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Microbiology of soil aggregates recovered from different crop management systems

Creator:: Mendes, Iêda de Carvalho
Resource Type:: Dissertation
Full Text:: Microbiology of soil aggregates recovered from different crop

Evaluation of effectiveness of Rhizobium trifolii strains for Trifolium subterraneum L. (subterranean clover) in southwestern Oregon soils

Creator:: Kibbey, Heather Jean
Abstract:: Twelve high effective Rhizobium trifolii strains were evaluated at four locations in southwest Oregon for the ability to effectively nodulate Mount Barker subterranean clover. All twelve strains possessed antibiotic resistance markers to facilitate identification of strains when extracted from nodules. No significant differences in plant dry weight means could be...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Heather Jean Kibbey for the degree of in Microbiology Master of Science presented on July 9

Survival of fecal coliform bacteria in sludge-amended soils

Creator:: Hartel, Peter G.
Abstract:: A study was conducted to determine the effects or temperature, solar radiation, rainfall, and saturated flow on fecal coliform numbers in sewage sludge-amended soils. To determine this, four 4.6 X 13.7 m field plots were each amended in summer and in winter with 800 liters of anaerobically-digested sewage sludge, and...
Resource Type:: Dissertation
Full Text:: Doctor of Philosophy in Microbiology presented on May 18, 1983 Title: Survival of Fecal Coliform

Factors affecting a bioassay for Agrobacterium tumefaciens in natural soil

Creator:: Jaeger, Joy Rae
Abstract:: Tomato seedlings were used to assay the population of A. tumefaciens in artificially contaminated soil. Aqueous soil suspensions were applied directly to the wounded stem. The bioassay was used because not all pathologically important physiological strains of A. tumefaciens would grow on any of the selective media available. This method...
Resource Type:: Masters Thesis
Full Text:: of General Microbiology 43( 1): 7-17. 12, Dickey, R. S. 1961. Relation of some edaphic factors to

Influence of carbon:nitrogen ratio on microbial respiration by pure and mixed cultures in soil and synthetic media

Creator:: Keesling, James Worth
Resource Type:: Masters Thesis

Movement of labeled Escherichia coli through western Oregon hillslope soils under conditions of saturated flow

Creator:: Rahe, Terrance M.
Resource Type:: Masters Thesis

Root symbionts and soil microorganisms associated with actinorrhizal plants

Creator:: Rose, Sharon Lee
Abstract:: Symbiotic associations are established between non-leguminous (actinorrhizal) nitrogen-fixing flowering plants and two categories of microorganisms: mycorrhizal fungi and a filamentous actinomycete. The actinomydete induces nodule formation and produces nitrogenase, the enzyme responsible for the reduction of atmospheric nitrogen to a form available to higher plants. The mycorrhizal fungus is found...
Resource Type:: Dissertation

Symbiotic and saprophytic characteristics of a soil population of Rhizobium leguminosarum bv. trifolii

Creator:: Yap, Kathryn H. M.
Abstract:: Although much has been learned about the comparative nodulating behavior of simple mixtures of rhizobial strains under non-soil situations, it is unclear how these findings relate to the factors influencing nodulation success by the complex mixtures of strains found within soil-borne rhizobial populations. Information on the structure and physiological behavior...
Resource Type:: Masters Thesis
Full Text:: degree of Master of Science in Microbiology presented on July 12, 1991. Title: Symbiotic and

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:: for the (Name) in Microbiology (Major) Ph. D. (Degree) presented on August 30, 1967 (Date

Microbial changes and interactions in the rhizosphere of vesicular-arbuscular mycorrhizal plants

Creator:: Meyer, Julie (Julie Rae)
Abstract:: The influence of vesicular-arbuscular mycorrhizae (VAM) on populations of general taxonomic and functional groups of naturally-occurring rhizosphere bacteria and actinomycetes associated with roots of sweet corn (Zea mays var. rugosa) and subterranean clover (Trifolium subterraneum L.) was assayed using selective media. Sporangial production by Phytophthora cinnamomi was also used as...
Resource Type:: Masters Thesis
Full Text:: establishment of the VA mycorrhizal association will influence the microbiology of the rhizosphere. Studies on

ScholarsArchive@OSU

Microbiology of soil aggregates recovered from different crop management systems

Evaluation of effectiveness of Rhizobium trifolii strains for Trifolium subterraneum L. (subterranean clover) in southwestern Oregon soils

Survival of fecal coliform bacteria in sludge-amended soils

Factors affecting a bioassay for Agrobacterium tumefaciens in natural soil

Influence of carbon:nitrogen ratio on microbial respiration by pure and mixed cultures in soil and synthetic media

Movement of labeled Escherichia coli through western Oregon hillslope soils under conditions of saturated flow

Root symbionts and soil microorganisms associated with actinorrhizal plants

Symbiotic and saprophytic characteristics of a soil population of Rhizobium leguminosarum bv. trifolii

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

Microbial changes and interactions in the rhizosphere of vesicular-arbuscular mycorrhizal plants

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