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Comparative Genomics of Freshwater Bloom-Forming Cyanobacteria and Associated Organisms

Creator:: Driscoll, Connor B.
Abstract:: The advent of improved DNA sequencing technologies has allowed the analysis of various microbial communities. Bloom-forming freshwater cyanobacteria can produce toxins and taste-and-odor compounds that can negatively affect drinking water supplies. Here, I have employed second- and third-generation sequencing technologies to characterize bloom-forming freshwater cyanobacterial genomes and their associated heterotrophic...
Resource Type:: Dissertation
Full Text:: Genomics of Freshwater Bloom-Forming Cyanobacteria and Associated Organisms Abstract approved: Theo W

Advances in Freshwater Cyanobacterial Genomics

Creator:: Brown, Nathaniel M.
Abstract:: Limnology is undergoing a transition to high-throughput -omic analysis of freshwater bacterial communities. An important first step in making the transition is to characterize several genomes that can be used as references to guide metagenome assembly and analysis. Here I characterize four new freshwater cyanobacterial genomes, a pair of lake...
Resource Type:: Dissertation
Full Text:: Freshwater Cyanobacterial Genomics Abstract approved: Theo W. Dreher Limnology is undergoing a transition

Comparative Growth Study of Toxic and Non-Toxic Microcystis aeruginosa Strains under Oxidative Stress Conditions

Creator:: Rajput, Neil
Abstract:: Toxic cyanobacterial blooms in freshwater sources are of increasing concern due to the production of toxins that pose a threat to human health. Both toxic and non-toxic strains of Microcystis aeruginosa cohabitate with one-another, in vivo. However, environmental conditions play a large role in determining the dominance of toxic or...
Resource Type:: Honors College Thesis

Influence of slash burning on microbial population and activities in a Douglas-fir forest soil

Creator:: Neal, John Lloyd
Resource Type:: Masters Thesis
Full Text:: grateful appreciation to the following people: Dr. W. B. Bollen for continued guidance, patience and

The role of methionine in the metabolism of Micrococcus radiodurans

Creator:: Deeney, Anne O'Connell
Resource Type:: Dissertation
Full Text:: responses with E. coli strain W. Methionine sulfoximine was found to in- hibit both strains B and W

Biosynthesis of yeast sterols

Creator:: Turner, Jan Ross
Abstract:: An enzyme system from cell-free yeast homogenates mediating the transfer of the methyl group from S-adenosylmethionine-methyl-C¹⁴ or methionine-methyl-C¹⁴ to C-28 of ergosterol has been studied. The effects of divalent cations, suithydryl inhibitors and reducing substances on the activity of the enzyme system have been investigated. It was established that for...
Resource Type:: Masters Thesis
Full Text:: Dr. L. W. Parks first for his contagious enthusiasm and first also for his guidance in this study

Significance of pigments in radiation resistance of Micrococcus radiodurans

Creator:: Krabbenhoft, Kenneth Louis
Abstract:: An ecological study of a microorganism similar to that isolated in 1956 and designated as Micrococcus radiodurans indicated that the organism could be isolated from several different environments. By taking advantage of its radio-resistivity, high levels of gamma radiation were used in the isolation procedures to inactivate most of the...
Resource Type:: Dissertation
Full Text:: The author wishes to express his appreciation to Dr. Arthur W. Anderson for his guidance and

Studies on the lipid and fatty acid composition of Micrococcus radiodurans

Creator:: Lewis, Norman Francis
Abstract:: Comparatively little work has been done on bacterial lipids. There are profound differences between bacterial lipids in general and lipids of the higher forms of life in such respects as the absence of sterols, phospholipids low in nitrogen but high in inositol and carbohydrate, the presence of large proportions of...
Resource Type:: Masters Thesis
Full Text:: deeply indebted to my major Professor, Dr. A. W. Anderson, for his excellent supervision, continuous

The terminal reactions in the biosynthesis of methionine in Saccharomyces cerevisiae

Creator:: Pigg, C. JoAnne
Abstract:: The terminal reactions in the biosynthetic pathway of methionine in Saccharomyces cerevisiae were investigated in this study. Analyses of a number of methionine auxotrophs for biochemical deficiences established four mutant groups. It was observed from qualitative feeding experiments that some auxotrophs were able to utilize S-adenosylmethionine (AM) and S-adenosyl-homocysteine (AH)...
Resource Type:: Dissertation
Full Text:: thesis is presented Typed by Ruth Baines May 10, 1965 ACKNOWLEDGMENTS I wish to thank Dr. Leo W

Gamma irradiation patterns of Salmonella typhosa, Salmonella paratyphi B, and Salmonella wichita in crabmeat

Creator:: Dyer, John Kaye
Abstract:: Studies were conducted under controlled conditions in order to observe the resulting survival patterns in solid crabmeat of Salmonella typhosa, Salmonella paratyphi B, and SaImonella wichita following individual exposure to various doses of gamma radiation. As shown in their survival curves, these species of Salmonella exhibited in varying degrees a...
Resource Type:: Masters Thesis
Full Text:: the preparation of this thesis: To Dr. A. W. Anderson for his advice and help in this study; To Dr

ScholarsArchive@OSU

Comparative Genomics of Freshwater Bloom-Forming Cyanobacteria and Associated Organisms

Advances in Freshwater Cyanobacterial Genomics

Comparative Growth Study of Toxic and Non-Toxic Microcystis aeruginosa Strains under Oxidative Stress Conditions

Influence of slash burning on microbial population and activities in a Douglas-fir forest soil

The role of methionine in the metabolism of Micrococcus radiodurans

Biosynthesis of yeast sterols

Significance of pigments in radiation resistance of Micrococcus radiodurans

Studies on the lipid and fatty acid composition of Micrococcus radiodurans

The terminal reactions in the biosynthesis of methionine in Saccharomyces cerevisiae

Gamma irradiation patterns of Salmonella typhosa, Salmonella paratyphi B, and Salmonella wichita in crabmeat

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