finally, we describe the identification and characterization of a novel Arabidopsis protein CIT1 (Critical for Integrity of Telomeres 1), and show that CIT1 deficiency leads to an immediate and profound telomere dysfunction and chromosome end deprotection. Altogether, these data provide new insight into plant telomereassociated factors and significantly improve our understanding of the overall architecture and evolution of telomeric complex in Arabidopsis. Advisors/Committee Members: Shippen, Dorothy (advisor), McKnight, Thomas (committee member), Peterson, David (committee member), Reinhart, Gregory (committee member).

Subjects/Keywords: telomeres; plants; genome

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APA (6^th Edition):

Surovtseva, Y. V. (2009). Telomere-associated proteins in Arabidopsis thaliana. (Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-2656

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Surovtseva, Yulia V. “Telomere-associated proteins in Arabidopsis thaliana.” 2009. Thesis, Texas A&M University. Accessed February 28, 2020. http://hdl.handle.net/1969.1/ETD-TAMU-2656.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Surovtseva, Yulia V. “Telomere-associated proteins in Arabidopsis thaliana.” 2009. Web. 28 Feb 2020.

Vancouver:

Surovtseva YV. Telomere-associated proteins in Arabidopsis thaliana. [Internet] [Thesis]. Texas A&M University; 2009. [cited 2020 Feb 28]. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2656.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Surovtseva YV. Telomere-associated proteins in Arabidopsis thaliana. [Thesis]. Texas A&M University; 2009. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2656

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University

23. Berg, Matthew. Integrating Historical Imagery and Sediment Radioisotopes to Shed Light on Long-Term Rangeland Dynamics and Ecosystem Services at the Watershed Scale.

Degree: 2014, Texas A&M University

URL: http://hdl.handle.net/1969.1/152607

► Rangelands are widespread and include grasslands, shrublands, and woodlands, covering more than two thirds of the earth?s land surface. This cover type represents half of… (more)

▼ Rangelands are widespread and include grasslands, shrublands, and woodlands, covering more than two thirds of the earth?s land surface. This cover type represents half of the land area in the United States. These systems are extremely dynamic and respond to natural processes as well as varying degrees of human impact. In the southern Great Plains, land cover and land use have changed dramatically over the last century. However, there is tremendous uncertainty as to the timing and magnitude of such transitions and much more so regarding the effects on hydrology and sediment dynamics in these areas. Using a watershed approach in the Lampasas Cut Plain of Texas, we applied object-oriented classification methods and hand-digitizing of historical aerial photos to track the extent of woody plant cover, cropland area, and small ponds through time. We compared these results with population trends to determine the relationship between social and environmental variables. Finally, we conducted sediment analyses of cores from constructed reservoirs in each watershed to establish a chronological sequence of rangeland processes. Woody plant cover displayed very complex responses between areas yet was very similar among watersheds in the same setting. Prolonged decreases occurred over the first half of the study period before rebounding in Lampasas County. By contrast, shrub cover decreased and remained low and stable in Mills County over the last several decades. Woody cover in an urbanized watershed consistently increased. Cropland area showed marked decreases over all areas, declining by 77% between the 1930s and 2012. The number of small ponds increased by over 250% over the same period. Trends in woody plant cover were closely related to population in each context. The opposing trends of cropland and pond density were strongly correlated. Precipitation, streamflow, and baseflow were largely unchanged over the last 90 years, suggesting a minimal impact of land use and land cover on local hydrology. Sediment delivery did increase immediately after drought periods, when intense rainfall caused soil loss as a result of drought-induced vegetation loss. These findings are critical to understanding the implications for future sustainability of rangeland landscapes and the ecosystem services they provide. Advisors/Committee Members: Wilcox, Bradford (advisor), Popescu, Sorin (advisor), Fox, William (committee member), Marcantonio, Franco (committee member), Angerer, Jay (committee member).

Subjects/Keywords: rangelands; woody plants

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APA (6^th Edition):

Berg, M. (2014). Integrating Historical Imagery and Sediment Radioisotopes to Shed Light on Long-Term Rangeland Dynamics and Ecosystem Services at the Watershed Scale. (Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/152607

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Berg, Matthew. “Integrating Historical Imagery and Sediment Radioisotopes to Shed Light on Long-Term Rangeland Dynamics and Ecosystem Services at the Watershed Scale.” 2014. Thesis, Texas A&M University. Accessed February 28, 2020. http://hdl.handle.net/1969.1/152607.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Berg, Matthew. “Integrating Historical Imagery and Sediment Radioisotopes to Shed Light on Long-Term Rangeland Dynamics and Ecosystem Services at the Watershed Scale.” 2014. Web. 28 Feb 2020.

Vancouver:

Berg M. Integrating Historical Imagery and Sediment Radioisotopes to Shed Light on Long-Term Rangeland Dynamics and Ecosystem Services at the Watershed Scale. [Internet] [Thesis]. Texas A&M University; 2014. [cited 2020 Feb 28]. Available from: http://hdl.handle.net/1969.1/152607.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Berg M. Integrating Historical Imagery and Sediment Radioisotopes to Shed Light on Long-Term Rangeland Dynamics and Ecosystem Services at the Watershed Scale. [Thesis]. Texas A&M University; 2014. Available from: http://hdl.handle.net/1969.1/152607

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Victoria University of Wellington

24. Hon, Naven. Food selection by the northern yellow-cheeked crested gibbons (Nomascus annamensis), northern Cambodia.

Degree: 2016, Victoria University of Wellington

URL: http://hdl.handle.net/10063/5098

► Tropical regions have extremely high plant diversity, which in turn supports a high diversity of animals. However, not all plant species are selected by animals… (more)

▼ Tropical regions have extremely high plant diversity, which in turn supports a high diversity of animals. However, not all plant species are selected by animals as food sources, with some herbivores selecting only specific plants as food as not all plants have the same nutrient make up. Animals must select which food items to include in their diets, as the amount and type of nutrients in their diet can affect lifespan, health, fitness, and reproduction. Gibbon populations have declined significantly in recent years due to habitat destruction and hunting. Northern yellow-cheeked crested gibbon (Nomascus annamensis) is a newly described species, and has a limited distribution restricted to Cambodia, Laos and Vietnam. The northern yellow-cheeked crested gibbons play an important role in seed dispersal, yet little is currently known about this species, including its food selection and nutritional needs. However, data on food selection and nutritional composition of selected food items would greatly inform the conservation of both wild and captive populations of this species. This study aims to quantify food selection by the northern yellow-cheeked crested gibbons by investigating the main plant species consumed and the influence of the availability of food items on their selection. The study also explores the nutritional composition of food items consumed by this gibbon species and identifying key plant species that provide these significant nutrients. A habituated group of the northern yellow-cheeked crested gibbons with five members located in northern Cambodia was studied for 12 weeks during the dry season, and focal animal sampling was used to observe individual feeding behaviours. Four main activity categories were recorded including resting, feeding, travelling and socializing. Phenological data was recorded from transect lines, and plant densities from 20 vegetation plots inside the home range of this group of gibbons were also measured. Seventy-four plant samples from 20 tree and liana species that were consumed by this group of gibbons were collected for nutritional analyses. These samples were initially dried in sunlight, and then oven dried before levels of protein, total non-structural carbohydrates, lipids, fibres and condensed tannins were measured at the Nutritional Ecology Lab at Hunter College of the City University of New York, New York. The northern yellow-cheeked crested gibbon individuals spent most of the time resting, followed by feeding, travelling and socializing. Their main diet was fruit, supplemented with young leaves, flowers, mature leaves, and occasionally insects. Individuals selected food from 37 plant species, but predominately fed on just 16 of these species. The three most-consumed species were fruit from Ilex umbellulata (tree), Ficus. sp (liana), and young leaves from Lithocarpus elegans (tree). There was a significant relationship between feeding time and the availability of flowers, indicating that flowers were actively selected for when present. However, there was no… Advisors/Committee Members: Ryan, Ken, Behie, Alison.

Subjects/Keywords: Gibbons; Plants; Food

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hon, N. (2016). Food selection by the northern yellow-cheeked crested gibbons (Nomascus annamensis), northern Cambodia. (Masters Thesis). Victoria University of Wellington. Retrieved from http://hdl.handle.net/10063/5098

Chicago Manual of Style (16^th Edition):

Hon, Naven. “Food selection by the northern yellow-cheeked crested gibbons (Nomascus annamensis), northern Cambodia.” 2016. Masters Thesis, Victoria University of Wellington. Accessed February 28, 2020. http://hdl.handle.net/10063/5098.

MLA Handbook (7^th Edition):

Hon, Naven. “Food selection by the northern yellow-cheeked crested gibbons (Nomascus annamensis), northern Cambodia.” 2016. Web. 28 Feb 2020.

Vancouver:

Hon N. Food selection by the northern yellow-cheeked crested gibbons (Nomascus annamensis), northern Cambodia. [Internet] [Masters thesis]. Victoria University of Wellington; 2016. [cited 2020 Feb 28]. Available from: http://hdl.handle.net/10063/5098.

Council of Science Editors:

Hon N. Food selection by the northern yellow-cheeked crested gibbons (Nomascus annamensis), northern Cambodia. [Masters Thesis]. Victoria University of Wellington; 2016. Available from: http://hdl.handle.net/10063/5098

University of Aberdeen

25. Tajuddin, Rosnida Binti. Nutrient transport in ectomycorrhiza.

Degree: PhD, 2013, University of Aberdeen

URL: http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=210785 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.606435

► Ectomycorrhizal (ECM) fungi form mutualistic symbioses with trees in boreal and north temperate forests and have key roles in regulating biogeochemical cycles. The extensive mycelium… (more)

Subjects/Keywords: 570; Ectomycorrhizas; Plants

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tajuddin, R. B. (2013). Nutrient transport in ectomycorrhiza. (Doctoral Dissertation). University of Aberdeen. Retrieved from http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=210785 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.606435

Chicago Manual of Style (16^th Edition):

Tajuddin, Rosnida Binti. “Nutrient transport in ectomycorrhiza.” 2013. Doctoral Dissertation, University of Aberdeen. Accessed February 28, 2020. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=210785 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.606435.

MLA Handbook (7^th Edition):

Tajuddin, Rosnida Binti. “Nutrient transport in ectomycorrhiza.” 2013. Web. 28 Feb 2020.

Vancouver:

Tajuddin RB. Nutrient transport in ectomycorrhiza. [Internet] [Doctoral dissertation]. University of Aberdeen; 2013. [cited 2020 Feb 28]. Available from: http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=210785 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.606435.

Council of Science Editors:

Tajuddin RB. Nutrient transport in ectomycorrhiza. [Doctoral Dissertation]. University of Aberdeen; 2013. Available from: http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=210785 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.606435

University of Aberdeen

26. Lomax, Charlotte. Investigating the origin and transport of methylated arsenic species in plants.

Degree: PhD, 2013, University of Aberdeen

URL: http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=203948 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.600090

► Inorganic arsenic is a toxic element known to cause various diseases and cancers in humans. Arsenic contamination is widespread worldwide, particularly in South-East Asia where… (more)

Subjects/Keywords: 570; Arsenic; Plants

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lomax, C. (2013). Investigating the origin and transport of methylated arsenic species in plants. (Doctoral Dissertation). University of Aberdeen. Retrieved from http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=203948 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.600090

Chicago Manual of Style (16^th Edition):

Lomax, Charlotte. “Investigating the origin and transport of methylated arsenic species in plants.” 2013. Doctoral Dissertation, University of Aberdeen. Accessed February 28, 2020. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=203948 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.600090.

MLA Handbook (7^th Edition):

Lomax, Charlotte. “Investigating the origin and transport of methylated arsenic species in plants.” 2013. Web. 28 Feb 2020.

Vancouver:

Lomax C. Investigating the origin and transport of methylated arsenic species in plants. [Internet] [Doctoral dissertation]. University of Aberdeen; 2013. [cited 2020 Feb 28]. Available from: http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=203948 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.600090.

Council of Science Editors:

Lomax C. Investigating the origin and transport of methylated arsenic species in plants. [Doctoral Dissertation]. University of Aberdeen; 2013. Available from: http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=203948 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.600090

Universidad Nacional de Colombia

27. Bonilla Morales, Miguel Macgayver. Biogeografía y morfología de las Passifloraceae (subg. Tacsonia, Rathea y Manicata) del trópico andino como estrategia de conservación.

Degree: http://www.bdigital.unal.edu.co/47460/, 2014, Universidad Nacional de Colombia

URL: http://www.bdigital.unal.edu.co/47460/1/Bonilla_2014_Tesis_Maestr%C3%ADa.pdf

► El género Passiflora L. es el más importante de la familia Passifloraceae por su alto potencial y por poseer especies con fruto comestible. Entre estas,… (more)

▼ El género Passiflora L. es el más importante de la familia Passifloraceae por su alto potencial y por poseer especies con fruto comestible. Entre estas, la supersección Tacsonia se caracteriza principalmente por presentar especies con hipantio elongado, corona reducida y distribución en los Andes tropicales. A pesar de este potencial, Tacsonia carece de información acerca su biogeografía, uso y conservación que les permita un mejor desarrollo en los países andinos. El objetivo de esta investigación es establecer la distribución, diversidad, conservación y preferencias climáticas de las especies de Tacsonia mediante el uso de los sistemas de información geográfica (SIG). Una base de datos fue construida a partir de la información de las etiquetes de ejemplares botánicos depositadas en 85 herbarios consultados de manera presencial y en línea. Esta información fue tabulada y analizada con el uso de los programas DIVA-GIS y ArcGis, con los cuales fueron generados los mapas de distribución real, potencial y de riqueza. El estatus de conservación fue establecido para cada especie siguiendo las categorías de IUCN y bajo los parámetros de are de ocupación (AOO) y distancia máxima (Dmax). Un total de 3.447 registros fueron reunidos y se identificaron 63 especies distribuidas en los andes de Venezuela, Colombia, Ecuador, Perú y Bolivia entre los 1.500 a 4.300 msnm. El 35% de las especies producen fruto comestible y solo dos son comercializadas bajo los nombres de curuba, tacso, taxo o tumbo (P. tripartita var. mollissima y P. tarminiana). La mayor riqueza y endemismo se concentra en Colombia, con 34 especies y 22 de estas endémicas, seguida por Perú con 22 spp. y 12 endémicas en altitudes superiores a los 2500 msnm. La distribución potencial muestra que la mayor concentración de especies (11 a 14 spp.) se localiza en el norte cordillera Oriental en Colombia y los Andes centrales de Venezuela. Adicionalmente, la mayoría de las áreas potenciales con riqueza de especies están fuera de los sistemas nacionales de áreas protegidas. El 84% de las especies presenta algún grado de amenaza, 26% de ellas están en peligro de crítico (CR), 17% en peligro de extinción (EN) y el resto son vulnerables (VU). En cuanto a los vacíos de colecciones, el sur de la cordillera Oriental y el sur de los Andes peruanos fueron identificadas como zonas no exploradas. El análisis multivariado (ACP) del clima mostro tres grandes grupos principales discriminados por las variables asociadas a la precipitación y temperatura, y dentro de los cuales uno está representado por la mayoría de especies endémicas de Colombia. Los resultados son la base para futuros programas de diversificación frutícola en los países andinos que permitan una mayor promoción y uso potencial de los recursos genéticos de las pasifloras. Además, el conocimiento de la diversidad y distribución de Tacsonia permitirá la implementación de estrategias de conservación de las especies más amenazadas y de sus habitas que integre la gestión agrícola y el medio ambiente a escala del…

Subjects/Keywords: 58 Plantas / Plants

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Bonilla Morales, M. M. (2014). Biogeografía y morfología de las Passifloraceae (subg. Tacsonia, Rathea y Manicata) del trópico andino como estrategia de conservación. (Thesis). Universidad Nacional de Colombia. Retrieved from http://www.bdigital.unal.edu.co/47460/1/Bonilla_2014_Tesis_Maestr%C3%ADa.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Bonilla Morales, Miguel Macgayver. “Biogeografía y morfología de las Passifloraceae (subg. Tacsonia, Rathea y Manicata) del trópico andino como estrategia de conservación.” 2014. Thesis, Universidad Nacional de Colombia. Accessed February 28, 2020. http://www.bdigital.unal.edu.co/47460/1/Bonilla_2014_Tesis_Maestr%C3%ADa.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Bonilla Morales, Miguel Macgayver. “Biogeografía y morfología de las Passifloraceae (subg. Tacsonia, Rathea y Manicata) del trópico andino como estrategia de conservación.” 2014. Web. 28 Feb 2020.

Vancouver:

Bonilla Morales MM. Biogeografía y morfología de las Passifloraceae (subg. Tacsonia, Rathea y Manicata) del trópico andino como estrategia de conservación. [Internet] [Thesis]. Universidad Nacional de Colombia; 2014. [cited 2020 Feb 28]. Available from: http://www.bdigital.unal.edu.co/47460/1/Bonilla_2014_Tesis_Maestr%C3%ADa.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Bonilla Morales MM. Biogeografía y morfología de las Passifloraceae (subg. Tacsonia, Rathea y Manicata) del trópico andino como estrategia de conservación. [Thesis]. Universidad Nacional de Colombia; 2014. Available from: http://www.bdigital.unal.edu.co/47460/1/Bonilla_2014_Tesis_Maestr%C3%ADa.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidad Nacional de Colombia

28. Parra Aldana, César Augusto. Regeneración natural del roble negro (Colombobalanus excelsa) en dos poblaciones de la Cordillera oriental de Colombia.

Degree: http://www.bdigital.unal.edu.co/48791/, 2011, Universidad Nacional de Colombia

URL: http://www.bdigital.unal.edu.co/48791/1/cesaraugustoparraaldana.2011.pdf

►

Resumen: Colombobalanus excelsa es una especie endémica de la zona andina de Colombia, con cuatro poblaciones aisladas que forman rodales homogéneos conocidos como robledales negros.… (more)

▼

Resumen: Colombobalanus excelsa es una especie endémica de la zona andina de Colombia, con cuatro poblaciones aisladas que forman rodales homogéneos conocidos como robledales negros. Se encuentra en categoría vulnerable de amenaza, debido principalmente a la conversión del bosque en tierras de uso agropecuarios. Este estudio evalúa los procesos de suministro de propágalos por vía sexual y la estructura del roble, en dos poblaciones de la Cordillera oriental colombiana. Se establecieron 16 transectos permanentes de 0,1 ha y se determinó la estructura de adultos (> 10 cm DAP) y de la regeneración natural. Durante un año se realizaron evaluaciones sobre los eventos de fructificación, lluvia de semillas, germinación de semillas y banco de semillas. La estructura diamétrica de roble negro tiene forma de “J” invertida en ambas poblaciones, aunque con significativas diferencias en la abundancia de árboles adultos. La cantidad de plántulas (< 50 cm de altura), por hectárea se considera baja en los ambos bosques (466 en Huila y 166 en Santander). La fructificación fue escasa (15% a 22% del número de árboles) en los períodos máximos. El ingreso de propágulos a través de la lluvia de semillas sanas fue muy bajo en ambas localidades (49.444 semillas/ha/año en Santander y 6.667 en Huila). La germinación de las semillas también resultó muy baja (7,25 ± 0,96 %). No se encontraron semillas de roble negro en las muestras del banco de semillas. Se discuten las implicaciones del extremadamente bajo suministro de renuevos y propágulos de roble negro, lo cual potencialmente puede poner en riesgo la persistencia de estos bosques

Colombobalanus excelsa is an endemic species of the Andean region of Colombia, with four isolated populations, forming pure stands (black oak forests). It has been classified in the threat category “Vulnerable”, mainly due to forest conversion for agricultural uses. This study evaluates the recruitment processes via sexual propagules and the structure of natural regeneration in two populations of the eastern cordillera of Colombia. We established 16 permanent transects of 0.1 ha-each and determined the structure of adults (> 10 cm DBH) and the natural regeneration. We assessed fruiting times, seed rain, seed germination, and seed bank for one year. The diameter structure of black oak is inverse J-shaped in both populations; however, the number of seedlings in the categories of natural regeneration (<50 cm in height) per hectare, was considered very low (466 in Huila and 166 in Santander). Fruiting was low (15% to 22% of number of trees) in peak periods. The influx of propagules through the healthy seed rain was very low in both localities (49.444 seeds ha-1 yr-1 in Santander and 6.667 in Huila). Seed germination was also very low (7.25 ± 0.96%). Seeds of black oak were not found in samples of seed bank. We discuss the implications of the extremely low supply of seedlings and propagules of black oak, which potentially can jeopardize the persistence of these forests

Subjects/Keywords: 58 Plantas / Plants

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Parra Aldana, C. A. (2011). Regeneración natural del roble negro (Colombobalanus excelsa) en dos poblaciones de la Cordillera oriental de Colombia. (Thesis). Universidad Nacional de Colombia. Retrieved from http://www.bdigital.unal.edu.co/48791/1/cesaraugustoparraaldana.2011.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Parra Aldana, César Augusto. “Regeneración natural del roble negro (Colombobalanus excelsa) en dos poblaciones de la Cordillera oriental de Colombia.” 2011. Thesis, Universidad Nacional de Colombia. Accessed February 28, 2020. http://www.bdigital.unal.edu.co/48791/1/cesaraugustoparraaldana.2011.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Parra Aldana, César Augusto. “Regeneración natural del roble negro (Colombobalanus excelsa) en dos poblaciones de la Cordillera oriental de Colombia.” 2011. Web. 28 Feb 2020.

Vancouver:

Parra Aldana CA. Regeneración natural del roble negro (Colombobalanus excelsa) en dos poblaciones de la Cordillera oriental de Colombia. [Internet] [Thesis]. Universidad Nacional de Colombia; 2011. [cited 2020 Feb 28]. Available from: http://www.bdigital.unal.edu.co/48791/1/cesaraugustoparraaldana.2011.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Parra Aldana CA. Regeneración natural del roble negro (Colombobalanus excelsa) en dos poblaciones de la Cordillera oriental de Colombia. [Thesis]. Universidad Nacional de Colombia; 2011. Available from: http://www.bdigital.unal.edu.co/48791/1/cesaraugustoparraaldana.2011.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidad Nacional de Colombia

29. Obando Melo, Viviana Patricia. Variabilidad morfométrica de neoleucinodes elegantalis (Guenée): Perforador de fruto de solanáceas de importancia económica .

Degree: http://www.bdigital.unal.edu.co/5346/, 2011, Universidad Nacional de Colombia

URL: http://www.bdigital.unal.edu.co/5346/1/37084704.2011.pdf

► N. elegantalis ó barrenador del fruto, es un insecto plaga considerado el más influyente en cultivos solanáceos de importancia comercial: lulo, tomate de mesa, tomate… (more)

▼ N. elegantalis ó barrenador del fruto, es un insecto plaga considerado el más influyente en cultivos solanáceos de importancia comercial: lulo, tomate de mesa, tomate de árbol, pimentón y berenjena. Además de las pérdidas económicas directas en el cultivo, es catalogada como plaga cuarentenaria, lo cual impide la exportación de frutos de interés internacional. Actualmente en Colombia la especie se encuentra registrada en 18 departamentos y su distribución es amplia: de 0 a 2600 msnm. Debido a la especificidad de parasitoides que presenta de acuerdo con el hospedero y a la relación ausencia/presencia de la especie según el hospedero y el rango altitudinal, se consideró una posible formación de razas, biotipos o especies cripticas, que se hacen necesarios reconocer para un manejo adecuado de la plaga. En los últimos años se ha incrementado el uso de la morfometría geométrica para identificación y caracterización de la variabilidad intra e inter especies. En este trabajo se compararon patrones morfométricos de conformación y tamaño del ala, mediante morfometría geométrica en alas de 803 hembras y 748 machos, originarios de 15 departamentos de Colombia. Se midieron variaciones de la especie entre rangos altitudinales, ecorregiones, zonas de vida y hospederos con la ayuda de análisis estadísticos univariados y multivariados. La variación en el tamaño y la conformación de los individuos fue evidente: se confirmó dimorfismo sexual, siendo las hembras más grandes que los machos y con la conformación de las alas más amplias. En el tamaño y la conformación de los individuos contribuyeron los factores ambientales considerados, excepto, las zonas de vida, cuyos individuos no mostraron separación en ninguna de las variables. En tamaño, las polillas se ajustaron a la regla de Bergmann, especímenes más grandes a mayor altitud. De acuerdo con el hospedero, hubo una relación entre el tamaño del fruto y el tamaño del individuo y en las ecorregiones, se noto un incremento en el tamaño de los ejemplares de occidente a oriente en la ubicación geográfica de Colombia. En los tres factores: altitud, ecorregión y hospederos las diferencias en tamaño fueron atribuidos a rasgos plásticos fisiológicos de la especie. Con respecto a las variaciones en conformación fue evidente la separación de individuos de los extremos altitudinales en ambos sexos: a mayor altitud la conformación del ala fue más estrecha. Con las ecorregiones y los hospederos, las variaciones en conformación alar se manifestaron solo en hembras. En ecorregiones resaltaron las diferencias de los organismos originarios del Bosque seco Valle del Cauca y según los hospederos, tuvieron una clara separación los individuos provenientes de las solanáceas silvestres con respecto a los explotados comercialmente. En los tres casos se contempló un posible aislamiento de las poblaciones o fragmentación territorial atribuido a los altos índices de contaminación inducida por plaguicidas, fertilizantes, monocultivo, entre otros, que han modificado la conformación alar de las especies…

Subjects/Keywords: 58 Plantas / Plants

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Obando Melo, V. P. (2011). Variabilidad morfométrica de neoleucinodes elegantalis (Guenée): Perforador de fruto de solanáceas de importancia económica . (Thesis). Universidad Nacional de Colombia. Retrieved from http://www.bdigital.unal.edu.co/5346/1/37084704.2011.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Obando Melo, Viviana Patricia. “Variabilidad morfométrica de neoleucinodes elegantalis (Guenée): Perforador de fruto de solanáceas de importancia económica .” 2011. Thesis, Universidad Nacional de Colombia. Accessed February 28, 2020. http://www.bdigital.unal.edu.co/5346/1/37084704.2011.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Obando Melo, Viviana Patricia. “Variabilidad morfométrica de neoleucinodes elegantalis (Guenée): Perforador de fruto de solanáceas de importancia económica .” 2011. Web. 28 Feb 2020.

Vancouver:

Obando Melo VP. Variabilidad morfométrica de neoleucinodes elegantalis (Guenée): Perforador de fruto de solanáceas de importancia económica . [Internet] [Thesis]. Universidad Nacional de Colombia; 2011. [cited 2020 Feb 28]. Available from: http://www.bdigital.unal.edu.co/5346/1/37084704.2011.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Obando Melo VP. Variabilidad morfométrica de neoleucinodes elegantalis (Guenée): Perforador de fruto de solanáceas de importancia económica . [Thesis]. Universidad Nacional de Colombia; 2011. Available from: http://www.bdigital.unal.edu.co/5346/1/37084704.2011.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidad Nacional de Colombia

30. Pinto Zárate, Jairo Humberto. La vegetación de la región de vida paramuna colombiana: Con énfasis en la cordillera Occidental y los páramos del norte de Colombia / The vegetation of the Colombian páramo region: With emphasis on the Western cordillera and the páramos of northern Colombia.

Degree: http://www.bdigital.unal.edu.co/8500/, 2009, Universidad Nacional de Colombia

URL: http://www.bdigital.unal.edu.co/8500/1/190189.2009.pdf

► La vegetación zonal paramuna de la cordillera Occidental colombiana está representada por 28 unidades sintaxonómicas comprendidas en catorce asociaciones, cinco subasociaciones, cinco alianzas y tres… (more)

▼ La vegetación zonal paramuna de la cordillera Occidental colombiana está representada por 28 unidades sintaxonómicas comprendidas en catorce asociaciones, cinco subasociaciones, cinco alianzas y tres órdenes integrados en una única clase para la franja paramuna de Tatamá y Frontino. Ocho de estos conjuntos corresponden a enmiendas de unidades pertenecientes a las propuestas originales para la cordillera. En el caso de los páramos del norte de Colombia, las formaciones se resumen en 28 unidades zonales reunidas en quince asociaciones, seis subasociaciones, cinco alianzas, un orden y una clase, complementadas por cinco asociaciones y una subasociación azonales. Seis de las agrupaciones originales planteadas para la region fueron validadas, y cinco comunidades ecológicas fueron incorporadas formalmente como categorías sintaxonómicas. Los grupos botánicos que integran los levantamientos de vegetación de la cordillera Occidental reúnen 102 familias, 195 géneros y 294 especies, mientras que los inventarios del norte del país comprenden 79 familias, 158 géneros y 217 especies. Las familias Asteraceae, Poaceae, Cyperaceae, Rosaceae y Ericaceae, destacadas por su riqueza en los páramos evaluados, se caracterizan igualmente por su amplia distribución en las seis subregiones paramunas consideradas, en conjunto con otras angiospermas como Clusiaceae, Geraniaceae, Iridaceae, Melastomataceae, Rubiaceae y Scrophulariaceae. Otros grupos taxonómicos de gran riqueza y distribución son las familias Lycopodiaceae, Polypodiaceae, Pteridaceae (pteridofitas), Dicranaceae, Polytrichaceae (musgos), Jungermanniaceae (hepáticas) y Atheliaceae (líquenes). La vegetación de sectores paramunos como los cerros Pintado y Tres Tetas, la vertiente nororiental de la Sierra Nevada de Santa Marta y el Nudo de Paramillo carecen actualmente de caracterizaciones detalladas. / Abstract. The zonal páramo vegetation of the Colombian Western Cordillera comprises 28 syntaxonomic units including fourteen associations, five subassociations, five alliances and three orders gathered in a single class for the páramo belt of Tatamá and Frontino. Eight of these groups represent amendments of former units formulated for the Cordillera. With regard to the páramos of northern Colombia, formations are summarized in 28 zonal units including fifteen associations, six subassociations, five alliances, one order and one class, in addition to five azonal associations plus one subassociation. Six groups originally proposed for the region were amended, and five ecological communities were formally incorporated as syntaxonomic categories. The vegetation relevés of Western Cordillera consists of 102 families, 195 genera and 294 species, whereas plots of northern Colombia are composed of 79 families, 158 genera and 217 species. Angiosperm families as Asteraceae, Poaceae, Cyperaceae, Rosaceae and Ericaceae are distinguished by its high richness in the study area and its wide distribution among the six páramo subregions considered, as well as Clusiaceae, Geraniaceae,…

Subjects/Keywords: 58 Plantas / Plants

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APA (6^th Edition):

Pinto Zárate, J. H. (2009). La vegetación de la región de vida paramuna colombiana: Con énfasis en la cordillera Occidental y los páramos del norte de Colombia / The vegetation of the Colombian páramo region: With emphasis on the Western cordillera and the páramos of northern Colombia. (Thesis). Universidad Nacional de Colombia. Retrieved from http://www.bdigital.unal.edu.co/8500/1/190189.2009.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Pinto Zárate, Jairo Humberto. “La vegetación de la región de vida paramuna colombiana: Con énfasis en la cordillera Occidental y los páramos del norte de Colombia / The vegetation of the Colombian páramo region: With emphasis on the Western cordillera and the páramos of northern Colombia.” 2009. Thesis, Universidad Nacional de Colombia. Accessed February 28, 2020. http://www.bdigital.unal.edu.co/8500/1/190189.2009.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Pinto Zárate, Jairo Humberto. “La vegetación de la región de vida paramuna colombiana: Con énfasis en la cordillera Occidental y los páramos del norte de Colombia / The vegetation of the Colombian páramo region: With emphasis on the Western cordillera and the páramos of northern Colombia.” 2009. Web. 28 Feb 2020.

Vancouver:

Pinto Zárate JH. La vegetación de la región de vida paramuna colombiana: Con énfasis en la cordillera Occidental y los páramos del norte de Colombia / The vegetation of the Colombian páramo region: With emphasis on the Western cordillera and the páramos of northern Colombia. [Internet] [Thesis]. Universidad Nacional de Colombia; 2009. [cited 2020 Feb 28]. Available from: http://www.bdigital.unal.edu.co/8500/1/190189.2009.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Pinto Zárate JH. La vegetación de la región de vida paramuna colombiana: Con énfasis en la cordillera Occidental y los páramos del norte de Colombia / The vegetation of the Colombian páramo region: With emphasis on the Western cordillera and the páramos of northern Colombia. [Thesis]. Universidad Nacional de Colombia; 2009. Available from: http://www.bdigital.unal.edu.co/8500/1/190189.2009.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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