Index Catalog // ScholarsArchive@OSU

The non-enzymatic formation of nitric oxide from soil and clay systems

Creator:: Wullstein, L. H. (Leroy H.)
Abstract:: Prevailing concepts relating to the non-enzymatic gaseous loss of nitrite from soil are thought to be inadequate as regards to the mechanisms involved. The conventional explanation for nitric oxide formation i.e., the acid decomposition of nitrite, is held to be insufficient in substrates of only mild or slight acidity. A...
Resource Type:: Dissertation
Full Text:: The Non-Enzymatic Formation of Nitric Oxide From Soil and

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:: paratvphl 9: and SaImonella wichiEa followlng indivldual exposure to various doses of gamma radiation. As

Influence of interplanted and pure stands of red alder (Alnus rubra Bong.) on microbial and chemical characteristics of a coastal forest soil in the Douglas-fir region

Creator:: Chen, Chi-sin
Abstract:: Chemical and microbial analyses were made at four seasonal intervals on soil horizons under red alder, conifers, and mixed alder-conifers at the Cascade Head Experimental Forest, established in 1937 by the U. S. Forest Service near Otis, Oregon. Microbial analyses showed that although plate counts of molds and bacteria fluctuated...
Resource Type:: Dissertation
Full Text:: Microbiology (Name) (Degree) (Major) Date thesis is presented 49 Title INFLUENCE OF INTERPLANTED AND PURE

Factors related to resisitance of bacteria to quaternary ammonium germicides

Creator:: Wang, Wei-sheng
Abstract:: This study was carried out to compare the effects of a quaternary ammonium compound (QAC) upon strains of Pseudomonas aeruginosa which were either sensitive or resistant to the germicide. The cationic QAC used was alkyldimethylbenzylammonium chloride. The resistant types were isolated from the sensitive population by selection of mutants which...
Resource Type:: Masters Thesis
Full Text:: methods. The Weber and Black method was used to determine the germicidal effect of QAC at a low

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:: ecological study of a microorganism similar to that iso- lated in 1956 and designated as Micrococcus

Control of acid production and β-galactosidase synthesis in lactic streptococci

Creator:: Citti, James Edward
Abstract:: The public health and economic significance of rapid acid production by lactic streptococci in controlled dairy fermentations is well known. However, the fast acid-producing characteristic of these organisms is not stable, and cultures of fast organisms have been shown to contain slow cells. These studies were carried out to characterize...
Resource Type:: Dissertation
Full Text:: public health and economic significance of rapid acid pro- duction by lactic streptococci in controlled

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:: Studies on the lipid and fatty acid composition of

Thermal inactivation studies on some enzymes from Vibrio marinus, an obligately psychrophilic marine bacterium

Creator:: Mathemeier, Paul Fredrick
Abstract:: Some enzymes of the citric acid cycle and glycolytic pathway in cell-free extracts of Vibrio marinus MP-1 were compared for thermal lability. After one hour of moderate temperature exposure, enzymes of both pathways rapidly lost catalytic activity. For all but one enzyme, 50 percent remaining activity occurred near an averaged...
Resource Type:: Dissertation
Full Text:: the citric acid cycle and glycolytic pathway in cell -free extracts of Vibrio marinus MP -1 were

Thermally induced leakage and viability studies in an obligate psychrophilic marine bacterium

Creator:: Kenis, Paul Robert
Abstract:: Vibrio marinus MP-1, an obligate psychrophilic marine bacterium, was severely damaged when heat-shocked in the presence of nutrients. Thermally induced leakage materials from cells tested for in the medium were 260 mμ absorbing material (nucleic acids), orcinol reacting material (RNA), ninhydrin reacting material (amino acids), protein, malic dehydrogenase, and glucose-6-phosphate...
Resource Type:: Masters Thesis
Full Text:: : . . . . . . Dr. R. Y. Morita for his guidance and encouragement. Public Health Service Training Grant 5GM00704

Purification and properties of Streptococcus lactis β-galactosidase

Creator:: McFeters, Gordon A.
Abstract:: Experiments were carried out to purify and characterize the galactosidase of the Streptococcus lactis 7962. Purification was accomplished using standard procedures; however the lability of the enzyme to numerous treatments limited the techniques that could be used and the amount of active enzyme recovered. Gel filtration revealed that the enzyme...
Resource Type:: Dissertation
Full Text:: Public Health Service research grant EFG9 from the Division of Environmental Engineer- ing and Food

ScholarsArchive@OSU

The non-enzymatic formation of nitric oxide from soil and clay systems

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

Influence of interplanted and pure stands of red alder (Alnus rubra Bong.) on microbial and chemical characteristics of a coastal forest soil in the Douglas-fir region

Factors related to resisitance of bacteria to quaternary ammonium germicides

Significance of pigments in radiation resistance of Micrococcus radiodurans

Control of acid production and β-galactosidase synthesis in lactic streptococci

Studies on the lipid and fatty acid composition of Micrococcus radiodurans

Thermal inactivation studies on some enzymes from Vibrio marinus, an obligately psychrophilic marine bacterium

Thermally induced leakage and viability studies in an obligate psychrophilic marine bacterium

Purification and properties of Streptococcus lactis β-galactosidase

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