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Characterization of lignocellulose decomposition in stream wood samples using ¹⁴C and ¹⁵N techniques

Creator:: Aumen, Nicholas G.
Resource Type:: Dissertation
Full Text:: stream wood samples using ¹⁴C and ¹⁵N techniques AN ABSTRACT OF THE THESIS OF Nicholas G. Aumen for

Growth characteristics of 2,4-dichlorophenoxyacetic acid degrading bacteria recovered from an Oregon soil

Creator:: Phillips, David C.
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF David C. Phillips for the degree

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:: Disturbances: Implications for Soil Quality and Land Use Sustainability Abstract approved: Peter J

Delineation of the composition of an indigenous soil population of Rhizobium meliloti in root nodules of uninoculated field grown Medicago sativa L.

Creator:: Jenkins, Michael B.
Abstract:: Agronomic and microbiological studies were conducted on "Anchor" alfalfa (Medicago sativa L.) established from uninoculated seed on three Aridisols in central Oregon. Significant responses to 230 Kg N per ha (NH₄NO₃), which was applied in mid-April and after each first and second harvests, were observed in yield parameters of the...
Resource Type:: Dissertation
Full Text:: : Redacted for privacy Peter J. Bottomley Agronomic and microbiological studies were conducted on "Anchor

Impact of a red clover winter cover crop on carbon and nitrogen mineralization by microorganisms in soil aggregates

Creator:: Ndiaye, Aissatou
Abstract:: Although legumes have been widely studied for their nitrogen-fixing ability, it is uncertain to what extent legume cover crops achieve their nitrogen-fixing potential under the climatic conditions encountered in western Oregon. Furthermore, it is unknown what factors control the proportions of legume cover crop N that are either sequestered into...
Resource Type:: Masters Thesis
Full Text:: readily mineralizable C and N were measured in both whole soil samples and in different aggregate -size

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:: :__________________________________________________ Peter J. Bottomley The regulation of monooxygenase enzymes has been demonstrated in

Measurement of microbial biomass phosphorus in Oregon soils

Creator:: Claycomb, Peter T.
Resource Type:: Masters Thesis
Full Text:: soils AN ABSTRACT OF THE THESIS OF Peter T. Claycomb for the degree of Master of Science in Soil

Population genetic structure and ecology of Rhizobium leguminosarum

Creator:: Strain, Steven R.
Resource Type:: Dissertation
Full Text:: , CV, CT) of the two biovars (V and T) on two field sites (A and C) in Oregon, and from populations of

Metabolism of dichloroethenes by the butane-oxidizing bacterium 'Pseudomonas butanovora'

Creator:: Doughty, David M.
Abstract:: Reductive dechlorination of chlorinated ethenes is dependent upon suitable substrates promoting microbial activity and creating anaerobic conditions. At the periphery of active reductive dechlorinating zones combinations of lesser chlorinated ethenes should exist along with end products of the anaerobic metabolism that is driving reductive dechlorination. Potential end-products of anaerobic metabolism...
Resource Type:: Masters Thesis
Full Text:: the Butane- oxidizing Bacterium 'Pseudomonas butanovora'. Abstract approved:__ Peter J. Bottomlèy

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:: : ___________________________________________________________ Peter J. Bottomley The chemolithoautotrophic nitrite oxidizing bacteria (NOB) participate

ScholarsArchive@OSU

Characterization of lignocellulose decomposition in stream wood samples using ¹⁴C and ¹⁵N techniques

Growth characteristics of 2,4-dichlorophenoxyacetic acid degrading bacteria recovered from an Oregon soil

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

Delineation of the composition of an indigenous soil population of Rhizobium meliloti in root nodules of uninoculated field grown Medicago sativa L.

Impact of a red clover winter cover crop on carbon and nitrogen mineralization by microorganisms in soil aggregates

Control of alkane monooxygenase activity and expression in Pseudomonas butanovora

Measurement of microbial biomass phosphorus in Oregon soils

Population genetic structure and ecology of Rhizobium leguminosarum

Metabolism of dichloroethenes by the butane-oxidizing bacterium 'Pseudomonas butanovora'

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

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