Index Catalog // ScholarsArchive@OSU

Control of alkane monooxygenase activity and expression in Pseudomonas butanovora

Creator:: Doughty, David M.
Abstract:: The regulation of monooxygenase enzymes has been demonstrated in bacteria that grow on methane and long chain-length alkanes (>C10). Less is known about monooxygenase regulation in short chain alkane oxidizing bacteria that grow on intermediate chain-length alkanes C2-C10. This dissertation focuses on the regulation of butane monooxygenase (BMO) expression and...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF David M. Doughty

Soil community dynamics in sagebrush and cheatgrass-invaded ecosystems of the northern Great Basin

Creator:: DeCrappeo, Nicole M.
Abstract:: Sagebrush steppe ecosystems in the Great Basin have become increasingly threatened by the proliferation of cheatgrass (Bromus tectorum L.), an invasive annual grass. Diverse sagebrush and perennial bunchgrass landscapes can be converted to homogenous cheatgrass grasslands mainly through the effects of fire. Although the consequences of this conversion are well...
Resource Type:: Dissertation
Full Text:: Nicole M. DeCrappeo for the degree of Doctor of Philosophy in Soil Science presented on June 8, 2010

Response of soil microbial communities to physical and chemical disturbances: implications for soil quality and land use sustainability

Creator:: Chaer, Guilherme M.
Abstract:: The objectives of this thesis were to evaluate the responses of soil microbial communities to physical and chemical disturbances, and associate these responses with soil functional stability and changes in soil quality. The first study consisted of application of heat shocks (HS) to soils with contrasting land use history to...
Resource Type:: Dissertation
Full Text:: DISSERTATION OF Guilherme M. Chaer for the degree of Doctor of Philosophy in Soil Science presented

Physiological consequences of trichloroethylene degradation by the toluene-oxidizing bacterium Burkholderia cepacia G4

Creator:: Yeager, Chris M.
Abstract:: A number of bacterial species are capable of degrading the widespread environmental pollutant trichloroethylene (TCE) via aerobic cometabolism, but cytotoxic effects that can debilitate the microorganism often accompany this transformation. In this dissertation the effects of TCE degradation on the well-studied, toluene-oxidizing bacterium Burkholderia cepacia G4 were investigated at the...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Chris M. Yeager for the degree of

Population genetic structure and ecology of Rhizobium leguminosarum

Creator:: Strain, Steven R.
Resource Type:: Dissertation
Full Text:: ) gel in TAE buffer (0.04 M Tris-acetate, 0.001 M EDTA), electrophoresed for 7 h at approximately 55

Influences of soil acidity and variety of plant on the populations of Rhizobium trifolii found in nodules of Trifolium subterraneum L.

Creator:: Dughri, Muktar H.
Abstract:: Complementary methods of strain identification were sought to delineate the composition of the population of Rhizobium trifolii found in nodules of Trifolium subterraneum L. when exposed to an Abiqua silty clay loam (Cumulic Ultic Haploxeroll) containing a resident population of R. trifolii. Sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDSPAGE) was...
Resource Type:: Dissertation
Full Text:: among rhizobia (Graham, 1963), and by the fact that isolates that do not cross react with the

Novel characteristics (Intra and Ex planta) of indigenous serogroups of rhizobium meliloti

Creator:: Busse, Matt D.
Abstract:: This thesis presents novel findings regarding symbiotic, physiological, and antigenic characteristics of representatives from an indigenous soil-borne population of Rhizobium meliloti. Nodules were sampled from 'Vernal', 'Anchor', and 'Saranac' alfalfa, and the isolates analyzed serologically. Rhizobium meliloti serogroup 31 was identified as a dominant nodule occupant, with a greater and...
Resource Type:: Dissertation
Full Text:: (38 x 53 m). Two plants, inclusive of their root systems to a depth of 0.4 m, were sampled within

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

Ecology of a soil population of Rhizobium leguminosarum bv. trifolii

Creator:: Leung, Kam-tin
Resource Type:: Dissertation
Full Text:: serotype AS6 was found throughout the 100 x 200 m field, and it persisted over a 4-yr period (1987 to

ScholarsArchive@OSU

Control of alkane monooxygenase activity and expression in Pseudomonas butanovora

Soil community dynamics in sagebrush and cheatgrass-invaded ecosystems of the northern Great Basin

Response of soil microbial communities to physical and chemical disturbances: implications for soil quality and land use sustainability

Physiological consequences of trichloroethylene degradation by the toluene-oxidizing bacterium Burkholderia cepacia G4

Population genetic structure and ecology of Rhizobium leguminosarum

Influences of soil acidity and variety of plant on the populations of Rhizobium trifolii found in nodules of Trifolium subterraneum L.

Novel characteristics (Intra and Ex planta) of indigenous serogroups of rhizobium meliloti

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

Ecology of a soil population of Rhizobium leguminosarum bv. trifolii

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