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The synergetic effects of starvation and hydrostatic pressure on uptake of alpha-aminoisobutyric acid by a psychrophilic marine vibrio

Creator:: Yorgey, Peter Scott
Resource Type:: Masters Thesis
Full Text:: of two hours and above were predominantly used. No significant incorporation of AIB into protein

Characterization of antibiotic resistant enteric bacteria that contaminate vegetables

Creator:: Salama, Maysoon
Abstract:: Previous studies revealed the high incidence of drug resistant bacteria from foods. In this study, market vegetables were tested for their contamination with antibiotic resistant (ABR) enteric bacteria. A total of 402 bacterial strains from surface vegetables (e.g., lettuce) and 321 from root vegetables (e.g., carrots) were examined for their...
Resource Type:: Masters Thesis
Full Text:: of 402 bacterial strains from surface vegetables (e.g., lettuce) and 321 from root vegetables (e.g

Glucose uptake and catabolism in the marine psychrophilic bacterium, Vibrio marinus

Creator:: Griffiths, Robert Porter
Abstract:: The effects of various physical parameters on the binding, uptake, and catabolism of glucose in the marine psychrophilic bacterium, Vibrio marinus, were studied. It was shown that shortly after the cell was exposed to labeled glucose, the radioactive label became rapidly associated with the cell fraction. It was also shown...
Resource Type:: Dissertation
Full Text:: was shown that there were no significant pattern shifts associated with the maximum growth salinity

An investigation of carbon and nitrogen metabolism through a genomic analysis of the genus Nitrobacter

Creator:: Starkenburg, Shawn R.
Abstract:: The chemolithoautotrophic nitrite oxidizing bacteria (NOB) participate in the biogeochemical cycling of nitrogen by catalyzing and conserving energy from the oxidation of nitrite (NO₂-) to nitrate (NO₃-) via a nitrite oxidoreductase (NXR). The main objective of this work was to comparatively annotate and analyze the genome sequences of Nitrobacter winogradskyi...
Resource Type:: Dissertation
Full Text:: detected under anaerobic conditions. Although production of NO under aerobic conditions was not detected

Incidence and significance of bacterial chitinase in the marine environment

Creator:: Goodrich, Thomas Dale
Abstract:: The marine vibrio ANT-500 is a typical psychrophile. The growth range of the bacterium at 35‰ S is from a maximum growth temperature of 13.5 C to a minimum growth temperature of -2.5 C or less with the optimum near 7 C. The bacterium elaborates its chitinase enzymes between the...
Resource Type:: Dissertation
Full Text:: chitinoclasts in the gut, and chitinase activity and percent chitinoclasts. Fish with little or no chitinous

Ion and salinity effects on induction and function of galactose permease in an Antarctic psychrophilic marine bacterium

Creator:: Hayasaka, Steven Shin
Abstract:: A number of Antarctic marine psychrophilic bacteria were isolated having the ability to grow and accumulate ¹⁴ C-TMG only at temperatures below 20 C. It was shown that galactose rather than lactose was the primary inducer and utilizable substrate for the permease system. Further studies with a Vibrio species (Ant-12),...
Resource Type:: Dissertation
Full Text:: systems and their mechanism of operation has proved no exception. Genetic and biochemical studies have

Transcriptome profiling of Nitrosomonas europaea grown singly and in co-culture with Nitrobacter winogradskyi

Creator:: Pérez, José
Abstract:: In most environments, ammonia (NH₃) is oxidized to nitrate (NO₃⁻) via the intermediate nitrite (NO₂⁻). This is a microbe-driven process involving phylogenetically distinct types of microorganisms, namely, ammonia-oxidizing bacteria (AOB) and Thaumarchaea (AOA), and nitrite-oxidizing bacteria (NOB). Nitrosomonas europaea and Nitrobacter winogradskyi are the best studied AOB and NOB, respectively,...
Resource Type:: Masters Thesis
Full Text:: then 2 transformed by denitrification into nitric oxide (NO), nitrous oxide (N2O) and

Factors affecting mitochondrial respiration in yeast

Creator:: Hough, Susan Carol
Abstract:: Two experimental approaches have been used to investigate the interaction of sterols with respiration in yeast. Cells were tested with an antifungal sterol, azasterol, and a mutant was obtained with an altered sterol composition. Polarographic measurements were done on mitochondria for both experiments. The effects of azasterol on mitochondrial respiration...
Resource Type:: Masters Thesis
Full Text:: , polarographic measurements with ethanol as substrate showed no coupling of mitochondria in the range of 25-50

The biosynthesis of ethylene from methionine in Saccharomyces cerevisiae

Creator:: Jones, Paul Aikens
Abstract:: Methionine metabolism, leading to the biosynthesis of ethylene in Saccharomyces cerevisiae does not appear to involve S-adenosylmethionine (SAM) and aminocyclopropanecarboxylic acid (ACC), based on the lack of ethylene synthesis when both SAM and ACC were incubated in the presence and absence of cells. Thus, the mechanism leading to the formation...
Resource Type:: Masters Thesis
Full Text:: higher plants. Incubation of cells without methionine included in the reaction mixture formed no

Effect of Endothal and certain other selective herbicides on microbial activity in six different soils

Creator:: Au, Frederick Hung Fo
Abstract:: The effect of Endothal (3, 6-endoxyhexahydrophthalic acid), sodium pentachlorophenate (Na-PCP) and TD-47 (di-N, N-dimethylcocoamine salt of Endothal) on the microbial populations, ammonification, nitrification and respiration in six different soils was investigated. It was found that Endothal at 20 and 200 ppm had no adverse effect on the microbial population, ammonification,...
Resource Type:: Dissertation
Full Text:: soils was investi- gated. It was found that Endothal at 20 and 200 ppm had no adverse effect on the

ScholarsArchive@OSU

The synergetic effects of starvation and hydrostatic pressure on uptake of alpha-aminoisobutyric acid by a psychrophilic marine vibrio

Characterization of antibiotic resistant enteric bacteria that contaminate vegetables

Glucose uptake and catabolism in the marine psychrophilic bacterium, Vibrio marinus

An investigation of carbon and nitrogen metabolism through a genomic analysis of the genus Nitrobacter

Incidence and significance of bacterial chitinase in the marine environment

Ion and salinity effects on induction and function of galactose permease in an Antarctic psychrophilic marine bacterium

Transcriptome profiling of Nitrosomonas europaea grown singly and in co-culture with Nitrobacter winogradskyi

Factors affecting mitochondrial respiration in yeast

The biosynthesis of ethylene from methionine in Saccharomyces cerevisiae

Effect of Endothal and certain other selective herbicides on microbial activity in six different soils

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