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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:: DIFFERENT SOILS Abstract approved: Redacted for privacy Walter B. Bollen The effect of Endothal (3, 6

Rhizosphere microfloras associated with mycorrhizae of Douglas-fir and red alder

Creator:: Neal, John Lloyd
Abstract:: The mycorrhizal rootlets of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco.) and red alder (Alnus rubra Bong.) were extensively investigated. A jet-black mycorrhiza was found to be dominant on Douglas-fir rootlets. The fungal symbiont was identified as Cenococcum graniforme (Sow.) Ferd. and Winge. Two forms of mycorrhizae predominated on root systems of...
Resource Type:: Dissertation
Full Text:: ASSOCIATED WITH MYCORRHIZAE OF DOUGLAS -FIR AND RED ALDER Abstract approved Dr. Walter B. Bollen The

Survival and persistence of Bacteroidales human and ruminant specific fecal markers and occurrence with fecal pathogens

Creator:: Walters, Sarah P.
Abstract:: Aquatic fecal contamination from non-point sources impairs environmental health and serves as a vehicle for transmission of waterborne disease, resulting in economic losses worldwide. Accurate methods of diagnosing fecal pollution and its source are needed to prevent human exposure, remediate pollution, and reduce economic impacts. In order to obtain this...
Resource Type:: Dissertation
Full Text:: willingness to discuss science with me. Micah Walter and Carolyn Petersen provided humor, friendship, and

Pseudoloma neurophilia : progression of infection and transmission characteristics of a microsporidian parasite in a model vertebrate, Danio rerio

Creator:: Sanders, Justin L.
Abstract:: The microsporidian parasite, Pseudoloma neurophilia, is the most commonly diagnosed infectious disease in laboratory populations of the zebrafish, Danio rerio. Infections by P. neurophilia are generally subclinical, however, they can become acute either incidentally or due to experimental immune suppression. Non-protocol induced variation can confound results in laboratory experiments using...
Resource Type:: Dissertation
Full Text:: animals (Baker, 1998, 2003; de Kinkelin, 1980; Troemel et al., 2008). In addition to the direct impacts

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:: -lactose, D-mannose, iodoacetic acid, and NaCN (J. T. Baker 17 Chemical Co. , Phillipsburg, N. J. ); D

Genetic mapping and physiological characterization of RNA polymerase mutants of Bacillus subtilis

Creator:: Haworth, Stephen Randall
Resource Type:: Dissertation
Full Text:: tryptophan and methionine supplements were omitted. Reagents Liquified phenol (J. T. Baker Chem. Co

Conjugal transfer of plasmid genes between lactic Streptococcus and Leuconostoc starter bacteria

Creator:: Tsai, Huai-jen
Abstract:: Mutants of Streptococcus lactis 7962 with various combinations of plasmid molecular masses were screened for nisin production. Nisin was produced by both wild type and mutants that contained a 17.5 Md plasmid, which was usually obscured by the chromosomal fragments. No nisin was produced by plasmid-free mutants. Sucrose fermentation and...
Resource Type:: Dissertation
Full Text:: , tubes were inverted several times during incubation. Also, 0.1% of 8-Quinolinol (J. T. Baker Chemical

The association of DNA with other cellular materials in Escherichia coli lysates

Creator:: Porter, Bruce Wallace
Abstract:: The association of other materials with DNA has been studied extensively in higher organisms and more recently in bacteria. However, investigation of these complexes in bacteria have for the most part been restricted to the study of a specific function this association may serve, or a specific kind of association....
Resource Type:: Dissertation
Full Text:: and then lined with a flexible plastic sheet. Washed potato starch (Baker analyzed reagent

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:: ACKNOWLEDGMENTS The writer expresses his deepest appreciation to Dr. Walter B. Bollen, professor of microbiology

Impacts of Environmental Change on a Newly-characterized Symbiosis between a Novel Bacterial Parasite, Genus Aquarickettsia, and the Coral Acropora cervicornis

Creator:: Klinges, J. Grace
Abstract:: Coral reef ecosystems continue to be significantly altered by disease epizootics, but why some host populations remain resistant while others succumb to outbreaks remains unknown. Research across diverse animal and plant host systems has revealed that disease severity is strongly influenced by host genetics and by environmental influences on both...
Resource Type:: Dissertation
Full Text:: , and Dr. Lydia Baker. Becca, Adriana, and Emily, I couldn’t have gotten through this process without

ScholarsArchive@OSU

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

Rhizosphere microfloras associated with mycorrhizae of Douglas-fir and red alder

Survival and persistence of Bacteroidales human and ruminant specific fecal markers and occurrence with fecal pathogens

Pseudoloma neurophilia : progression of infection and transmission characteristics of a microsporidian parasite in a model vertebrate, Danio rerio

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

Genetic mapping and physiological characterization of RNA polymerase mutants of Bacillus subtilis

Conjugal transfer of plasmid genes between lactic Streptococcus and Leuconostoc starter bacteria

The association of DNA with other cellular materials in Escherichia coli lysates

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

Impacts of Environmental Change on a Newly-characterized Symbiosis between a Novel Bacterial Parasite, Genus Aquarickettsia, and the Coral Acropora cervicornis

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