Index Catalog // ScholarsArchive@OSU

Partial purification and characterization of hemolysin from a psychrotrophic Kanagawa positive marine vibrio

Creator:: Huggins, Susan Peters
Abstract:: Psychrotrophic Kanagawa positive marine vibrios distinct from V. parahaemolyticus were isolated from shellfish collected in Yaquina Bay, Oregon. Sample enrichment in GSTB was followed by culture isolation on TCBS agar. The 235 vibrio isolates obtained were screened for gram reaction and morphology, Kanagawa reaction on Wagatsuma agar and their response...
Resource Type:: Masters Thesis
Full Text:: VIBRIO Redacted for Privacy Abstract approved: Dr. R. Y. Morita Psychrotrophic Kanagawa positive

Transformation of alfalfa using Agrobacterium tumefaciens

Creator:: Gelford, Inga L.
Abstract:: Agrobacterium tumefaciens, the causative agent of crown gall disease, does not readily infect commercial varieties of alfalfa (Medicago sativa). Cloned virulence genes from the megaplasmid pTiBo542 have been shown to enhance Agrobacterium host range and infectivity on dicotyledonous plants. To obtain a gene transfer system for commercial alfalfa cultivars, an...
Resource Type:: Masters Thesis
Full Text:: RNA polymerase isolated from A. tumefaciens (R. Tait and C. Kado, unpublished data). Chromosomal

Germicide effectiveness and taxonomic studies on microbial isolates from meat and poultry plants

Creator:: Schwartz, James
Abstract:: A large number of bacterial and yeast isolates were obtained from meat and poultry processing plants by swab and contact plate sampling methods. Most of the isolates were subjected to a brief taxonomic study and listed according to their sources. Representative food spoilage, indicator and pathogenic organisms were identified to...
Resource Type:: Masters Thesis
Full Text:: approved: Redacted for Privacy Paul R. Elliker A large number of bacterial and yeast isolates were

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:: AN ABSTRACT OF THE THESIS OF Rockie R. Yarwood for the degree

Bacterial pathogens and associated toxins involved in erythrophore cell aggregation

Creator:: Hutchison, Janine R.
Abstract:: Current detection methods for bacterial contamination rely on structure based detection of proteins and nucleic acids. While these methods are easy to use and reliable, they cannot evaluate the toxicity of a sample and the potential to cause disease. Previously, erythrophore cells derived from Betta splendens had been suggested as...
Resource Type:: Dissertation
Full Text:: OF THE DISSERTATION OF Janine R. Hutchison for the degree of Doctor of Philosophy in Microbiology

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:: ranging from 5.4 to 6.2. Woogenellup and Mount Barker were the subclover test varieties used. The R

Nitrite dissimilation by microorganisms incapable of efficient nitrate utilization : nutritional and ecological considerations

Creator:: Vangnai, Somsak
Resource Type:: Dissertation
Full Text:: of Miyobino`gy Redacted for Privacy I V Dean of Graduate School Date thesis is presented r) Typed

Ecology of a soil population of Rhizobium leguminosarum bv. trifolii

Creator:: Leung, Kam-tin
Resource Type:: Dissertation
Full Text:: plant rhizospheres and unplanted soil. 117 LIST OF TABLES Table 2.1 Serotypes of R. leguminosarum

Exploring phylogeny of Rhodococcus fascians isolates using 16S ribosomal DNA sequence analysis

Creator:: Sandberg, Eva Song
Abstract:: Rhodococcus fascians is a Gram-positive, pleiomorphic actinomycete that causes leafy gall formation in a wide range of plant hosts. This particular phytopathogen has been a focus of research at the Oregon State University Plant Clinic, a diagnostic laboratory. Phylogeny of R. fascians isolates obtained from Plant Clinic submissions was determined...
Resource Type:: Honors College Thesis
Full Text:: Oregon State University Plant Clinic, a diagnostic laboratory. Phylogeny of R. fascians isolates

Studies on growth metabolites produced by Propionibacterium shermanii

Creator:: Salih, Mohammed Ali
Abstract:: The ability of Propionibacterium shermanii to produce growth metabolites which were inhibitory to food spoilage indicator organisms was investigated. Asperqillus niqer, a Pseudomonas species and Kluyveromyces fraqilis were the spoilage indicators chosen to represent molds, gram negative psychrotrophic bacteria and yeasts, respectively. Supplementation of milk or whey based media was...
Resource Type:: Dissertation
Full Text:: R-5. The enzyme appeared to be an oxygen sensitive selenoprotein. Differences in selenite and

ScholarsArchive@OSU

Partial purification and characterization of hemolysin from a psychrotrophic Kanagawa positive marine vibrio

Transformation of alfalfa using Agrobacterium tumefaciens

Germicide effectiveness and taxonomic studies on microbial isolates from meat and poultry plants

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

Bacterial pathogens and associated toxins involved in erythrophore cell aggregation

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

Nitrite dissimilation by microorganisms incapable of efficient nitrate utilization : nutritional and ecological considerations

Ecology of a soil population of Rhizobium leguminosarum bv. trifolii

Exploring phylogeny of Rhodococcus fascians isolates using 16S ribosomal DNA sequence analysis

Studies on growth metabolites produced by Propionibacterium shermanii

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