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Measurement of microbial biomass phosphorus in Oregon soils

Creator:: Claycomb, Peter T.
Resource Type:: Masters Thesis
Full Text:: Abstract approved: I/ Redacted for Privacy Peter J. Botto Microbial mineralization of phosphorus (P

Interactions between microbial dynamics, water flow, and solute transport in unsaturated porous media

Creator:: Yarwood, Rockie R.
Abstract:: Bioremediation in the vadose zone is unpredictable because of poor understanding of factors influencing microbial growth in this environment. A lab-scale experimental system was developed to examine, noninvasively, interactions between microbial growth, water flow, and solute transport in unsaturated porous media. Measurements of microbial colonization, and its impact on hydrology,...
Resource Type:: Dissertation
Full Text:: : Peter J. Bioremediation in the vadose zone is unpredictable because of poor understanding of factors

Influences of phosphate on the growth and nodulation characteristics of Rhizobium trifolii

Creator:: Leung, Kam-tin
Abstract:: Nodulation success by two indigenous Rhizobium trifolii serogroups, 6 and 36, on subterranean clover (Trifolium subterraneum L.) was affected by the addition of phosphate to Abiqua soil (Ultic Haploxeroll). To understand the impact of phosphorus nutrition on the survival and nodulation characteristics of the two serogroups, studies were carried out...
Resource Type:: Masters Thesis
Full Text:: Nodulation Characteristics of Rhizobium Trifolii Abstract approved: Redacted for privacy Pfber J. Bottomley

Characteristics of bradyrhizobium sp. recovered from Oregon soils

Creator:: Cheng, Hsin-hua
Abstract:: Although the biology of Bradyrhizobium has been studied for almost one hundred years, virtually nothing is known about the ecology and genetic variation in natural soil populations of this genus. The majority of information has been obtained from studies of one species, Bradyrhizobium japonicum, and the diversity within soil populations...
Resource Type:: Masters Thesis
Full Text:: soils. Redacted for Privacy Abstract Approved: Peter J. Bottoy Although the biology of

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

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

Community profiles of ammonia oxidizers across high-elevation forest-to-meadow transects

Creator:: Mintie, Ann
Abstract:: In recent years considerable interest has been shown in the diversity of ammonia-oxidizing bacteria in soil communities. The majority of the research has been carried out in Northern Europe where soils have received high atmospheric inputs of nitrogen over the past two centuries. In contrast, although much work has been...
Resource Type:: Masters Thesis
Full Text:: Oxidizers Across High-Elevation Forest-to- Peter J. Bottomley In recent years considerable interest has

Characterization of indigenous Rhizobium leguminosarum bv. trifolii isolated from annual and perennial species of Trifolium

Creator:: Dashti, Narjes Haje
Resource Type:: Masters Thesis
Full Text:: Perennial Species of Trifolium. Abstract approved: Redacted for Privacy Peter J. Bottomley ,/ In previous

An epifluorescence method for assessing viability of bacteria in soil aggregates

Creator:: Shiozawa, Tracy L.
Resource Type:: Masters Thesis
Full Text:: Viability of Bacteria in Soil Aggregates. Abstract approved: Peter J. Bottoml For the past 40 years

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:: Redacted for Privacy Abstract approved: Peter J. Bott6mley Although much has been learned about the

ScholarsArchive@OSU

Measurement of microbial biomass phosphorus in Oregon soils

Interactions between microbial dynamics, water flow, and solute transport in unsaturated porous media

Influences of phosphate on the growth and nodulation characteristics of Rhizobium trifolii

Characteristics of bradyrhizobium sp. recovered from Oregon soils

Control of alkane monooxygenase activity and expression in Pseudomonas butanovora

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

Community profiles of ammonia oxidizers across high-elevation forest-to-meadow transects

Characterization of indigenous Rhizobium leguminosarum bv. trifolii isolated from annual and perennial species of Trifolium

An epifluorescence method for assessing viability of bacteria in soil aggregates

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

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