Index Catalog // ScholarsArchive@OSU

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:: especially during the thesis preparation. Sincere thanks are extended to my commitee members, Dr. Joyce

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:: thank my committee members, Lewis Semprini, Joyce Loper, and Larry Curtis for their time and interest

Secreted Agrobacterium rhizogenes Effector Protein GALLS Interacts with Arabidopsis Host Proteins and Stimulates Agrobacterium-mediated Transformation

Creator:: Wei, Wei
Abstract:: Agrobacterium species transform plant cells by targeting a portion of plasmid-encoded bacterial DNA to the host nucleus. Genetic transformation by A. tumefaciens and A. rhizogenes requires secreted effector proteins. The tumor-inducing (Ti) plasmid from virulent A. tumefaciens encodes VirE2, a secreted single-stranded DNA-binding protein required for efficient transformation of hosts....
Resource Type:: Dissertation
Full Text:: appreciation to my committee members Dr. Jeff Chang, Dr. Joyce Loper, Dr. Martin Schuster, and Dr. Tom

Purification and properties of Streptococcus lactis β-galactosidase

Creator:: McFeters, Gordon A.
Abstract:: Experiments were carried out to purify and characterize the galactosidase of the Streptococcus lactis 7962. Purification was accomplished using standard procedures; however the lability of the enzyme to numerous treatments limited the techniques that could be used and the amount of active enzyme recovered. Gel filtration revealed that the enzyme...
Resource Type:: Dissertation
Full Text:: -GALACTOSIDASE Abstract approved: Redacted for Privacy W. E. Sandine Experiments were carried out to

Ecology and applications of cutaneous mechanisms of resistance to amphibian chytridiomycosis

Creator:: Nebergall, Emily E.
Abstract:: Amphibian biodiversity is in rapid global decline, due in part to the fungal disease chytridiomycosis, caused by Batrachochytrium dendrobatidis (Bd). Susceptibility to Bd and chytridiomycosis varies between species and populations. Skin peptides and symbiotic skin bacteria appear to be important mechanisms of Bd resistance. However, not much is known about...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Emily E

Characterization of the Plasmids of the Pathogenic Plant Bacterium Erwinia amylovora in Washington and Oregon

Creator:: Carey, Alyssa B.
Abstract:: Erwinia amylovora is a plant pathogenic bacterium that causes the destructive disease fire blight of apple and pear. We examined the plasmid content of a collection of 305 isolates of E. amylovora from Washington and Oregon with PCR assays and RFLP. Nearly all isolates of E. amylovora carried plasmid pEA29,...
Resource Type:: Honors College Thesis
Full Text:: of E. amylovora from Washington and Oregon with PCR assays and RFLP. Nearly all isolates of E

Fecal Bacteroidetes host distributions and environmental source tracking

Creator:: Dick, Linda K.
Abstract:: Contamination of recreational and shellfish waters with fecal pollution is a major water quality issue with associated economic impacts and human health risks. Reliable fecal source identification and rapid, quantitative analyses are essential components of risk assessment. Enteric bacteria that are endemic to specific hosts have a potential role as...
Resource Type:: Dissertation
Full Text:: rapid than the E. coli assay. PCR source identification and enumeration of fecal Bacteroidetes 1 6S

Studies on partially purified malic dehydrogenase from the marine psychrophile, Vibrio marinus

Creator:: Langridge, Patricia
Resource Type:: Masters Thesis
Full Text:: Sephadex G-200 gel. The intracellular er,zyrr,e was found to be stable between 0 C and the organisrnrs

Quantification of Osmolytes in the Sargasso Sea Surface Layer Water Column

Creator:: Muslin, Omran
Abstract:: Oceanic carbon cycling plays a major role in determining global atmospheric CO₂. A better understanding of dissolved organic matter and its constituents in the water column and how it affects marine carbon cycling is sought after. This study successfully measured osmolytes, low molecular zwitterionic compounds derived from amino acids, in...
Resource Type:: Masters Thesis
Full Text:: ………………………………………………………………… E. The Carbon Cycle ….…………………………………………………………. . F. Mass Spectrometry

Contribution of native plasmids to fitness of Pantoea vagans C9-1, a biological control agent for fire blight of apple and pear

Creator:: Klein, Jeannie M.
Abstract:: Pantoea vagans C9-1 (C9-1) is a biological control agent sprayed onto apple and pear trees during bloom for suppression of fire blight, a devastating bacterial disease caused by Erwinia amylovora. Prior bioinformatics studies of C9-1 focused on predicted phenotypes associated with the three native megaplasmids, pPag1, pPag2, and pPag3, and...
Resource Type:: Honors College Thesis
Full Text:: Joyce E. Loper Committee Member, Associate Dean, College of Agricultural Sciences Toni Doolen

ScholarsArchive@OSU

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

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

Secreted Agrobacterium rhizogenes Effector Protein GALLS Interacts with Arabidopsis Host Proteins and Stimulates Agrobacterium-mediated Transformation

Purification and properties of Streptococcus lactis β-galactosidase

Ecology and applications of cutaneous mechanisms of resistance to amphibian chytridiomycosis

Characterization of the Plasmids of the Pathogenic Plant Bacterium Erwinia amylovora in Washington and Oregon

Fecal Bacteroidetes host distributions and environmental source tracking

Studies on partially purified malic dehydrogenase from the marine psychrophile, Vibrio marinus

Quantification of Osmolytes in the Sargasso Sea Surface Layer Water Column

Contribution of native plasmids to fitness of Pantoea vagans C9-1, a biological control agent for fire blight of apple and pear

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