subject:(host plants)

Rhodes University

1. Ridsdale, Carmen Jane. Interactions of arbuscular mycorrhizal fungi and spore-associated bacteria.

Degree: Faculty of Science, Biochemistry, Microbiology and Biotechnology, 2013, Rhodes University

URL: http://hdl.handle.net/10962/d1018269

► Arbuscular mycorrhizal (AM) fungi are naturally occurring in roots of terrestrial plants. AM fungi are capable of benefiting the host plant through various mechanisms such… (more)

▼ Arbuscular mycorrhizal (AM) fungi are naturally occurring in roots of terrestrial plants. AM fungi are capable of benefiting the host plant through various mechanisms such as enhanced nutrient supply, alleviation of environmental stress and inhibition of plant fungal pathogens. AM fungal spore-associated bacteria have been previously isolated and shown to have plant growthpromoting (PGP) abilities by several authors. Some bacterial isolates are able to promote AM fungal colonisation of host plants and are known to be mycorrhizal helper bacteria (MHB). This study focused on the isolation of AM fungal spore-associated bacteria, characterization of the isolates according to plant growth promoting abilities and evaluation of their potential to enhance plant growth and mycorrhizal colonisation. AM fungi were extracted from soils sampled from natural indigenous forest sources, raspberry (Rubus idaeus cv. Heritage) and strawberry (Fragaria ananassa) farms in South Africa and from a raspberry (Rubus idaeus cv. Autumn Bliss) plantation in Argentina. A total of 52 sporeassociated bacteria were isolated from the external and internal surfaces of AM fungal spore morphotypes from the two countries. The bacterial isolates were evaluated for their PGP abilities such as phosphate solubilisation, indole-3-acetic acid production, ammonia production and inhibition of the fungal pathogens Fusarium oxysporum and Phythophthora nicotianae through mechanisms such as siderophore and/ or hydrolytic enzyme production. A total of 23 bacterial isolates from both South Africa and Argentina showing the most potential to be PGP, were identified molecularly as belonging to the genera Acinetobacter, Alcaligenes, Bacillus, Microbacterium, Micrococcus, Serratia and Staphylococcus. The ability of ten selected bacterial isolates showing multiple PGP capacity were evaluated for their plant growth promotion and mycorrhizal colonisation enhancement ability on raspberry (Rubus idaeus cv. Meeker). Significant differences in increased shoot and root dry weights were shown by the treatments compared to the uninoculated control. The highest increase in shoot and root dry weights were shown by South African (Bacillus mycoides) and Argentinean (Alcaligenes faecalis) isolates. AM fungal colonisation was significantly enhanced by the South African (Bacillus mycoides) and Argentinean (Micrococcus luteus) isolates compared to the AM fungal singly inoculated control.

Subjects/Keywords: Mycorrhizal fungi; Host plants; Bacteria

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Ridsdale, C. J. (2013). Interactions of arbuscular mycorrhizal fungi and spore-associated bacteria. (Thesis). Rhodes University. Retrieved from http://hdl.handle.net/10962/d1018269

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):

Ridsdale, Carmen Jane. “Interactions of arbuscular mycorrhizal fungi and spore-associated bacteria.” 2013. Thesis, Rhodes University. Accessed January 26, 2021. http://hdl.handle.net/10962/d1018269.

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

MLA Handbook (7^th Edition):

Ridsdale, Carmen Jane. “Interactions of arbuscular mycorrhizal fungi and spore-associated bacteria.” 2013. Web. 26 Jan 2021.

Vancouver:

Ridsdale CJ. Interactions of arbuscular mycorrhizal fungi and spore-associated bacteria. [Internet] [Thesis]. Rhodes University; 2013. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/10962/d1018269.

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

Council of Science Editors:

Ridsdale CJ. Interactions of arbuscular mycorrhizal fungi and spore-associated bacteria. [Thesis]. Rhodes University; 2013. Available from: http://hdl.handle.net/10962/d1018269

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

Tartu University

2. Sepp, Siim-Kaarel. Soil eukaryotic community responses to land use and host identity .

Degree: 2020, Tartu University

URL: http://hdl.handle.net/10062/70160

► Mullaelustiku uurimine pole lihtne – lisaks sellele, et maa-alune elu jääb inimese igapäevasest tajuruumist kõrvale, on enamik mullas elutsevaid organisme kas mikroskoopilised või vähemalt piisavalt… (more)

▼ Mullaelustiku uurimine pole lihtne – lisaks sellele, et maa-alune elu jääb inimese igapäevasest tajuruumist kõrvale, on enamik mullas elutsevaid organisme kas mikroskoopilised või vähemalt piisavalt pisikesed, et nende leidmine, rääkimata liikide eristamisest, on keeruline. Õnneks tulevad siinkohal ökoloogidele appi DNA-põhised määramismeetodid. Selle tulemusena on tormiliselt arenema hakanud ökoloogiasuund, kus samaaegselt endisaegsete loodusuurijate tööga – kes kus elab? – uuritakse maapealsel elul põhinevate teooriate paikapidavust ka maa all. Doktoritöö käigus uurisin, kuidas mõjutab inimtegevus ühe olulise maa-aluse elustikurühma – peaaegu 80% maismaa taimeliikidega sümbioosis elavate arbuskulaarmükoriissete (AM) seente – elurikkust nii globaalsel skaalal ning Eestile omastes poollooduslikes kasvukohtades. Leidsin, et inimtegevusest (või selle tegevuse lõpetamisest) tingitud stress mõjutab suuresti koosluste koosseisu, kuid ei pruugi tingimata päädida vaadeldavate organismide liigirikkuse vähenemisega. Kuna liigilist koosseisu võib teatud lähenduses käsitleda koosluse funktsiooni indikaatorina, leidsin, et inimtegevuse mõju hindamiseks ei piisa pelgalt liikide loendamisest. Samuti leidsin, et looduslike ökosüsteemide AM seente liigirikkusele on inimtekkelistel häiringutel vastassuunaline mõju – vaesemates kasvukohtades elurikkust suurendav ning rikkamates vähendav. Puisniidul erinevaid organismirühmi uurides selgus, et inimtegevuse tõttu muutunud kasvukohtades muutuvad samaaegselt ja -suunaliselt mitmed päristuumsed organismirühmad, nii mükoriisaseened kui ka mullas elavad loomad. Lisaks leidsin vastupidiselt ootustele, et vaatamata enamiku taimeliikidega koos elavate AM seente väiksele globaalsele liigirikkusele (maismaa taimeliikide ning AM seeneliikide arvu suhe on umbes 300:1) ei ole taimejuurtesse „komplekteeritud“ AM seeneliikide kogum juhuslik, vaid mükoriisavõrgustikus eelistavad teatud peremeestaimed kindlaid seeneliike (või vastupidi).; Doing research on belowground organisms is troublesome – in addition to being hidden from the everyday perspective on the world, most soil-dwellers are either microscopic or at least small enough to seriously hinder detection and identification. Luckily, recent decades have advanced molecular techniques enough to allow ecologists to delimit organisms based on DNA sequences, and rapid developments in quantifying and making sense of the belowground biosphere are underway. Still, due to the hasty pace in which this field of ecology is evolving – biogeographical works resembling that of early naturalists’ are being conducted in parallel with validating old and generating new ecological principles for soil – much of the results are contradictory and gaps in knowledge can span entire ecosystems. The PhD thesis in hand dealt with global and regional anthropogenic impact on one of the ubiquitous groups of soil organisms – arbuscular mycorrhizal (AM) fungi that form symbiosis with nearly 80% of land plants. We found that stress caused by human influence (or in some cases,… Advisors/Committee Members: Öpik, Maarja, juhendaja (advisor), Zobel, Martin, juhendaja (advisor).

Subjects/Keywords: eukaryotes; land use; host plants

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Sepp, S. (2020). Soil eukaryotic community responses to land use and host identity . (Thesis). Tartu University. Retrieved from http://hdl.handle.net/10062/70160

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):

Sepp, Siim-Kaarel. “Soil eukaryotic community responses to land use and host identity .” 2020. Thesis, Tartu University. Accessed January 26, 2021. http://hdl.handle.net/10062/70160.

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

MLA Handbook (7^th Edition):

Sepp, Siim-Kaarel. “Soil eukaryotic community responses to land use and host identity .” 2020. Web. 26 Jan 2021.

Vancouver:

Sepp S. Soil eukaryotic community responses to land use and host identity . [Internet] [Thesis]. Tartu University; 2020. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/10062/70160.

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

Council of Science Editors:

Sepp S. Soil eukaryotic community responses to land use and host identity . [Thesis]. Tartu University; 2020. Available from: http://hdl.handle.net/10062/70160

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

Texas State University – San Marcos

3. Busbee, Robert Waid. Host Plant and Spatial Influences on the Natural Enemy Community Structure of a Host Specific Insect Herbivore.

Degree: MS, Population and Conservation Biology, 2018, Texas State University – San Marcos

URL: https://digital.library.txstate.edu/handle/10877/10322

► Both environmental variation and spatial autocorrelation play roles in structuring communities at all spatial scales. However, untangling the respective contributions of these sources of variation… (more)

▼ Both environmental variation and spatial autocorrelation play roles in structuring communities at all spatial scales. However, untangling the respective contributions of these sources of variation represents a long-standing, complex, and methodologically ever-evolving question for community ecology. Here I investigate the structure of the insect natural enemy community centered on galls produced by Belonocnema treatae (Hymenoptera: Cynipidae) on the leaves of its host plants across the gall former's geographic range while controlling for spatial autocorrelation among sample sites. Belonocnema treatae exhibits regional host plant specialization across the southern US on three live oak species, Quercus fusiformis (Qf), Quercus virginiana (Qv), and Quercus geminata (Qg). I sampled the natural enemy community at 94 sites by rearing natural enemies that emerged from galls collected at each site. I identified 32,722 natural enemies representing ≥30 taxa from 126,812 galls. I hypothesized that richness and diversity on Qv would exceed that on Qf and Qg since the geographic range of Qv bridges that of Qf to the west and Qg to the east. Contrary to my hypothesis one-way ANOVA followed by a Tukey’s HSD showed that both richness and Shannon-Wiener diversity was greatest on Qf. To disentangle the role of host plant affiliation from spatial autocorrelation among sample sites I conducted a Redundancy Analysis (RDA). I first used Principal Coordinates of Neighbor Matrices (PCNM) to generate explanatory variables representing orthogonal aspects of spatial structure within the sampling frame. The set of PCNM vectors that were significantly correlated with community structure were then included in a RDA along with the host plant species from which each natural enemy was reared to examine the respective roles of host plant association and spatial structure in determining abundance and species composition of the natural enemy community. This study establishes a significant role for both alternative host plants and geography in structuring the diversity of the natural enemy community of B. treatae and illustrates the advantages of the PCNM & RDA approach. Advisors/Committee Members: Ott, James (advisor), Nice, Chris (committee member), Martin, Noland (committee member).

Subjects/Keywords: Conservation biology; Ecology; Host plants

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Busbee, R. W. (2018). Host Plant and Spatial Influences on the Natural Enemy Community Structure of a Host Specific Insect Herbivore. (Masters Thesis). Texas State University – San Marcos. Retrieved from https://digital.library.txstate.edu/handle/10877/10322

Chicago Manual of Style (16^th Edition):

Busbee, Robert Waid. “Host Plant and Spatial Influences on the Natural Enemy Community Structure of a Host Specific Insect Herbivore.” 2018. Masters Thesis, Texas State University – San Marcos. Accessed January 26, 2021. https://digital.library.txstate.edu/handle/10877/10322.

MLA Handbook (7^th Edition):

Busbee, Robert Waid. “Host Plant and Spatial Influences on the Natural Enemy Community Structure of a Host Specific Insect Herbivore.” 2018. Web. 26 Jan 2021.

Vancouver:

Busbee RW. Host Plant and Spatial Influences on the Natural Enemy Community Structure of a Host Specific Insect Herbivore. [Internet] [Masters thesis]. Texas State University – San Marcos; 2018. [cited 2021 Jan 26]. Available from: https://digital.library.txstate.edu/handle/10877/10322.

Council of Science Editors:

Busbee RW. Host Plant and Spatial Influences on the Natural Enemy Community Structure of a Host Specific Insect Herbivore. [Masters Thesis]. Texas State University – San Marcos; 2018. Available from: https://digital.library.txstate.edu/handle/10877/10322

Oregon State University

4. Annis, Barry Alan. Host preferences of green peach aphid and seasonal occurrence of weed hosts at key sites of aphid buildup.

Degree: MS, Entomology, 1979, Oregon State University

URL: http://hdl.handle.net/1957/43085

► Green peach aphid and associated weed populations were monitored continuously from April, 1978 to March, 1979 at three orchards and a drainage ditch. Aphid populations… (more)

Subjects/Keywords: Aphididae – Host plants

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Annis, B. A. (1979). Host preferences of green peach aphid and seasonal occurrence of weed hosts at key sites of aphid buildup. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/43085

Chicago Manual of Style (16^th Edition):

Annis, Barry Alan. “Host preferences of green peach aphid and seasonal occurrence of weed hosts at key sites of aphid buildup.” 1979. Masters Thesis, Oregon State University. Accessed January 26, 2021. http://hdl.handle.net/1957/43085.

MLA Handbook (7^th Edition):

Annis, Barry Alan. “Host preferences of green peach aphid and seasonal occurrence of weed hosts at key sites of aphid buildup.” 1979. Web. 26 Jan 2021.

Vancouver:

Annis BA. Host preferences of green peach aphid and seasonal occurrence of weed hosts at key sites of aphid buildup. [Internet] [Masters thesis]. Oregon State University; 1979. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/1957/43085.

Council of Science Editors:

Annis BA. Host preferences of green peach aphid and seasonal occurrence of weed hosts at key sites of aphid buildup. [Masters Thesis]. Oregon State University; 1979. Available from: http://hdl.handle.net/1957/43085

Michigan State University

5. Bossart, Janice Lynne. Consequences of intraspecific host quality on the ecology of two specialist phytophages, Manduca quinquemaculata and Manduca sexta, (Lepidoptera:Sphingidae).

Degree: MS, Department of Entomology, 1987, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:29409

Subjects/Keywords: Tomato hornworm – Host plants; Tobacco hornworm – Host plants; Host plants

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Bossart, J. L. (1987). Consequences of intraspecific host quality on the ecology of two specialist phytophages, Manduca quinquemaculata and Manduca sexta, (Lepidoptera:Sphingidae). (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:29409

Chicago Manual of Style (16^th Edition):

Bossart, Janice Lynne. “Consequences of intraspecific host quality on the ecology of two specialist phytophages, Manduca quinquemaculata and Manduca sexta, (Lepidoptera:Sphingidae).” 1987. Masters Thesis, Michigan State University. Accessed January 26, 2021. http://etd.lib.msu.edu/islandora/object/etd:29409.

MLA Handbook (7^th Edition):

Bossart, Janice Lynne. “Consequences of intraspecific host quality on the ecology of two specialist phytophages, Manduca quinquemaculata and Manduca sexta, (Lepidoptera:Sphingidae).” 1987. Web. 26 Jan 2021.

Vancouver:

Bossart JL. Consequences of intraspecific host quality on the ecology of two specialist phytophages, Manduca quinquemaculata and Manduca sexta, (Lepidoptera:Sphingidae). [Internet] [Masters thesis]. Michigan State University; 1987. [cited 2021 Jan 26]. Available from: http://etd.lib.msu.edu/islandora/object/etd:29409.

Council of Science Editors:

Bossart JL. Consequences of intraspecific host quality on the ecology of two specialist phytophages, Manduca quinquemaculata and Manduca sexta, (Lepidoptera:Sphingidae). [Masters Thesis]. Michigan State University; 1987. Available from: http://etd.lib.msu.edu/islandora/object/etd:29409

Michigan State University

6. Costamagna, Alejandro Carlos. Agricultural landscape complexity has mixed effects on patterns of parasitoid abundance and diversity.

Degree: MS, Department of Entomology, 2002, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:31821

Subjects/Keywords: Armyworms – Host plants – Michigan; Parasitoids – Host plants – Michigan

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Costamagna, A. C. (2002). Agricultural landscape complexity has mixed effects on patterns of parasitoid abundance and diversity. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:31821

Chicago Manual of Style (16^th Edition):

Costamagna, Alejandro Carlos. “Agricultural landscape complexity has mixed effects on patterns of parasitoid abundance and diversity.” 2002. Masters Thesis, Michigan State University. Accessed January 26, 2021. http://etd.lib.msu.edu/islandora/object/etd:31821.

MLA Handbook (7^th Edition):

Costamagna, Alejandro Carlos. “Agricultural landscape complexity has mixed effects on patterns of parasitoid abundance and diversity.” 2002. Web. 26 Jan 2021.

Vancouver:

Costamagna AC. Agricultural landscape complexity has mixed effects on patterns of parasitoid abundance and diversity. [Internet] [Masters thesis]. Michigan State University; 2002. [cited 2021 Jan 26]. Available from: http://etd.lib.msu.edu/islandora/object/etd:31821.

Council of Science Editors:

Costamagna AC. Agricultural landscape complexity has mixed effects on patterns of parasitoid abundance and diversity. [Masters Thesis]. Michigan State University; 2002. Available from: http://etd.lib.msu.edu/islandora/object/etd:31821

University of Miami

7. Garcia-Robledo, Carlos. Ecology and Evolution of Diet Expansions to Exotic Hosts in Generalist and Specialist Rolled Leaf Beetles (Genus Cephaloleia, Coleoptera; Chrysomelidae).

Degree: PhD, Biology (Arts and Sciences), 2010, University of Miami

URL: https://scholarlyrepository.miami.edu/oa_dissertations/397

► The interactions between plants and their insect herbivores are one of the main generators of biological diversity. A fundamental process generating this outstanding diversity… (more)

▼ The interactions between plants and their insect herbivores are one of the main generators of biological diversity. A fundamental process generating this outstanding diversity is diet expansion to novel host plants. During the last four decades scientists accumulated evidence showing that co-adaptation between plants and herbivores is a major process assembling plant-herbivore interactions. However, rescent research suggests that adaptation is not always a prerequisite to generate novel plant-herbivore interactions. Novel associations between plants and insect herbivores may be assembled by ecological fitting - an ecological process whereby herbivores colonize novel host plants as a result of the suites of preadapted traits that they carry at the time of colonization. A widespread assumption concerning the architecture of insect herbivore genotypes is the "Jack of all trades master of none" principle. This principle proposes that there is a trade-off in genotype performances between host plants. The main prediction of this principle is that genotype performance will be negatively correlated among hosts. Genotypes displaying high performance on a given host will perform poorly on other hosts. This constraint of adaptation to multiple host plants implies that diet specialization will be selected over generalization. Contrary to these theoretical expectations, in most cases, genotypes that perform well in one host will also perform well in other host plants. Positive correlations in cross-host performance represent ecological and evolutionary dynamics opposite to the "Jack of all trades" principle. In this scenario genotypes with high performance on one host plant also have high performance on other plants, promoting generalization. The predictions of the current theory on the assemblage of novel plant-herbivore interactions focus on the fact that most insect herbivores are specialists. However, to fully understand the processes underlying the assembly of novel plant-insect interactions, it is necessary to study diet expansions in both specialist and generalist insect herbivores. This dissertation was performed at La Selva Biological Station, a tropical rain forest in Costa Rica, Central America. We studied a group of neotropical herbivores, the "rolled-leaf beetles" (Cephaloleia, Chrysomelidae: Cassidinae) and their host plants, neotropical plants in the order Zingiberales. Cephaloleia beetles have evolved with neotropical Zingiberales for the last 40-60 MY. Four paleotropical and one South American members of the Zingiberales have been introduced to La Selva during the last decade. After these introductions, currently seven Cephaloleia beetles are expanding their diets to exotic Zingiberales. These incipient diet expansions represent an opportunity to understand: 1) the relative roles of adaptation vs ecological fitting on the demography and colonization success of novel hosts in generalist and specialist herbivores and 2) whether genotypic performance across original and novel hosts are negatively correlated, as… Advisors/Committee Members: Carol C. Horvitz, Barbara A. Whitlock, Theodore H. Fleming, Keith D. Waddington, Douglas J. Futuyma.

Subjects/Keywords: Zingiberales; Novel Host Plants; Herbivory; Exotic Plants; Ecological Fitting; Diet Expansions; Chrysomelidae; Cephaloleia; Adaptation

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Garcia-Robledo, C. (2010). Ecology and Evolution of Diet Expansions to Exotic Hosts in Generalist and Specialist Rolled Leaf Beetles (Genus Cephaloleia, Coleoptera; Chrysomelidae). (Doctoral Dissertation). University of Miami. Retrieved from https://scholarlyrepository.miami.edu/oa_dissertations/397

Chicago Manual of Style (16^th Edition):

Garcia-Robledo, Carlos. “Ecology and Evolution of Diet Expansions to Exotic Hosts in Generalist and Specialist Rolled Leaf Beetles (Genus Cephaloleia, Coleoptera; Chrysomelidae).” 2010. Doctoral Dissertation, University of Miami. Accessed January 26, 2021. https://scholarlyrepository.miami.edu/oa_dissertations/397.

MLA Handbook (7^th Edition):

Garcia-Robledo, Carlos. “Ecology and Evolution of Diet Expansions to Exotic Hosts in Generalist and Specialist Rolled Leaf Beetles (Genus Cephaloleia, Coleoptera; Chrysomelidae).” 2010. Web. 26 Jan 2021.

Vancouver:

Garcia-Robledo C. Ecology and Evolution of Diet Expansions to Exotic Hosts in Generalist and Specialist Rolled Leaf Beetles (Genus Cephaloleia, Coleoptera; Chrysomelidae). [Internet] [Doctoral dissertation]. University of Miami; 2010. [cited 2021 Jan 26]. Available from: https://scholarlyrepository.miami.edu/oa_dissertations/397.

Council of Science Editors:

Garcia-Robledo C. Ecology and Evolution of Diet Expansions to Exotic Hosts in Generalist and Specialist Rolled Leaf Beetles (Genus Cephaloleia, Coleoptera; Chrysomelidae). [Doctoral Dissertation]. University of Miami; 2010. Available from: https://scholarlyrepository.miami.edu/oa_dissertations/397

University of Pretoria

8. [No author]. Tracking nucleotide-binding-site-leucine-rich-repeat resistance gene analogues in the wheat genome complex .

Degree: 2008, University of Pretoria

URL: http://upetd.up.ac.za/thesis/available/etd-08192008-075009/

► Investigations into plant-pathogen interactions have provided us with several models underlying the genetic basis of host resistance in plants. In the past decade, tens of… (more)

▼ Investigations into plant-pathogen interactions have provided us with several models underlying the genetic basis of host resistance in plants. In the past decade, tens of resistance genes have been isolated from numerous crop and model plant species and these form a few distinct classes when classified by domain structure, the majority being nucleotide-bindingsite- leucine-rich-repeat (NBS-LRR) genes. The NBS-LRR family consists of two sub-families based on the N-terminal domain: the coiled-coil (CC) NBS-LRRs and the Toll Interleukin Receptor homology domain (TIR) NBS-LRRs. The potential of these genes for future and current agricultural breeding programs has driven a large number of studies exploring the members of these gene families in the genomes of a variety of crop species. In the present study I focused on the NBS-LRR family in the allohexaploid wheat genome and obtained a comprehensive set of Triticeae NBS-LRR homologues using a combination of data-mining approaches. As starting point I detected conserved motifs in the dataset, finding all six previously characterized in the core-NBS domain of other plant NBS-LRRs. Phylogenetic analysis was performed to study relationships between the Triticeae NBS-LRR family and the 25 CC-NBS-LRR (CNL) R genes identified to date. I found the Triticeae CNL family to be highly divergent, containing ancient clade lineages, as seen in all angiosperm 120 taxa previously studied, and found a number of “ancient” dicotyl R genes grouped with Triticeae clades. The evolution of recent NBS-LRR gene duplications in the Triticeae was studied at the hand of two modes of duplication - firstly individual gene duplications yielding paralogous loci and secondly gene duplication by allopolyploidy. Current models of NBS-LRR family evolution predict that functional divergence occurs after gene duplication. An alternative is that divergence takes place at allele level, followed by a locus duplication that fixes heterozygosity in a single haplotype by unequal recombination. I investigated this hypothesis by studying the evolution of gene duplicates in two different contexts – paralogous duplications in the diploid barley genome and homeologous duplications in the allohexaploid genome of wheat. Nonsynonymous to synonymous substitution rate ratios were estimated for paralogous gene duplications in three recently diverged NBS-LRR clades. All pairwise comparisons yielded Ka:Ks ratios strongly indicative of purifying selection. Given that R gene mediated resistance is inherited qualitatively rather than quantitatively, I interpret this as evidence that even closely related paralogous copies (90-95% identity) should have independent recognition specificities maintained by purifying selection. Homeologous duplications were studied in allohexaploid wheat (AABBDD) using a section of the go35 NBS-LRR gene (2L) of the B and D diploid donor species of wheat. Numerous synonymous substitutions distinguished the B and D genome copies, with an absence of nonsynonymous substitutions. In contrast, single unique… Advisors/Committee Members: Prof A-M Botha-Oberholster (advisor), Prof A A Myburg (advisor).

Subjects/Keywords: Plant-pathogen interactions; Host resistance in plants; Triticeae; UCTD

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

author], [. (2008). Tracking nucleotide-binding-site-leucine-rich-repeat resistance gene analogues in the wheat genome complex . (Masters Thesis). University of Pretoria. Retrieved from http://upetd.up.ac.za/thesis/available/etd-08192008-075009/

Chicago Manual of Style (16^th Edition):

author], [No. “Tracking nucleotide-binding-site-leucine-rich-repeat resistance gene analogues in the wheat genome complex .” 2008. Masters Thesis, University of Pretoria. Accessed January 26, 2021. http://upetd.up.ac.za/thesis/available/etd-08192008-075009/.

MLA Handbook (7^th Edition):

author], [No. “Tracking nucleotide-binding-site-leucine-rich-repeat resistance gene analogues in the wheat genome complex .” 2008. Web. 26 Jan 2021.

Vancouver:

author] [. Tracking nucleotide-binding-site-leucine-rich-repeat resistance gene analogues in the wheat genome complex . [Internet] [Masters thesis]. University of Pretoria; 2008. [cited 2021 Jan 26]. Available from: http://upetd.up.ac.za/thesis/available/etd-08192008-075009/.

Council of Science Editors:

author] [. Tracking nucleotide-binding-site-leucine-rich-repeat resistance gene analogues in the wheat genome complex . [Masters Thesis]. University of Pretoria; 2008. Available from: http://upetd.up.ac.za/thesis/available/etd-08192008-075009/

University of Pretoria

9. Du Preez, Franco Bauer. Tracking nucleotide-binding-site-leucine-rich-repeat resistance gene analogues in the wheat genome complex.

Degree: Genetics, 2008, University of Pretoria

URL: http://hdl.handle.net/2263/27375

► Investigations into plant-pathogen interactions have provided us with several models underlying the genetic basis of host resistance in plants. In the past decade, tens of… (more)

▼ Investigations into plant-pathogen interactions have provided us with several models underlying the genetic basis of host resistance in plants. In the past decade, tens of resistance genes have been isolated from numerous crop and model plant species and these form a few distinct classes when classified by domain structure, the majority being nucleotide-bindingsite- leucine-rich-repeat (NBS-LRR) genes. The NBS-LRR family consists of two sub-families based on the N-terminal domain: the coiled-coil (CC) NBS-LRRs and the Toll Interleukin Receptor homology domain (TIR) NBS-LRRs. The potential of these genes for future and current agricultural breeding programs has driven a large number of studies exploring the members of these gene families in the genomes of a variety of crop species. In the present study I focused on the NBS-LRR family in the allohexaploid wheat genome and obtained a comprehensive set of Triticeae NBS-LRR homologues using a combination of data-mining approaches. As starting point I detected conserved motifs in the dataset, finding all six previously characterized in the core-NBS domain of other plant NBS-LRRs. Phylogenetic analysis was performed to study relationships between the Triticeae NBS-LRR family and the 25 CC-NBS-LRR (CNL) R genes identified to date. I found the Triticeae CNL family to be highly divergent, containing ancient clade lineages, as seen in all angiosperm 120 taxa previously studied, and found a number of “ancient” dicotyl R genes grouped with Triticeae clades. The evolution of recent NBS-LRR gene duplications in the Triticeae was studied at the hand of two modes of duplication - firstly individual gene duplications yielding paralogous loci and secondly gene duplication by allopolyploidy. Current models of NBS-LRR family evolution predict that functional divergence occurs after gene duplication. An alternative is that divergence takes place at allele level, followed by a locus duplication that fixes heterozygosity in a single haplotype by unequal recombination. I investigated this hypothesis by studying the evolution of gene duplicates in two different contexts – paralogous duplications in the diploid barley genome and homeologous duplications in the allohexaploid genome of wheat. Nonsynonymous to synonymous substitution rate ratios were estimated for paralogous gene duplications in three recently diverged NBS-LRR clades. All pairwise comparisons yielded Ka:Ks ratios strongly indicative of purifying selection. Given that R gene mediated resistance is inherited qualitatively rather than quantitatively, I interpret this as evidence that even closely related paralogous copies (90-95% identity) should have independent recognition specificities maintained by purifying selection. Homeologous duplications were studied in allohexaploid wheat (AABBDD) using a section of the go35 NBS-LRR gene (2L) of the B and D diploid donor species of wheat. Numerous synonymous substitutions distinguished the B and D genome copies, with an absence of nonsynonymous substitutions. In contrast, single unique… Advisors/Committee Members: Prof A-M Botha-Oberholster (advisor), Prof A A Myburg (advisor).

Subjects/Keywords: Plant-pathogen interactions; Host resistance in plants; Triticeae; UCTD

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Du Preez, F. (2008). Tracking nucleotide-binding-site-leucine-rich-repeat resistance gene analogues in the wheat genome complex. (Masters Thesis). University of Pretoria. Retrieved from http://hdl.handle.net/2263/27375

Chicago Manual of Style (16^th Edition):

Du Preez, Franco. “Tracking nucleotide-binding-site-leucine-rich-repeat resistance gene analogues in the wheat genome complex.” 2008. Masters Thesis, University of Pretoria. Accessed January 26, 2021. http://hdl.handle.net/2263/27375.

MLA Handbook (7^th Edition):

Du Preez, Franco. “Tracking nucleotide-binding-site-leucine-rich-repeat resistance gene analogues in the wheat genome complex.” 2008. Web. 26 Jan 2021.

Vancouver:

Du Preez F. Tracking nucleotide-binding-site-leucine-rich-repeat resistance gene analogues in the wheat genome complex. [Internet] [Masters thesis]. University of Pretoria; 2008. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/2263/27375.

Council of Science Editors:

Du Preez F. Tracking nucleotide-binding-site-leucine-rich-repeat resistance gene analogues in the wheat genome complex. [Masters Thesis]. University of Pretoria; 2008. Available from: http://hdl.handle.net/2263/27375

Oregon State University

10. Panasahatham, Sarote. Biology, ecology and management of Scaptomyza apicalis Hardy (Diptera: Drosophilidae) on meadowfoam, Limnanthes alba benth in western Oregon.

Degree: PhD, Ecology, 2000, Oregon State University

URL: http://hdl.handle.net/1957/32508

► Biology of Scaptomyza apicalis Hardy (Diptera: Drosophilidae) was studied in relation to its host, meadowfoam, Limnanthes alba, a recent oil seed crop grown in the… (more)

▼ Biology of Scaptomyza apicalis Hardy (Diptera: Drosophilidae) was studied in relation to its host, meadowfoam, Limnanthes alba, a recent oil seed crop grown in the Willamette Valley, Oregon. Populations of flies and larvae were monitored weekly over three consecutive crop-years beginning in 1996. Yellow sticky traps gave relative population estimates of adults. Absolute estimates of larval populations were derived using Berlese funnels to extract immatures from whole plant samples. Weather and crop phenology are key factors in population regulation. Meadowfoams, Limnanthes species, were the only observed hosts for S. apicalis in this study. This has four to five overlapping generations per year. Adults of a small founder population colonize commercial fields coincident with fall rains and seedling emergence. Females deposit eggs in or on plant tissue. Larvae mine leaves and stems. They also bore into crown tissue and flower buds later in the season. Second generation flies arising from the larvae of the founder population first appear in late winter. Successive generations peak during the rapid vegetative growth stage of meadowfoam (mid-April). A steady decline in adult and larval numbers occurs as daily temperatures rise and plants develop flower buds. Last flies are detected in early July when meadowfoam is harvested. Temperatures below 0° Celsius during December were a key mortality factor for S. apicalis in 1998. Three often major weather components analyzed, accounted for up to 60 percent of the trap count variability. These components were temperature, solar radiation and relative humidity. S. apicalis larvae fed only on plants within the Limnanthes in feeding studies. They accepted nine native meadowfoams but with varying survival rates. The commercial meadowfoam cultivar, Floral, was the most suitable larval host. An increase in supplemental nitrogen fertilizer rates generally resulted in increased infestations of S. apicalis and decreased seed yields. Advisors/Committee Members: Fisher, Glenn C. (advisor), Merrill, Gary F. (committee member).

Subjects/Keywords: Scaptomyza – Host plants – Oregon

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Panasahatham, S. (2000). Biology, ecology and management of Scaptomyza apicalis Hardy (Diptera: Drosophilidae) on meadowfoam, Limnanthes alba benth in western Oregon. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/32508

Chicago Manual of Style (16^th Edition):

Panasahatham, Sarote. “Biology, ecology and management of Scaptomyza apicalis Hardy (Diptera: Drosophilidae) on meadowfoam, Limnanthes alba benth in western Oregon.” 2000. Doctoral Dissertation, Oregon State University. Accessed January 26, 2021. http://hdl.handle.net/1957/32508.

MLA Handbook (7^th Edition):

Panasahatham, Sarote. “Biology, ecology and management of Scaptomyza apicalis Hardy (Diptera: Drosophilidae) on meadowfoam, Limnanthes alba benth in western Oregon.” 2000. Web. 26 Jan 2021.

Vancouver:

Panasahatham S. Biology, ecology and management of Scaptomyza apicalis Hardy (Diptera: Drosophilidae) on meadowfoam, Limnanthes alba benth in western Oregon. [Internet] [Doctoral dissertation]. Oregon State University; 2000. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/1957/32508.

Council of Science Editors:

Panasahatham S. Biology, ecology and management of Scaptomyza apicalis Hardy (Diptera: Drosophilidae) on meadowfoam, Limnanthes alba benth in western Oregon. [Doctoral Dissertation]. Oregon State University; 2000. Available from: http://hdl.handle.net/1957/32508

11. Kumar, Anil. Effect of different host plants on the development of spilosoma obliqua w alkeb lepidoptera : arctiidae and its control by chemicals; -.

Degree: zoology, 1996, Pt. Ravishankar Shukla University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/30104

None

Bibliography p.95 - 114

Advisors/Committee Members: Ashfaque, M.

Subjects/Keywords: host plants; development of spilosoma

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Kumar, A. (1996). Effect of different host plants on the development of spilosoma obliqua w alkeb lepidoptera : arctiidae and its control by chemicals; -. (Thesis). Pt. Ravishankar Shukla University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/30104

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):

Kumar, Anil. “Effect of different host plants on the development of spilosoma obliqua w alkeb lepidoptera : arctiidae and its control by chemicals; -.” 1996. Thesis, Pt. Ravishankar Shukla University. Accessed January 26, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/30104.

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

MLA Handbook (7^th Edition):

Kumar, Anil. “Effect of different host plants on the development of spilosoma obliqua w alkeb lepidoptera : arctiidae and its control by chemicals; -.” 1996. Web. 26 Jan 2021.

Vancouver:

Kumar A. Effect of different host plants on the development of spilosoma obliqua w alkeb lepidoptera : arctiidae and its control by chemicals; -. [Internet] [Thesis]. Pt. Ravishankar Shukla University; 1996. [cited 2021 Jan 26]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/30104.

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

Council of Science Editors:

Kumar A. Effect of different host plants on the development of spilosoma obliqua w alkeb lepidoptera : arctiidae and its control by chemicals; -. [Thesis]. Pt. Ravishankar Shukla University; 1996. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/30104

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

Rhodes University

12. Grant, Susan. The influence of ants on the insect fauna of broad-leaved, savanna trees.

Degree: Faculty of Science, Zoology and Entomology, 1985, Rhodes University

URL: http://hdl.handle.net/10962/d1006971

► The influence of foraging ants on the insect fauna within the canopy of the tree species Terminalia sericea, Burkea africana and Ochna pulchra was studied… (more)

▼ The influence of foraging ants on the insect fauna within the canopy of the tree species Terminalia sericea, Burkea africana and Ochna pulchra was studied in an area of typical South African savanna, over a two year period. The number of individual insects and their species composition was compared on unbanded, ant-infested plants and on banded plants where ants had been excluded. Differences in the level of herbivory recorded on banded and unbanded trees were related to the guild composition of insects within the canopy, and the results are discussed in terms of plant protection as a consequence of ant - insect interactions. Twenty-six ant species were recorded on the study trees at Nylsvley, with individuals belonging to the genus Crematogaster being numerically abundant and dominant within the canopy of each species of tree. These dominant ant species influenced the insect fauna by their strong dependence on honeydew, encouraging a build up in numbers of Homoptera on the branches and leaves of foraged trees, and supporting homopterous populations within the confines of their nest compartments . The exclusion of ants from trees led to fewer "mobile" homopterans (Aphididae, Membracidae, Psyllidae and Cicadellidae) and "sessile" homopterans (mainly Coccidae but also Pseudococcidae). Pyrethrum spraying showed that the guild composition of non-homopterous insects was similar on banded and unbanded trees. Differences in the level of herbivory on banded and unbanded trees suggested that, although slight, foraged trees were protected from some damage by the presence of ant species within the canopy. A trend did exist towards a greater number of insect individuals and species on unbanded trees, and it is postulated that during the period 1982 1984 when drought conditions prevailed over Nylsvley, ants do not reduce insect numbers through predation or disturbance but simply deter phyllophagous feeding. A separate experiment showed that Crematogaster constructor would feed on the eggs and early instar larvae of the saturnid moth, Cirina forda, but low numbers of lepidopterous larvae on the trees may have forced ants to seek honeydew. The negative impact of large homopterous populations on foraged trees was only seen in an isolated field observation where Polyrachis schistacea was found to associate with the lac insect Tachardina sp . . In conclusion it can be said that where homopterans are not the dominant phyllophages, plants do benefit from foraging populations of ants in that damage to the leaves is reduced.

Subjects/Keywords: Ants – Behavior; Insects – Host plants

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Grant, S. (1985). The influence of ants on the insect fauna of broad-leaved, savanna trees. (Thesis). Rhodes University. Retrieved from http://hdl.handle.net/10962/d1006971

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):

Grant, Susan. “The influence of ants on the insect fauna of broad-leaved, savanna trees.” 1985. Thesis, Rhodes University. Accessed January 26, 2021. http://hdl.handle.net/10962/d1006971.

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

MLA Handbook (7^th Edition):

Grant, Susan. “The influence of ants on the insect fauna of broad-leaved, savanna trees.” 1985. Web. 26 Jan 2021.

Vancouver:

Grant S. The influence of ants on the insect fauna of broad-leaved, savanna trees. [Internet] [Thesis]. Rhodes University; 1985. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/10962/d1006971.

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

Council of Science Editors:

Grant S. The influence of ants on the insect fauna of broad-leaved, savanna trees. [Thesis]. Rhodes University; 1985. Available from: http://hdl.handle.net/10962/d1006971

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

University of KwaZulu-Natal

13. Egli, Daniella. Native range studies on insect herbivores associated with fireweed (Senecio madagascariensis) in KwaZulu-Natal, South Africa, with prospects for biological control in invaded countries.

Degree: 2017, University of KwaZulu-Natal

URL: https://researchspace.ukzn.ac.za/handle/10413/16276

► Senecio madagascariensis Poir. (fireweed; Asteraceae), native to southern Africa and Madagascar, has invaded Australia, Hawaii, South America and Japan, reducing pastoral productivity and poisoning livestock.… (more)

▼ Senecio madagascariensis Poir. (fireweed; Asteraceae), native to southern Africa and Madagascar, has invaded Australia, Hawaii, South America and Japan, reducing pastoral productivity and poisoning livestock. Interest in biological control by Australia and Hawaii led to initial surveys for potential insect agents in Madagascar. However, molecular evidence revealed that both the Australian and Hawaiian populations originated from KwaZulu-Natal Province, South Africa. Efforts to find suitable biocontrol agents have since been focussed within this region. Studies on potential biocontrol agents in the weed’s native range, which consider its centre of origin, closely related plants and seasonal variation in the abundance of its natural enemies, can provide valuable information for selecting host specific and effective agents. This study aimed to prioritise potential insect agents for Australia and determine their response to possible changes in alkaloid concentrations in plants from within the invaded Australian range. The insect herbivore fauna associated with S. madagascariensis was quantitatively surveyed across 21 sites in KwaZulu-Natal to provide a comprehensive list of herbivores and identify potential agents. A total of 64 herbivorous taxa were recorded. Many of these were recorded rarely, but at least 17 taxa were considered as potential agents having been successful in previous biological control programs. Of these, the most promising were a capitulum feeder (Lepidoptera: Pyralidae), three stem borers (Coleoptera: Curculionidae; Diptera: Tephritidae; Lepidoptera: Tortricidae) and a root-feeding flea beetle (Coleoptera: Chrysomelidae: Alticinae). Biological control programs are more successful when agents attack the target plants throughout the year. The abundance of the insects associated with S. madagascariensis was sampled once per season at two sites in Pietermaritzburg to determine which are present throughout the year and are thus capable of inflicting sustained damage. There was significant seasonal variation in the abundances of the main insect taxa. Of the most promising potential agents, four were recovered all year round, two during three seasons, two during two seasons and one during summer only. Releasing a complement of natural enemies that attack the plant at different times may thus be required to ensure that S. madagascariensis is attacked throughout the year. A number of invasive Asteraceae have been targeted for biological control. An evaluation of the successes and failures of different insect taxa and feeding guilds used in previous programs was carried out to prioritise agents that are most likely to be successful on fireweed. The most effective insect taxa for the biocontrol of species of Asteraceae were Coleoptera (Curculionidae and Chrysomelidae) and Lepidoptera (Pterophoridae and Tortricidae), while root-feeding and stem-feeding species were the most effective guilds. This verified that the root-feeding flea beetle (Chrysomelidae), stem-boring moth (Tortricidae) and stem-boring weevil… Advisors/Committee Members: Olckers, Terence. (advisor), Harvey, Kerinne Jean-Maree. (advisor).

Subjects/Keywords: Agent selection.; DNA barcoding.; Field host range.; Invasive plants.; Phytophagous insects.

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Egli, D. (2017). Native range studies on insect herbivores associated with fireweed (Senecio madagascariensis) in KwaZulu-Natal, South Africa, with prospects for biological control in invaded countries. (Thesis). University of KwaZulu-Natal. Retrieved from https://researchspace.ukzn.ac.za/handle/10413/16276

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):

Egli, Daniella. “Native range studies on insect herbivores associated with fireweed (Senecio madagascariensis) in KwaZulu-Natal, South Africa, with prospects for biological control in invaded countries.” 2017. Thesis, University of KwaZulu-Natal. Accessed January 26, 2021. https://researchspace.ukzn.ac.za/handle/10413/16276.

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

MLA Handbook (7^th Edition):

Egli, Daniella. “Native range studies on insect herbivores associated with fireweed (Senecio madagascariensis) in KwaZulu-Natal, South Africa, with prospects for biological control in invaded countries.” 2017. Web. 26 Jan 2021.

Vancouver:

Egli D. Native range studies on insect herbivores associated with fireweed (Senecio madagascariensis) in KwaZulu-Natal, South Africa, with prospects for biological control in invaded countries. [Internet] [Thesis]. University of KwaZulu-Natal; 2017. [cited 2021 Jan 26]. Available from: https://researchspace.ukzn.ac.za/handle/10413/16276.

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

Council of Science Editors:

Egli D. Native range studies on insect herbivores associated with fireweed (Senecio madagascariensis) in KwaZulu-Natal, South Africa, with prospects for biological control in invaded countries. [Thesis]. University of KwaZulu-Natal; 2017. Available from: https://researchspace.ukzn.ac.za/handle/10413/16276

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

Technical University of Lisbon

14. Matos, Sónia Maria Gomes. Biologia e plantas hospedeiras de uma nova espécie galícola de eucaliptos em Portugal - Ophelimus SP.

Degree: 2014, Technical University of Lisbon

URL: https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/8285

►

Mestrado em Engenharia Florestal e dos Recursos Naturais - Instituto Superior de Agronomia

In 2013, a new Ophelimus sp. was detected in a Eucalyptus arboretum… (more)

Subjects/Keywords: Ophelimus sp.; Eucalyptus; gall wasp; host plants; invasive species; Closterocerus chamaeleon

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Matos, S. M. G. (2014). Biologia e plantas hospedeiras de uma nova espécie galícola de eucaliptos em Portugal - Ophelimus SP. (Thesis). Technical University of Lisbon. Retrieved from https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/8285

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):

Matos, Sónia Maria Gomes. “Biologia e plantas hospedeiras de uma nova espécie galícola de eucaliptos em Portugal - Ophelimus SP.” 2014. Thesis, Technical University of Lisbon. Accessed January 26, 2021. https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/8285.

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

MLA Handbook (7^th Edition):

Matos, Sónia Maria Gomes. “Biologia e plantas hospedeiras de uma nova espécie galícola de eucaliptos em Portugal - Ophelimus SP.” 2014. Web. 26 Jan 2021.

Vancouver:

Matos SMG. Biologia e plantas hospedeiras de uma nova espécie galícola de eucaliptos em Portugal - Ophelimus SP. [Internet] [Thesis]. Technical University of Lisbon; 2014. [cited 2021 Jan 26]. Available from: https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/8285.

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

Council of Science Editors:

Matos SMG. Biologia e plantas hospedeiras de uma nova espécie galícola de eucaliptos em Portugal - Ophelimus SP. [Thesis]. Technical University of Lisbon; 2014. Available from: https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/8285

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

Univerzitet u Beogradu

15. Gavrilović, Bojan D., 1982-. Fauna Chrysomelidae (Coleoptera) Obedske bare i Fruške gore.

Degree: Biološki fakultet, 2014, Univerzitet u Beogradu

URL: https://fedorabg.bg.ac.rs/fedora/get/o:7162/bdef:Content/get

►

Datum odbrane: 09.03.2012.

Familija Chrysomelidae u svetu obuhvata preko 35000 vrsta, a od toga preko 400 vrsta živi u Srbiji. Ovo je jedna od najbrojnijih… (more)

▼

Datum odbrane: 09.03.2012.

Familija Chrysomelidae u svetu obuhvata preko 35000 vrsta, a od toga preko 400 vrsta živi u Srbiji. Ovo je jedna od najbrojnijih grupa insekata u našoj zemlji. Gotovo se sve vrste u stadijumu larve i imaga hrane biljkama. Veliki je broj ekonomski značajnih vrsta. Medjutim, i pored velikog značaja u prirodi i za čoveka i velike brojnosti ova grupa je u Srbiji veoma slabo istražena. Zbog toga pravo stanje faune Chrysomelidae u našoj zemlji još uvek nije dovoljno poznato. Analizirana je fauna ove grupe na prostoru Vojvodine, u oblasti Srema na dve različite fizičko-geografske celine – Obedskoj bari i Fruškoj gori. Obedska bara je vlažno stanište, napušteni meandar reke Save koji se nalazi u jugoistočnom delu Srema. Fruška gora je planinski venac koji dominira u reljefu Vojvodine i nalazi se u severnom delu Srema. Ova dva šira lokaliteta su izabrana zbog raznovrsnosti staništa i kompleksnih biocenoloških odlika. Različiti elementi flore koji se javljaju na ova dva lokaliteta omogućavaju formiranje različitih zajednica herbivornih insekata, a izmedju ostalog utiču i na kompoziciju vrsta Chrysomelidae. Istraživanja su sprovedena u periodu od 2001-2010. godine na velikom broju užih lokaliteta – 15 različitih tipova staništa na Obedskoj bari i preko 35 užih lokaliteta na Fruškoj gori. Konstatovano je ukupno 100 vrsta iz 36 rodova i 10 podfamilija Chrysomelidae. Prikupljene su vrste iz 10 podfamilija – Alticinae, Cassidinae, Chrysomelinae, Clytrinae, Criocerinae, Cryptocephalinae, Donaciinae, Eumolpinae, Galerucinae i Orsodacninae. Iz podfamilije Alticinae prikupljeno je 28 vrsta iz 10 rodova. U okviru Cassidinae zabeleženo je 10 vrsta iz 3 roda. Chrysomelinae su zastupljene sa 22 vrste iz 8 rodova. Podfamilija Clytrinae na ispitivanim lokalitetima obuhvata 12 vrsta iz 5 rodova. Criocerinae su zastupljene sa 5 vrsta iz 3 roda. Iz podfamilije Cryptocephalinae je prikupljeno 13 vrsta iz 2 roda. Podfamilije Donaciinae i Eumolpinae su prisutne sa po jednom vrstom iz jednog roda. Galerucinae obuhvataju 7 vrsta iz 3 roda. Orsodacninae su zastupljene sa jednom vrstom iz jednog roda. Na Obedskoj bari je zabeleženo prisustvo 56 vrsta iz 25 rodova i 9 podfamilija, a na Fruškoj gori 73 vrste iz 31 roda i 9 podfamilija. Chrysomelidae su sakupljene sa ukupno 144 vrste biljaka iz 109 rodova i 33 familije (27 familija Magnoliopsida i 6 familija Liliopsida). Za sve vrste u radu su prikazane i njihove biljke hraniteljke. Najveći broj hrizomelida je sakupljen sa biljaka koje pripadaju velikim familijama, kao što su Lamiaceae, Asteraceae, Poaceae i Rosaceae. U ishrani Chrysomelidae Obedske bare i Fruške gore dominiraju zeljaste biljke. Mada se neke vrste hrane listovima, stabljikama i korenjem Poaceae, veliki broj Chrysomelidae koristi polen biljaka ove familije kao dopunski vid ishrane. Salicaceae su omiljena hrana brojnih vrsta podfamilija Clytrinae i nekih Alticinae i Chrysomelinae. Veliki broj Alticinae se hrani biljkama familije Brassicaceae. U okviru faunističke obrade materijala za svaku vrstu je dato njeno…

Advisors/Committee Members: Ćurčić, Srećko, 1976-.

Subjects/Keywords: Chrysomelidae; Serbia; diversity; host plants; biogeography; economical importance

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Gavrilović, Bojan D., 1. (2014). Fauna Chrysomelidae (Coleoptera) Obedske bare i Fruške gore. (Thesis). Univerzitet u Beogradu. Retrieved from https://fedorabg.bg.ac.rs/fedora/get/o:7162/bdef:Content/get

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):

Gavrilović, Bojan D., 1982-. “Fauna Chrysomelidae (Coleoptera) Obedske bare i Fruške gore.” 2014. Thesis, Univerzitet u Beogradu. Accessed January 26, 2021. https://fedorabg.bg.ac.rs/fedora/get/o:7162/bdef:Content/get.

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

MLA Handbook (7^th Edition):

Gavrilović, Bojan D., 1982-. “Fauna Chrysomelidae (Coleoptera) Obedske bare i Fruške gore.” 2014. Web. 26 Jan 2021.

Vancouver:

Gavrilović, Bojan D. 1. Fauna Chrysomelidae (Coleoptera) Obedske bare i Fruške gore. [Internet] [Thesis]. Univerzitet u Beogradu; 2014. [cited 2021 Jan 26]. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:7162/bdef:Content/get.

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

Council of Science Editors:

Gavrilović, Bojan D. 1. Fauna Chrysomelidae (Coleoptera) Obedske bare i Fruške gore. [Thesis]. Univerzitet u Beogradu; 2014. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:7162/bdef:Content/get

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

Michigan State University

16. Frankfater, Cheryl R. (Cheryl Ruth). Phytochemical basis for host plant selection by generalist and specialist swallowtail butterflies.

Degree: MS, Department of Entomology, 1996, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:24566

Subjects/Keywords: Papilionidae; Insects – Host plants

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Frankfater, C. R. (. R. (1996). Phytochemical basis for host plant selection by generalist and specialist swallowtail butterflies. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:24566

Chicago Manual of Style (16^th Edition):

Frankfater, Cheryl R (Cheryl Ruth). “Phytochemical basis for host plant selection by generalist and specialist swallowtail butterflies.” 1996. Masters Thesis, Michigan State University. Accessed January 26, 2021. http://etd.lib.msu.edu/islandora/object/etd:24566.

MLA Handbook (7^th Edition):

Frankfater, Cheryl R (Cheryl Ruth). “Phytochemical basis for host plant selection by generalist and specialist swallowtail butterflies.” 1996. Web. 26 Jan 2021.

Vancouver:

Frankfater CR(R. Phytochemical basis for host plant selection by generalist and specialist swallowtail butterflies. [Internet] [Masters thesis]. Michigan State University; 1996. [cited 2021 Jan 26]. Available from: http://etd.lib.msu.edu/islandora/object/etd:24566.

Council of Science Editors:

Frankfater CR(R. Phytochemical basis for host plant selection by generalist and specialist swallowtail butterflies. [Masters Thesis]. Michigan State University; 1996. Available from: http://etd.lib.msu.edu/islandora/object/etd:24566

University of Arizona

17. Fellows, David Porter, 1940-. COMPETITIVE AND NUTRITIVE ASPECTS OF HOST PLANT SELECTION IN DESERT-ADAPTED CACTIPHILIC DROSOPHILA .

Degree: 1970, University of Arizona

URL: http://hdl.handle.net/10150/287574

Subjects/Keywords: Flies.; Host plants.; Cactus.

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Fellows, David Porter, 1. (1970). COMPETITIVE AND NUTRITIVE ASPECTS OF HOST PLANT SELECTION IN DESERT-ADAPTED CACTIPHILIC DROSOPHILA . (Doctoral Dissertation). University of Arizona. Retrieved from http://hdl.handle.net/10150/287574

Chicago Manual of Style (16^th Edition):

Fellows, David Porter, 1940-. “COMPETITIVE AND NUTRITIVE ASPECTS OF HOST PLANT SELECTION IN DESERT-ADAPTED CACTIPHILIC DROSOPHILA .” 1970. Doctoral Dissertation, University of Arizona. Accessed January 26, 2021. http://hdl.handle.net/10150/287574.

MLA Handbook (7^th Edition):

Fellows, David Porter, 1940-. “COMPETITIVE AND NUTRITIVE ASPECTS OF HOST PLANT SELECTION IN DESERT-ADAPTED CACTIPHILIC DROSOPHILA .” 1970. Web. 26 Jan 2021.

Vancouver:

Fellows, David Porter 1. COMPETITIVE AND NUTRITIVE ASPECTS OF HOST PLANT SELECTION IN DESERT-ADAPTED CACTIPHILIC DROSOPHILA . [Internet] [Doctoral dissertation]. University of Arizona; 1970. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/10150/287574.

Council of Science Editors:

Fellows, David Porter 1. COMPETITIVE AND NUTRITIVE ASPECTS OF HOST PLANT SELECTION IN DESERT-ADAPTED CACTIPHILIC DROSOPHILA . [Doctoral Dissertation]. University of Arizona; 1970. Available from: http://hdl.handle.net/10150/287574

Virginia Tech

18. Shrader, Meredith Edana. Drosophila suzukii (Matsumura) (Diptera: Drosphilidae): Risk Assessment For An Invasive Vinegar Fly In Virginia Vineyards.

Degree: PhD, Entomology, 2017, Virginia Tech

URL: http://hdl.handle.net/10919/86414

► Drosophila suzukii (Matsumura) (Diptera: Drosophila) is an invasive frugivore and has become a significant pest of small fruit, cherry and grape throughout the United States.… (more)

▼ Drosophila suzukii (Matsumura) (Diptera: Drosophila) is an invasive frugivore and has become a significant pest of small fruit, cherry and grape throughout the United States. It may be possible to determine if a Virginia vineyard is at risk of D. suzukii infestation by analyzing the biotic and abiotic factors around each vineyard. This pest is known to utilize a wide range of cultivated and wild host plants. A host plant survey was conducted at four vineyards in the Piedmont Region of Virginia to identify hosts used by D. suzukii around vineyards. The seasonal availability of host plants and adult emergence from them were tracked. Six host plant species of D. suzukii were identified, some available season-long. Monitoring D. suzukii in cultivated crops is crucial for the timing of spray applications. Homemade and commercially available baits and traps were deployed in two vineyards to determine the efficacy and selectivity towards D. suzukii. The homemade and commercially available baits that contained red wine caught the most D. suzukii, but none were exclusively attractive to D. suzukii. Wine grape susceptibility was assessed in laboratory choice and no-choice ovipositional bioassays. Ovipositional susceptibility was determined by measuring the physiological and morphological parameters using six wine grape varieties. More eggs were laid in grapes as penetration force decreased. Penetration force and not skin thickness was the limiting factor for oviposition. Survivorship of eggs laid in intact grapes was analyzed and survivorship to adulthood was dependent upon variety and survivorship usually exceeded 9% survival seen in previous studies. Larval developmental parameters of D. suzukii were affected by grape variety and the density of Z. indianus. D. suzukii mortality was increased in most cases when in competition with Z. indianus, but was less pronounced when reared in Viognier grapes. My Z. indianus oviposition study demonstrated that they will follow injury created by D. suzukii, and then the Z. indianus larvae may outcompete D. suzukii within the berries. These studies greatly improved our understanding of D. suzukii biology and ecology in Virginia vineyards. Advisors/Committee Members: Pfeiffer, Douglas G. (committeechair), van der Linde, Kim (committee member), Bergh, J. Christopher (committee member), Burrack, Hannah J. (committee member), Samtani, Jayesh Bharat (committee member).

Subjects/Keywords: Drosophila suzukii; Zaprionus indianus; host plants; interspecific competition; wine grapes; trapping

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Shrader, M. E. (2017). Drosophila suzukii (Matsumura) (Diptera: Drosphilidae): Risk Assessment For An Invasive Vinegar Fly In Virginia Vineyards. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/86414

Chicago Manual of Style (16^th Edition):

Shrader, Meredith Edana. “Drosophila suzukii (Matsumura) (Diptera: Drosphilidae): Risk Assessment For An Invasive Vinegar Fly In Virginia Vineyards.” 2017. Doctoral Dissertation, Virginia Tech. Accessed January 26, 2021. http://hdl.handle.net/10919/86414.

MLA Handbook (7^th Edition):

Shrader, Meredith Edana. “Drosophila suzukii (Matsumura) (Diptera: Drosphilidae): Risk Assessment For An Invasive Vinegar Fly In Virginia Vineyards.” 2017. Web. 26 Jan 2021.

Vancouver:

Shrader ME. Drosophila suzukii (Matsumura) (Diptera: Drosphilidae): Risk Assessment For An Invasive Vinegar Fly In Virginia Vineyards. [Internet] [Doctoral dissertation]. Virginia Tech; 2017. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/10919/86414.

Council of Science Editors:

Shrader ME. Drosophila suzukii (Matsumura) (Diptera: Drosphilidae): Risk Assessment For An Invasive Vinegar Fly In Virginia Vineyards. [Doctoral Dissertation]. Virginia Tech; 2017. Available from: http://hdl.handle.net/10919/86414

Texas State University – San Marcos

19. Egan, Scott Patrick. Host Plant Quality and Deme Formation as Determinants of the Distribution and Abundance of a Gall-forming Herbivore.

Degree: MS, Biology, 2003, Texas State University – San Marcos

URL: https://digital.library.txstate.edu/handle/10877/9786

► Here I link variation in host plant quality to herbivore fitness variation at the local scale (between adjacent plants) with the process of demic adaptation… (more)

▼ Here I link variation in host plant quality to herbivore fitness variation at the local scale (between adjacent plants) with the process of demic adaptation operating at the patch scale to provide a synthetic explanation to the patchy distribution of the specialist gall forming wasp Belonocnema treatae (Hymenoptera:Cynipidae) within populations of its host plant, Quercus fusiformis. In this gall former system gall densities vary by orders of magnitude between adjacent host trees; host trees supporting high gall densities are rare (<5%) and appear across the landscape as habitat islands within a seaofhost plants supporting only low herbivore densities. To understand the relationship between herbivore fitness variation and variation in the abundance and distribution of the herbivore at the local and patch scales a manipulative transplant experiment was performed. Mated sexual generation B. treatae females from each of five high gall density trees were placed on (a) their respective four nearest neighbor conspecifics that exhibited low gall density, (b) the four alternative high density trees, and (c) their natal trees (control). Each treatment (source population+ rearing site) was replicated three times. Linear mixed effects ANOV A was used with the host tree, on which development took place, set as a fixed factor and the herbivore source population set as a random factor to test for effects of local variation in plant quality on herbivore fitness and deme formation. For each replicate, I recotded: {a) gall initiation success(# of galls established/# oviposition scars), (b) total number of galls produced, ( c) leaf abscission rates, (d) gall developmental rate, (e) individual gall size, (fand g) percent of galls developing to established minimum emergent size thresholds for B. treatae in the absence and presence of natural enemies, and (h) overall emergence success(# of galls producing a B. treataeltotal galls). Results from the test oflocal quality (high density vs. respective near-neighbor low density trees) demonstrate that leaf gall density per tree equates with host quality. Transplanted populations of gall formers exhibited greater gall initiation success (p < 0.05), total number of galls produced (p < 0.001), average gall size (p < 0.001), and percent reaching natural enemy critical size threshold (p = 0.05) on focal trees compared to low density neighbors. Within this mosaic oflocal quality variation, comparison of herbivore performance on natal and novel high density trees demonstrate that the herbivore has undergone adaptation at the level of the individual host plant (deme formation) as shown by lower leaf abscission rate (p < 0.001 ), and higher developmental rate (p < 0.001), average gall size (p < 0.001), percent reaching tree critical threshold (p < 0.001), and overall emergence success (p < 0.001). Together these results from these linked experiments demonstrate convincingly that (a) heavily galled focal trees are surrounded by host trees of relatively lower quality to the herbivore and (b) that deme… Advisors/Committee Members: Ott, James R. (advisor), Gabor, Caitlin (committee member), Nice, Chris (committee member), Weckerly, Floyd (committee member).

Subjects/Keywords: Host plants; Phytophagous insects; Herbivores

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Egan, S. P. (2003). Host Plant Quality and Deme Formation as Determinants of the Distribution and Abundance of a Gall-forming Herbivore. (Masters Thesis). Texas State University – San Marcos. Retrieved from https://digital.library.txstate.edu/handle/10877/9786

Chicago Manual of Style (16^th Edition):

Egan, Scott Patrick. “Host Plant Quality and Deme Formation as Determinants of the Distribution and Abundance of a Gall-forming Herbivore.” 2003. Masters Thesis, Texas State University – San Marcos. Accessed January 26, 2021. https://digital.library.txstate.edu/handle/10877/9786.

MLA Handbook (7^th Edition):

Egan, Scott Patrick. “Host Plant Quality and Deme Formation as Determinants of the Distribution and Abundance of a Gall-forming Herbivore.” 2003. Web. 26 Jan 2021.

Vancouver:

Egan SP. Host Plant Quality and Deme Formation as Determinants of the Distribution and Abundance of a Gall-forming Herbivore. [Internet] [Masters thesis]. Texas State University – San Marcos; 2003. [cited 2021 Jan 26]. Available from: https://digital.library.txstate.edu/handle/10877/9786.

Council of Science Editors:

Egan SP. Host Plant Quality and Deme Formation as Determinants of the Distribution and Abundance of a Gall-forming Herbivore. [Masters Thesis]. Texas State University – San Marcos; 2003. Available from: https://digital.library.txstate.edu/handle/10877/9786

University of Tasmania

20. Steinbauer, MJ. The biogeography and host plant utilisation of eucalypt feeding Coreidae (Hemiptera: Heteroptera).

Degree: 1996, University of Tasmania

URL: https://eprints.utas.edu.au/21688/1/whole_SteinbauerMartinJames1996_thesis.pdf

► In Tasmania, Australia, the family Coreidae (Hemiptera: Heteroptera) is represented by three species; Amorbus obscuricomis (Westwood), Gelonus tasmanicus (Le Guillou) and Acantholybas kirkaldyi Bergroth. Of… (more)

▼ In Tasmania, Australia, the family Coreidae (Hemiptera: Heteroptera) is represented by three species; Amorbus obscuricomis (Westwood), Gelonus tasmanicus (Le Guillou) and Acantholybas kirkaldyi Bergroth. Of these, A. obscuricomis and G. tasmanicus are host specific for plants of the genus Eucalyptus (Myrtaceae), with the former feeding almost exclusively upon shoots and the latter feeding at various sites. Initial uncertainty as to the identity of the coreids within Tasmania lead to the taxonomy of the three genera being reyiewed. These studies showed that Amorbus, a genus of 20 plus species, is represented in Tasmania only by A. obscuricomis; while Gelonus tasmanicus was confirmed as being a monospecific genus. Rediscovery of individuals of A. kirkaldyi, known previously only from the type description, allowed a formal revision of this genus to be undertaken. The distributions of A. obscuricomis and G. tasmanicus were found to include much of Tasmania and south-eastern Australia. In Tasmania, coreids were noticeably absent from the western half of the island where the vegetation is almost devoid of eucalypts. Both species were found to be univoltine in Tasmania. The phenology of A. obscuricomis appears to coincide particularly well with seasonal growth phenology of Eucalyptus. Aspects of these species' developmental and reproductive biologies are used to support hypotheses concerning their biogeography and host plant utilisation. No-choice host plant performance studies revealed that A. obscuricomis would feed and lay eggs on all Eucalyptus species offered. Nymphs of this species were also able to eclose on most eucalypts tested. G. tasmanicus was only able to reach adulthood on E. regnans and E. delegatensis. For A. obscuricomis, performance indicators such as adult survival, egg production and weight of offspring were influenced by the quality of the hosts' shoots, in particular the C/N ratio and water content; while the reduced host range of G. tasmanicus is suggestive of a more important role of secondary plant substances in the species. The oligophagous habit of A. obscuricomis and G. tasmanicus for eucalypts was confirmed by field sampling. General observations suggested that A. obscuricomis preferred hosts which were coppicing after being physically damaged and a field based experiment investigated this issue. Epicormic buds were induced by canopy removal, simulating the effect of fire. Sampling of control and coppicing eucalypts revealed the complete absence of A. obscuricomis nymphs from non-coppicing trees. C/N and water content analyses of coppicing and control hosts revealed that coppice shoots were nutritionally superior to normal shoots. In the discussion I relate the biogeography and host plant utilisation of A. obscuricomis, in particular, to the degree of polyphagy exhibited by that species. I argue that the selection pressure imposed on A. obscuricomis by an environment where the supply and quality of eucalypt shoots is unpredictable, has favoured the evolution of an oligophagous feeding…

Subjects/Keywords: Coreidae; Eucalyptus; Host-parasite relationships; Host plants; Biogeography

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Steinbauer, M. (1996). The biogeography and host plant utilisation of eucalypt feeding Coreidae (Hemiptera: Heteroptera). (Thesis). University of Tasmania. Retrieved from https://eprints.utas.edu.au/21688/1/whole_SteinbauerMartinJames1996_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):

Steinbauer, MJ. “The biogeography and host plant utilisation of eucalypt feeding Coreidae (Hemiptera: Heteroptera).” 1996. Thesis, University of Tasmania. Accessed January 26, 2021. https://eprints.utas.edu.au/21688/1/whole_SteinbauerMartinJames1996_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):

Steinbauer, MJ. “The biogeography and host plant utilisation of eucalypt feeding Coreidae (Hemiptera: Heteroptera).” 1996. Web. 26 Jan 2021.

Vancouver:

Steinbauer M. The biogeography and host plant utilisation of eucalypt feeding Coreidae (Hemiptera: Heteroptera). [Internet] [Thesis]. University of Tasmania; 1996. [cited 2021 Jan 26]. Available from: https://eprints.utas.edu.au/21688/1/whole_SteinbauerMartinJames1996_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:

Steinbauer M. The biogeography and host plant utilisation of eucalypt feeding Coreidae (Hemiptera: Heteroptera). [Thesis]. University of Tasmania; 1996. Available from: https://eprints.utas.edu.au/21688/1/whole_SteinbauerMartinJames1996_thesis.pdf

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

21. Overholser, E. L. (Earle Long), 1888-1949. Influence of some external conditions upon infection of hosts with powdery mildews.

Degree: 1914, University of Missouri

URL: https://doi.org/10.32469/10355/16142

► It has long been observed that one condition or another of the environment is favorable to the perpetuation and spread of fungous diseases. For example,… (more)

Subjects/Keywords: Powdery mildew diseases; Host-fungus relationships; Host plants

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Overholser, E. L. (Earle Long), 1. (1914). Influence of some external conditions upon infection of hosts with powdery mildews. (Thesis). University of Missouri. Retrieved from https://doi.org/10.32469/10355/16142

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):

Overholser, E. L. (Earle Long), 1888-1949. “Influence of some external conditions upon infection of hosts with powdery mildews.” 1914. Thesis, University of Missouri. Accessed January 26, 2021. https://doi.org/10.32469/10355/16142.

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

MLA Handbook (7^th Edition):

Overholser, E. L. (Earle Long), 1888-1949. “Influence of some external conditions upon infection of hosts with powdery mildews.” 1914. Web. 26 Jan 2021.

Vancouver:

Overholser, E. L. (Earle Long) 1. Influence of some external conditions upon infection of hosts with powdery mildews. [Internet] [Thesis]. University of Missouri; 1914. [cited 2021 Jan 26]. Available from: https://doi.org/10.32469/10355/16142.

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

Council of Science Editors:

Overholser, E. L. (Earle Long) 1. Influence of some external conditions upon infection of hosts with powdery mildews. [Thesis]. University of Missouri; 1914. Available from: https://doi.org/10.32469/10355/16142

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

22. Overholser, E. L. (Earle Long), 1888-1949. Influence of some external conditions upon infection of hosts with powdery mildews.

Degree: 1914, University of Missouri

URL: http://hdl.handle.net/10355/16142

► It has long been observed that one condition or another of the environment is favorable to the perpetuation and spread of fungous diseases. For example,… (more)

Subjects/Keywords: Powdery mildew diseases; Host-fungus relationships; Host plants

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Overholser, E. L. (Earle Long), 1. (1914). Influence of some external conditions upon infection of hosts with powdery mildews. (Thesis). University of Missouri. Retrieved from http://hdl.handle.net/10355/16142

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):

Overholser, E. L. (Earle Long), 1888-1949. “Influence of some external conditions upon infection of hosts with powdery mildews.” 1914. Thesis, University of Missouri. Accessed January 26, 2021. http://hdl.handle.net/10355/16142.

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

MLA Handbook (7^th Edition):

Overholser, E. L. (Earle Long), 1888-1949. “Influence of some external conditions upon infection of hosts with powdery mildews.” 1914. Web. 26 Jan 2021.

Vancouver:

Overholser, E. L. (Earle Long) 1. Influence of some external conditions upon infection of hosts with powdery mildews. [Internet] [Thesis]. University of Missouri; 1914. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/10355/16142.

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

Council of Science Editors:

Overholser, E. L. (Earle Long) 1. Influence of some external conditions upon infection of hosts with powdery mildews. [Thesis]. University of Missouri; 1914. Available from: http://hdl.handle.net/10355/16142

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

Simon Fraser University

23. Chow, Andrew. Host selection and switching by hymenopterous parasitoids (aphidiidae) of alfalfa and pea aphid (aphididae).

Degree: 1988, Simon Fraser University

URL: http://summit.sfu.ca/item/4925

Subjects/Keywords: Aphididae – Host plants.; Host-parasite relationships.; Aphididae.

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Chow, A. (1988). Host selection and switching by hymenopterous parasitoids (aphidiidae) of alfalfa and pea aphid (aphididae). (Thesis). Simon Fraser University. Retrieved from http://summit.sfu.ca/item/4925

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):

Chow, Andrew. “Host selection and switching by hymenopterous parasitoids (aphidiidae) of alfalfa and pea aphid (aphididae).” 1988. Thesis, Simon Fraser University. Accessed January 26, 2021. http://summit.sfu.ca/item/4925.

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

MLA Handbook (7^th Edition):

Chow, Andrew. “Host selection and switching by hymenopterous parasitoids (aphidiidae) of alfalfa and pea aphid (aphididae).” 1988. Web. 26 Jan 2021.

Vancouver:

Chow A. Host selection and switching by hymenopterous parasitoids (aphidiidae) of alfalfa and pea aphid (aphididae). [Internet] [Thesis]. Simon Fraser University; 1988. [cited 2021 Jan 26]. Available from: http://summit.sfu.ca/item/4925.

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

Council of Science Editors:

Chow A. Host selection and switching by hymenopterous parasitoids (aphidiidae) of alfalfa and pea aphid (aphididae). [Thesis]. Simon Fraser University; 1988. Available from: http://summit.sfu.ca/item/4925

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

University of KwaZulu-Natal

24. Mbande, Abongile. The impact of soil water and nitrogen variability on the fitness and performance of Neolema abbreviata Larcordaire (Chrysomelidae) a biological control agent for Tradescantia fluminensis.

Degree: 2018, University of KwaZulu-Natal

URL: https://researchspace.ukzn.ac.za/handle/10413/16600

► Tradescantia fluminensis Vell. (Commelinaceae) is a plant of Neotropical origin native to the southern parts of Brazil bordering Argentina. In South Africa, it is classified… (more)

▼ Tradescantia fluminensis Vell. (Commelinaceae) is a plant of Neotropical origin native to the southern parts of Brazil bordering Argentina. In South Africa, it is classified as a category 1B invader species in the National Environmental Management Biodiversity Act (NEMBA) owing to its incipient phase of invasion. The occurrence of naturalised populations of T. fluminensis has so far been confirmed in all provinces except the Free State, Northern Cape and North West. In cognisance of the devastating effects of invasive alien plants on native biodiversity, ecosystem health and ultimately provision of ecosystem services, several control methods have been employed with varying degrees of success. Classical biological control, which involves the release of exotic natural enemies (pathogens and herbivorous insects), is one such method widely-used because of its relatively low costs and minimal non-target effects. For T. fluminensis, Neolema abbreviata (Larcodaire) Coleoptera: Chrysomelidae) is one agent that is earmarked for release in South Africa following a successful introduction in New Zealand. However, little is known how novel environments presented by soil water and nutrient gradients may indirectly influence its herbivore performance and life-history through alterations in host-plant quality. In this era of global climate change where anthropogenic activities have led to changes in rainfall patterns and biogeochemical cycles of major elements such as nitrogen, investigation of species responses to such is important. Results from my study show that both water and nitrogen (N) variability influenced plant biomass accumulation, foliar N content and subsequent herbivore performance, and life-history traits of both adult and larval N. abbreviata. The longest vines were on plants that had optimal irrigation under excess fertiliser whilst severely water stressed plants that had excess fertiliser had the shortest vines. Foliar N content was highest in plants that had excess fertiliser under both pulsed and optimal irrigation whilst lowest foliar N content was in plants under optimal irrigation without any fertiliser. Optimally irrigated plants that received moderate fertiliser had their highest rate of egg deposition in both no-choice and multi-choice conditions suggesting quality-based host ranking behaviour in N. abbreviata. The consequent larval performance traits which included weight gain and time to pupation were superior in this treatment thereby providing support for the preference-performance hypothesis (PPH). Feeding patterns between larvae and adults among plant treatments were largely similar suggesting uniform nutritional requirements across the life-stages. There were limited parental effects of plant quality on the life-history traits in both larvae and adults across F1 and F2 generations. In reciprocal diet transplant experiments, there were no significant responses to parental diet effects on larval weight, mortality, feeding damage, pupal weight and days to pupation. However, there were significant… Advisors/Committee Members: Chidawanyika, Frank. (advisor), Tedder, Michelle Jennifer. (advisor).

Subjects/Keywords: Theses - Entomology.; Invasive plants - Biological control.; Invasive plants - Control - South Africa.; Host plants - South Africa.; Beetles - Host plants.; Invasion.; Biocontrol.; Bottom up effects.; Host plant quality.; Alien species.; Tradescantia fluminensis.; Neolema abbreviata.

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Mbande, A. (2018). The impact of soil water and nitrogen variability on the fitness and performance of Neolema abbreviata Larcordaire (Chrysomelidae) a biological control agent for Tradescantia fluminensis. (Thesis). University of KwaZulu-Natal. Retrieved from https://researchspace.ukzn.ac.za/handle/10413/16600

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):

Mbande, Abongile. “The impact of soil water and nitrogen variability on the fitness and performance of Neolema abbreviata Larcordaire (Chrysomelidae) a biological control agent for Tradescantia fluminensis.” 2018. Thesis, University of KwaZulu-Natal. Accessed January 26, 2021. https://researchspace.ukzn.ac.za/handle/10413/16600.

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

MLA Handbook (7^th Edition):

Mbande, Abongile. “The impact of soil water and nitrogen variability on the fitness and performance of Neolema abbreviata Larcordaire (Chrysomelidae) a biological control agent for Tradescantia fluminensis.” 2018. Web. 26 Jan 2021.

Vancouver:

Mbande A. The impact of soil water and nitrogen variability on the fitness and performance of Neolema abbreviata Larcordaire (Chrysomelidae) a biological control agent for Tradescantia fluminensis. [Internet] [Thesis]. University of KwaZulu-Natal; 2018. [cited 2021 Jan 26]. Available from: https://researchspace.ukzn.ac.za/handle/10413/16600.

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

Council of Science Editors:

Mbande A. The impact of soil water and nitrogen variability on the fitness and performance of Neolema abbreviata Larcordaire (Chrysomelidae) a biological control agent for Tradescantia fluminensis. [Thesis]. University of KwaZulu-Natal; 2018. Available from: https://researchspace.ukzn.ac.za/handle/10413/16600

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

University of KwaZulu-Natal

25. Smith, Gary Sean. Host-searching by Goniozus natalensis females elicited by a short- range kairomone in the frass of its natural host Eldana Saccharina.

Degree: MS, 1990, University of KwaZulu-Natal

URL: http://hdl.handle.net/10413/8096

► Petri dish and olfactometer tests demonstrated that Goniozus natalensis (Gordh) females exhibit a host-searching response upon contact and at a short distance by olfaction, to… (more)

Subjects/Keywords: Chemoreceptors.; Insects – host plants.; Insects-plant relationships.; Lepidoptera – host plants.

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Smith, G. S. (1990). Host-searching by Goniozus natalensis females elicited by a short- range kairomone in the frass of its natural host Eldana Saccharina. (Masters Thesis). University of KwaZulu-Natal. Retrieved from http://hdl.handle.net/10413/8096

Chicago Manual of Style (16^th Edition):

Smith, Gary Sean. “Host-searching by Goniozus natalensis females elicited by a short- range kairomone in the frass of its natural host Eldana Saccharina.” 1990. Masters Thesis, University of KwaZulu-Natal. Accessed January 26, 2021. http://hdl.handle.net/10413/8096.

MLA Handbook (7^th Edition):

Smith, Gary Sean. “Host-searching by Goniozus natalensis females elicited by a short- range kairomone in the frass of its natural host Eldana Saccharina.” 1990. Web. 26 Jan 2021.

Vancouver:

Smith GS. Host-searching by Goniozus natalensis females elicited by a short- range kairomone in the frass of its natural host Eldana Saccharina. [Internet] [Masters thesis]. University of KwaZulu-Natal; 1990. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/10413/8096.

Council of Science Editors:

Smith GS. Host-searching by Goniozus natalensis females elicited by a short- range kairomone in the frass of its natural host Eldana Saccharina. [Masters Thesis]. University of KwaZulu-Natal; 1990. Available from: http://hdl.handle.net/10413/8096

Michigan State University

26. Miles, Timothy David. Infection of blueberries by Colletotrichum acutatum : host defenses, inheritance of resistance and environmental effects.

Degree: 2011, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:2763

►

Thesis Ph. D. Michigan State University. Plant Pathology 2011.

Anthracnose fruit caused by Colletotrichum acutatum is the most important postharvest disease of blueberries (Vaccinium corymbosum).… (more)

▼

Thesis Ph. D. Michigan State University. Plant Pathology 2011.

Anthracnose fruit caused by Colletotrichum acutatum is the most important postharvest disease of blueberries (Vaccinium corymbosum). In order to develop a disease forecasting model for anthracnose fruit rot in blueberries, the effects of temperature, wetness duration, relative humidity and wetness interruptions were studied on appressorium formation and infection of green and blue fruit by C. acutatum. Three-dimensional response surfaces were fitted to the data. A model combining all variables was developed. The resistance response in blueberry cultivar ‘Elliott’ was investigated. Using suppression subtraction hybridization, several defense-related genes as well as abiotic stress-related genes were found to be upregulated in ‘Elliott’ but not in ‘Jersey’ fruit within 24 hours after inoculation. Some genes were related to oxidative stress in plant tissues. Higher levels of hydrogen peroxide were also found in inoculated ‘Elliott’ compared to ‘Jersey’ fruit. To investigate the role of antifungal compounds in resistance, a series of fruit extractions was performed with water, methanol, and ethyl acetate, and fractions were tested for antifungal activity in agar plate bioassays. The methanolic extract was the most biologically active; disease incidence was reduced by 88% when ‘Jersey’ fruit was pretreated with a 4% solution prior to inoculation with C. acutatum. Spectrophotometry showed that this fraction mainly contained flavonoids. Anthocyanins and flavonols were then quantified and identified in both cultivars using HPLC-MS. ‘Elliott’ fruit overall contained more anthocyanins than ‘Jersey’ fruit but the same compounds were found in both cultivars. However, two unique flavonols were present in ‘Elliott’.A total of 26 blueberry cultivars was screened for anthracnose resistance using several different techniques. A cut-fruit technique was promising for use as a rapid screening method. A negative linear correlation was observed between resistance and fruit sugar content but not fruit pH. The growth of C. acutatum in culture was restricted at higher sugar and lower pH levels. The inheritance of resistance was also investigated to facilitate future breeding work. Using inoculated fruit from F-1 populations of specific crosses between resistant and susceptible cultivars, resistance ratings based on AUDPC values were compared to resistance ratings predicted from previous studies. Significant correlations were observed, providing strong evidence that anthracnose resistance is highly heritable in highbush blueberries. The results from these studies contribute to the understanding of the biology and management of anthracnose fruit rot in blueberry.

Description based on online resource; title from PDF t.p. (ProQuest, viewed Jan. 22, 2013)

Advisors/Committee Members: Schilder, Annemiek C, Hammerschmidt, Raymond, Day, Brad, Nair, Muraleedharan.

Subjects/Keywords: Blueberries – Disease and pest resistance – Genetic aspects; Colletotrichum – Host plants; Blueberries – Diseases and pests; Blueberries – Defenses; Blueberries – Postharvest diseases and injuries; Host plants – Defenses; Anthracnose – Control; Plant pathology; Colletotrichum acutatum

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Miles, T. D. (2011). Infection of blueberries by Colletotrichum acutatum : host defenses, inheritance of resistance and environmental effects. (Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:2763

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):

Miles, Timothy David. “Infection of blueberries by Colletotrichum acutatum : host defenses, inheritance of resistance and environmental effects.” 2011. Thesis, Michigan State University. Accessed January 26, 2021. http://etd.lib.msu.edu/islandora/object/etd:2763.

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

MLA Handbook (7^th Edition):

Miles, Timothy David. “Infection of blueberries by Colletotrichum acutatum : host defenses, inheritance of resistance and environmental effects.” 2011. Web. 26 Jan 2021.

Vancouver:

Miles TD. Infection of blueberries by Colletotrichum acutatum : host defenses, inheritance of resistance and environmental effects. [Internet] [Thesis]. Michigan State University; 2011. [cited 2021 Jan 26]. Available from: http://etd.lib.msu.edu/islandora/object/etd:2763.

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

Council of Science Editors:

Miles TD. Infection of blueberries by Colletotrichum acutatum : host defenses, inheritance of resistance and environmental effects. [Thesis]. Michigan State University; 2011. Available from: http://etd.lib.msu.edu/islandora/object/etd:2763

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

Michigan State University

27. Lazarus, Laura Lenore. Host preferences and host suitability of ten hardwoods for the Asian longhorned beetle, Anoplophora glabripennis and of four conifers for the white-spotted pine sawyer, Monochamus scutellatus.

Degree: MS, 2003, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:32357

Subjects/Keywords: Asian longhorned beetle – Host plants; Monochamus scutellatus – Host plants; Plant-pathogen relationships

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Lazarus, L. L. (2003). Host preferences and host suitability of ten hardwoods for the Asian longhorned beetle, Anoplophora glabripennis and of four conifers for the white-spotted pine sawyer, Monochamus scutellatus. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:32357

Chicago Manual of Style (16^th Edition):

Lazarus, Laura Lenore. “Host preferences and host suitability of ten hardwoods for the Asian longhorned beetle, Anoplophora glabripennis and of four conifers for the white-spotted pine sawyer, Monochamus scutellatus.” 2003. Masters Thesis, Michigan State University. Accessed January 26, 2021. http://etd.lib.msu.edu/islandora/object/etd:32357.

MLA Handbook (7^th Edition):

Lazarus, Laura Lenore. “Host preferences and host suitability of ten hardwoods for the Asian longhorned beetle, Anoplophora glabripennis and of four conifers for the white-spotted pine sawyer, Monochamus scutellatus.” 2003. Web. 26 Jan 2021.

Vancouver:

Lazarus LL. Host preferences and host suitability of ten hardwoods for the Asian longhorned beetle, Anoplophora glabripennis and of four conifers for the white-spotted pine sawyer, Monochamus scutellatus. [Internet] [Masters thesis]. Michigan State University; 2003. [cited 2021 Jan 26]. Available from: http://etd.lib.msu.edu/islandora/object/etd:32357.

Council of Science Editors:

Lazarus LL. Host preferences and host suitability of ten hardwoods for the Asian longhorned beetle, Anoplophora glabripennis and of four conifers for the white-spotted pine sawyer, Monochamus scutellatus. [Masters Thesis]. Michigan State University; 2003. Available from: http://etd.lib.msu.edu/islandora/object/etd:32357

28. Romão, Aline Silva. Análise da comunidade fúngica associada à cana-de-açúcar e estudo da interação Trichoderma virens - planta hospedeira.

Degree: PhD, Genética e Melhoramento de Plantas, 2010, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/11/11137/tde-02082010-151201/ ;

► Fungos associados às plantas desempenham diversas funções biológicas importantes e constituem imensos reservatórios de novos compostos químicos, atividades biológicas e processos biotecnológicos ainda subexplorados. A… (more)

▼ Fungos associados às plantas desempenham diversas funções biológicas importantes e constituem imensos reservatórios de novos compostos químicos, atividades biológicas e processos biotecnológicos ainda subexplorados. A diversidade estimada para esses microrganismos é enorme, porém menos de 7 % das espécies é conhecida. Em cana-de-açúcar, uma das principais culturas agrícolas do Brasil, estudos de interação e diversidade são recentes e ainda incipientes, principalmente com relação à comunidade fúngica e sua interação com plantas transgênicas. Uma das espécies presentes na comunidade fúngica associada à cana-de-açúcar é o fungo Trichoderma virens, o qual apresenta grande potencial de exploração como agente de controle biológico, promotor de crescimento vegetal e produtor de enzimas e metabólitos secundários. Nesse sentido, o presente trabalho buscou primeiramente determinar a estrutura e diversidade da comunidade de fungos (endófitos de raiz e rizosfera) associados a duas variedades de cana-de-açúcar, uma convencional (SP80-1842) e outra transgênica (IMI-1, expressando resistência ao herbicida imazapir), e avaliar possíveis efeitos da transgênese, do estágio de crescimento e do manejo agrícola. Além disso, uma linhagem de T. virens, isolada como endófito de raiz dessa planta, foi selecionada para estudos de interação fungo-planta e determinação dos mecanismos envolvidos na sua atividade de controle biológico. Na primeira etapa do trabalho, que compreendeu isolamento, caracterização e avaliação de alterações na comunidade fúngica, os resultados obtidos mostraram que a comunidade fúngica associada à cana-de-açúcar é formada por pelo menos 35 gêneros diferentes, a maioria do filo Ascomicota, sendo que a sua estrutura incluiu um grande número de gêneros pouco frequentes e um pequeno número de gêneros altamente frequentes (Penicillium, Fusarium, Aspergillus, Trichoderma e Epicoccum), dos quais alguns apresentam especificidade ao local de isolamento (raiz ou rizosfera). A avaliação de possíveis efeitos sobre a comunidade fúngica mostrou que a idade da planta foi o único fator que influenciou de forma significativa as características dessa comunidade, sendo que os efeitos da transgênese, se existentes, devem ser secundários quando comparados às fontes naturais de variação. Na segunda etapa, a linhagem de T. virens T.v.223 foi transformada pelo sistema Agrobacterium tumefaciens e o transformante gerado (expressando resistência à higromicina B e a proteína GFP) foi utilizado em ensaios de interação via reisolamento e microscopia. Os resultados revelaram que esse fungo não promoveu alterações fenotípicas visíveis na planta hospedeira, colonizou predominantemente as raízes, onde formou camadas densas de micélio ao seu redor, antes de penetrar o espaço intercelular das primeiras camadas de célula da epiderme do tecido radicular. Por último, mutantes de T. virens deficientes para produção de quitinases foram gerados por deleção gênica e silenciamento gênico via RNAi e avaliados quanto à capacidade de controle biológico de diferentes… Advisors/Committee Members: Araujo, Welington Luiz de.

Subjects/Keywords: Cana-de-açúcar; Chitin; Diversidade; Diversity; Fungi; Fungos; Host plants; Plantas hospedeiras; Plantas transgênicas; Quitina; Sugarcane; Transgenic plants; Trichoderma.; Trichoderma.

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Romão, A. S. (2010). Análise da comunidade fúngica associada à cana-de-açúcar e estudo da interação Trichoderma virens - planta hospedeira. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/11/11137/tde-02082010-151201/ ;

Chicago Manual of Style (16^th Edition):

Romão, Aline Silva. “Análise da comunidade fúngica associada à cana-de-açúcar e estudo da interação Trichoderma virens - planta hospedeira.” 2010. Doctoral Dissertation, University of São Paulo. Accessed January 26, 2021. http://www.teses.usp.br/teses/disponiveis/11/11137/tde-02082010-151201/ ;.

MLA Handbook (7^th Edition):

Romão, Aline Silva. “Análise da comunidade fúngica associada à cana-de-açúcar e estudo da interação Trichoderma virens - planta hospedeira.” 2010. Web. 26 Jan 2021.

Vancouver:

Romão AS. Análise da comunidade fúngica associada à cana-de-açúcar e estudo da interação Trichoderma virens - planta hospedeira. [Internet] [Doctoral dissertation]. University of São Paulo; 2010. [cited 2021 Jan 26]. Available from: http://www.teses.usp.br/teses/disponiveis/11/11137/tde-02082010-151201/ ;.

Council of Science Editors:

Romão AS. Análise da comunidade fúngica associada à cana-de-açúcar e estudo da interação Trichoderma virens - planta hospedeira. [Doctoral Dissertation]. University of São Paulo; 2010. Available from: http://www.teses.usp.br/teses/disponiveis/11/11137/tde-02082010-151201/ ;

29. Fromont, Caroline. Molecular ecology, geography and species interactions of Mycopsylla insects with their bacterial endosymbionts, parasitoids and host fig trees.

Degree: 2017, Western Sydney University

URL: http://hdl.handle.net/1959.7/uws:40871

► Mycopsylla fici Tryon (Hemiptera: Homotomidae) is a plant sap-feeding pest insect that can cause complete defoliation of its sole host tree species, Ficus macrophylla Desf.… (more)

▼ Mycopsylla fici Tryon (Hemiptera: Homotomidae) is a plant sap-feeding pest insect that can cause complete defoliation of its sole host tree species, Ficus macrophylla Desf. ex. Pers., the Moreton Bay fig. It has been suggested that M. fici outbreaks happen during hot and dry years (Newman 2004). Its host has two forms; F. macrophylla f. macrophylla is present on the mainland of Australia and F. macrophylla f. columnaris on Lord Howe Island (LHI), a volcanic remnant located ~600 km off the coast of New South Wales. Since the 19th century, this fig species has also been planted outside its natural range within Australia (e.g. Melbourne, Perth) and overseas in New Zealand (e.g. Auckland), Europe and USA. In Australia only one other species of Mycopsylla has been described. Mycopsylla proxima Froggatt feeds on Ficus rubiginosa Desf. ex. Vent., but has not yet been reported to cause significant defoliation. Interestingly, while at least one parasitoid species has been observed attacking M. fici in Australia, no Mycopsylla specific parasitoid species has been formally described in M. fici natural range. One parasitoid species, Psyllaephagus cornwallensis, has been described in New Zealand, where M. fici is an alien species. This thesis presents multiple aspects of the intra- and inter-specific genetic relationships of Mycopsylla. By integrating multiple trophic levels involving Mycopsylla species, I present an excellent model system to study evolutionary questions on relationships between insect hosts, their parasitoids and endosymbionts. The incorporation of different spatial scales revealed and contrasted dispersal abilities of interacting species. This work contributes to the understanding of the interactions and dispersal of a poorly-known pest species, whose potentially drought-induced major outbreaks may become more common in our changing environment. Advisors/Committee Members: Western Sydney University. Hawkesbury Institute for the Environment (Host institution).

Subjects/Keywords: Ficus (plants); diseases and pests; insects; host plants; insect-plant relationships; Mycopsylla; Thesis (Ph.D.) – Western Sydney University, 2017

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Fromont, C. (2017). Molecular ecology, geography and species interactions of Mycopsylla insects with their bacterial endosymbionts, parasitoids and host fig trees. (Thesis). Western Sydney University. Retrieved from http://hdl.handle.net/1959.7/uws:40871

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):

Fromont, Caroline. “Molecular ecology, geography and species interactions of Mycopsylla insects with their bacterial endosymbionts, parasitoids and host fig trees.” 2017. Thesis, Western Sydney University. Accessed January 26, 2021. http://hdl.handle.net/1959.7/uws:40871.

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

MLA Handbook (7^th Edition):

Fromont, Caroline. “Molecular ecology, geography and species interactions of Mycopsylla insects with their bacterial endosymbionts, parasitoids and host fig trees.” 2017. Web. 26 Jan 2021.

Vancouver:

Fromont C. Molecular ecology, geography and species interactions of Mycopsylla insects with their bacterial endosymbionts, parasitoids and host fig trees. [Internet] [Thesis]. Western Sydney University; 2017. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/1959.7/uws:40871.

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

Council of Science Editors:

Fromont C. Molecular ecology, geography and species interactions of Mycopsylla insects with their bacterial endosymbionts, parasitoids and host fig trees. [Thesis]. Western Sydney University; 2017. Available from: http://hdl.handle.net/1959.7/uws:40871

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

University of Missouri – Columbia

30. Cho, Hyojin. A study of transcript profiling of soybean roots during nitrogen fixing symbiosis.

Degree: 2006, University of Missouri – Columbia

URL: https://doi.org/10.32469/10355/5915

► [ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Nodulation is a symbiotic association between a host plant and its bacterium. The result of… (more)

Subjects/Keywords: Host-bacteria relationships; Growth (Plants); Nitrogen-fixing plants

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Cho, H. (2006). A study of transcript profiling of soybean roots during nitrogen fixing symbiosis. (Thesis). University of Missouri – Columbia. Retrieved from https://doi.org/10.32469/10355/5915

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):

Cho, Hyojin. “A study of transcript profiling of soybean roots during nitrogen fixing symbiosis.” 2006. Thesis, University of Missouri – Columbia. Accessed January 26, 2021. https://doi.org/10.32469/10355/5915.

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

MLA Handbook (7^th Edition):

Cho, Hyojin. “A study of transcript profiling of soybean roots during nitrogen fixing symbiosis.” 2006. Web. 26 Jan 2021.

Vancouver:

Cho H. A study of transcript profiling of soybean roots during nitrogen fixing symbiosis. [Internet] [Thesis]. University of Missouri – Columbia; 2006. [cited 2021 Jan 26]. Available from: https://doi.org/10.32469/10355/5915.

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

Council of Science Editors:

Cho H. A study of transcript profiling of soybean roots during nitrogen fixing symbiosis. [Thesis]. University of Missouri – Columbia; 2006. Available from: https://doi.org/10.32469/10355/5915

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

		in
And / Or
		in
And / Or
		in
And / Or
		in

Open Access Theses and Dissertations