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You searched for subject:(Cyanidiales). Showing records 1 – 3 of 3 total matches.

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Montana State University

1. Skorupa, Dana Jean. Cyanidiales ecology : biodiversity and transcriptomics in Yellowstone National Park.

Degree: PhD, College of Letters & Science, 2013, Montana State University

The work presented in this thesis investigated the ecology of a unicellular, and asexual red algae belonging to the order Cyanidiales which are the only phototrophs occurring in low pH (0.5-3.5) and high temperature (38-56°C) geothermal environments. These algae exhibit a dynamic seasonal biomass fluctuation referred to as 'mat decline,' where viability drastically decreases as seasonal ultra-violet (UV) and visible (VIS) irradiance intensify. Temporal experiments coupling UV irradiance filtering with whole-community transcription profiling revealed significant cyanidial gene expression changes occurring as a result of exposure to UV, and that patterns of response adjusted across low and high irradiance time periods. Separate analyses examined genes responding to either increasing seasonal UV or VIS intensity, or by the combined effects of both irradiance wavelengths (UV and VIS). Results not only corroborated known physiological changes to solar irradiance, but also suggested the strategies employed to deal with excess VIS and UV intensity may be highly integrated. Comparative analysis determined that environmental microarrays are highly sensitive in their detection of transcript diversity, and in situ gene expression changes. Proteomic work identified several dominant cyanidial proteins which were also abundantly transcribed, suggesting there is good correspondence between highly abundant proteins and gene transcriptional activity for these algae. Additionally, a study is presented which examined the biodiversity and distribution of the Cyanidiales in Yellowstone National Park (YNP). Phylogenetic reconstruction using the rbcL gene sequence identified two well-supported YNP lineages: Cyanidioschyzon and Galdieria-A, and showed the separation of taxa based on ecophysiological conditions. Galdieria-A phylotypes were found exclusively in soil and endolithic habitats. Cyanidioschyzon was the sole phylotype found in aqueous environments, but was also detected in all soil and endolithic habitats investigated. Culturing efforts demonstrated that moisture availability controls cyanidial viability and distribution in soil habitats, while alternative environmental factors influence endolithic populations. In addition, autotrophic and heterotrophic viable cell counts in combination with rbcL gene sequencing determined that Galdieria dominates the species composition in soil environments, while the endolithic habitat contains both Cyanidioschyzon and Galdieria. Advisors/Committee Members: Chairperson, Graduate Committee: Timothy R. McDermott (advisor).

Subjects/Keywords: Cyanidiales.; Ultraviolet radiation.; Biodiversity.; Gene expression.

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APA (6th Edition):

Skorupa, D. J. (2013). Cyanidiales ecology : biodiversity and transcriptomics in Yellowstone National Park. (Doctoral Dissertation). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/3485

Chicago Manual of Style (16th Edition):

Skorupa, Dana Jean. “Cyanidiales ecology : biodiversity and transcriptomics in Yellowstone National Park.” 2013. Doctoral Dissertation, Montana State University. Accessed September 24, 2020. https://scholarworks.montana.edu/xmlui/handle/1/3485.

MLA Handbook (7th Edition):

Skorupa, Dana Jean. “Cyanidiales ecology : biodiversity and transcriptomics in Yellowstone National Park.” 2013. Web. 24 Sep 2020.

Vancouver:

Skorupa DJ. Cyanidiales ecology : biodiversity and transcriptomics in Yellowstone National Park. [Internet] [Doctoral dissertation]. Montana State University; 2013. [cited 2020 Sep 24]. Available from: https://scholarworks.montana.edu/xmlui/handle/1/3485.

Council of Science Editors:

Skorupa DJ. Cyanidiales ecology : biodiversity and transcriptomics in Yellowstone National Park. [Doctoral Dissertation]. Montana State University; 2013. Available from: https://scholarworks.montana.edu/xmlui/handle/1/3485


Arizona State University

2. Fecteau, Kristopher. Organic Carbon in Hydrothermal Systems: From Phototrophy to Aldehyde Transformations.

Degree: Chemistry, 2016, Arizona State University

Subjects/Keywords: Chemistry; Microbiology; Geochemistry; benzaldehyde; Cyanidiales; cyanobacteria; gold; pH; phototrophy

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APA (6th Edition):

Fecteau, K. (2016). Organic Carbon in Hydrothermal Systems: From Phototrophy to Aldehyde Transformations. (Doctoral Dissertation). Arizona State University. Retrieved from http://repository.asu.edu/items/40725

Chicago Manual of Style (16th Edition):

Fecteau, Kristopher. “Organic Carbon in Hydrothermal Systems: From Phototrophy to Aldehyde Transformations.” 2016. Doctoral Dissertation, Arizona State University. Accessed September 24, 2020. http://repository.asu.edu/items/40725.

MLA Handbook (7th Edition):

Fecteau, Kristopher. “Organic Carbon in Hydrothermal Systems: From Phototrophy to Aldehyde Transformations.” 2016. Web. 24 Sep 2020.

Vancouver:

Fecteau K. Organic Carbon in Hydrothermal Systems: From Phototrophy to Aldehyde Transformations. [Internet] [Doctoral dissertation]. Arizona State University; 2016. [cited 2020 Sep 24]. Available from: http://repository.asu.edu/items/40725.

Council of Science Editors:

Fecteau K. Organic Carbon in Hydrothermal Systems: From Phototrophy to Aldehyde Transformations. [Doctoral Dissertation]. Arizona State University; 2016. Available from: http://repository.asu.edu/items/40725


University of New Orleans

3. Harvey, Robert, Jr. Using PCR Amplification and Genetic Sequence Analysis of 18S rRNA Genes to Survey the Microbial Diversity and Distribution of Eukaryotic Microbes Inhabiting Two Thermo-acidic Streams in Yellowstone National Park, Wyoming.

Degree: MS, Biological Sciences, 2009, University of New Orleans

A cultivation-independent approach, sequence analysis of 18S rRNA genes PCR-amplified from environmental DNA, was used to explore the diversity and distribution of eukaryotic microbes inhabiting algal mats in two acidic geothermal streams in Yellowstone National Park. The objectives were to: (1) clarify the identity of mat forming algae in Nymph Creek (2) survey microbial species in the Nymph Creek mat over seasonal intervals along a thermal gradient (3) compare microbial species in the Nymph Creek mat with those in Alluvium Creek mats (4) evaluate microbial species in algal mats formed on different substrates in Alluvium Creek. The results show that a novel red alga dominates high temperature regions (~50ºC) of Nymph Creek and two "Chlorella-like" algae predominate the cooler regions (<38ºC). The predominant algae in Alluvium Creek were distinctly different from those in Nymph Creek. Several stramenophiles and fungi were detected in each algal mat. Advisors/Committee Members: Ferris, Michael, Clancy, Mary, Anthony, Nicola.

Subjects/Keywords: microbes; cyanidiales; Cyanidium; Galdieria; Cyanidioschyzon; Chlorella; algae; stramenophile; fungi; PCR; extremophile; environmental samples; Yellowstone

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

APA (6th Edition):

Harvey, Robert, J. (2009). Using PCR Amplification and Genetic Sequence Analysis of 18S rRNA Genes to Survey the Microbial Diversity and Distribution of Eukaryotic Microbes Inhabiting Two Thermo-acidic Streams in Yellowstone National Park, Wyoming. (Thesis). University of New Orleans. Retrieved from https://scholarworks.uno.edu/td/978

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

Chicago Manual of Style (16th Edition):

Harvey, Robert, Jr. “Using PCR Amplification and Genetic Sequence Analysis of 18S rRNA Genes to Survey the Microbial Diversity and Distribution of Eukaryotic Microbes Inhabiting Two Thermo-acidic Streams in Yellowstone National Park, Wyoming.” 2009. Thesis, University of New Orleans. Accessed September 24, 2020. https://scholarworks.uno.edu/td/978.

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

MLA Handbook (7th Edition):

Harvey, Robert, Jr. “Using PCR Amplification and Genetic Sequence Analysis of 18S rRNA Genes to Survey the Microbial Diversity and Distribution of Eukaryotic Microbes Inhabiting Two Thermo-acidic Streams in Yellowstone National Park, Wyoming.” 2009. Web. 24 Sep 2020.

Vancouver:

Harvey, Robert J. Using PCR Amplification and Genetic Sequence Analysis of 18S rRNA Genes to Survey the Microbial Diversity and Distribution of Eukaryotic Microbes Inhabiting Two Thermo-acidic Streams in Yellowstone National Park, Wyoming. [Internet] [Thesis]. University of New Orleans; 2009. [cited 2020 Sep 24]. Available from: https://scholarworks.uno.edu/td/978.

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

Council of Science Editors:

Harvey, Robert J. Using PCR Amplification and Genetic Sequence Analysis of 18S rRNA Genes to Survey the Microbial Diversity and Distribution of Eukaryotic Microbes Inhabiting Two Thermo-acidic Streams in Yellowstone National Park, Wyoming. [Thesis]. University of New Orleans; 2009. Available from: https://scholarworks.uno.edu/td/978

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

.