Index Catalog // ScholarsArchive@OSU

Further Understanding Mycobacterial Biofilms and Their Interaction with the Host

Creator:: Rose, Sasha J.
Abstract:: Respiratory infections caused by nontuberculous mycobacteria (NTM), especially Mycobacterium avium, can lead to progressive, recurrent disease that is refractory to therapy. Bacterial biofilms are intrinsically resistant to a variety of stressors and pressures, including host killing mechanisms and antibiotic therapy. Though it is becoming increasingly evident that NTM biofilms are...
Resource Type:: Dissertation
Full Text:: Sasha J. Rose for the degree of Doctor of Philosophy in Microbiology presented on March 15, 2016

Characterization of Mycobacterium avium subsp. hominissuis Interactions with Host Macrophages and Multinucleated Giant Cells

Creator:: Joseph, Jayanthi J.
Abstract:: To examine the macrophage response to M. avium, I compared inflammasome and cytosolic sensor expression and activation. My result demonstrated that virulent strains of M. avium (A5 and 104) suppress IL-1β production and induce IFN-β production in macrophages. M. avium mutants deficient at DNA export in the biofilm exhibited reduced...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Jayanthi J. Joseph for the degree of Doctor of Philosophy in

Virulence factors of Aeromonas salmonicida and their interaction with the salmonid host

Creator:: Rockey, Daniel D.
Abstract:: Selected secreted and cellular virulence factors of Aeromonas salmonicida were examined. A protocol was developed for the separation of two secreted proteases (P1 and P2 protease), and a trout erythrocyte specific hemolysin (T-lysin) from supernatants of cultures of the bacterium. Distinctions between the proteases were demonstrated using molecular weight determinations,...
Resource Type:: Dissertation
Full Text:: and from the N. L. Tartar Fellowship Fund. CONTRIBUTION OF AUTHORS Dr. J. S. Rohovec and Dr. J. L

Indigenous Rhizobium trifolii isolated from nodules of red clover grown in subclover pasture soils

Creator:: Valdivia de Capó, Blanca
Resource Type:: Masters Thesis
Full Text:: : Redacted for Privacy 7- Peter J. Bottomley A series of identification methods were used to determine the

Symbiotic and ecological behavior of indigenous serotypes of Rhizobium leguminosarum bv. trifolii

Creator:: Demezas, David H.
Resource Type:: Dissertation
Full Text:: : Redacted for privacy Peter J. Bottomley Rhizobium trifolii isolates obtained from nodules of

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

Specific indicator organisms can define the magnitude and origins of non-point pollution in rural environments

Creator:: Lamka, Karla Gail
Abstract:: A comprehensive study was made on the impact to surface and ground water pollution by a recently populated rural neighborhood located in the foothills of western Oregon. A stream originating in a limited access forest and flowing through a modern zoned housing development was routinely monitored. Sampling was performed during...
Resource Type:: Masters Thesis
Full Text:: microorganisms in man. Gastroenterology. 53:845-855. 29. Hardy, Margaret A., Harry P. Dalton, and Marvin J

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

Origin, incidence, and survival of Salmonella in a rural watershed

Creator:: Bolf, Ronald Bruce
Abstract:: A rural watershed containing a protected forest area in the north and a small rural community in the south was monitored for numbers of fecal indicator bacteria as well as the incidence and origin of the enteric pathogen Salmonella. Isolation of Salmonella only occurred once in the protected watershed, while...
Resource Type:: Masters Thesis
Full Text:: . M., W. D. Lowery, and A. V. Hardy. 1954. Salmonella in fresh and smoked pork sausage. J. Infect

Disturbances in a marine bacterioplankton system drive community assembly towards niche-based processes

Creator:: Vergin, Kevin L.
Abstract:: Over 100 monthly bacterioplankton DNA samples, from each of the surface and 200 m depths at the Bermuda Atlantic Time-series Study (BATS) site, were analyzed for community assembly processes. Correlation networks, filtered for potential autocorrelation artifacts, were constructed for each depth. Network characteristics for the two depths were remarkably similar...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: ______________________________________________________ Stephen J. Giovannoni

ScholarsArchive@OSU

Further Understanding Mycobacterial Biofilms and Their Interaction with the Host

Characterization of Mycobacterium avium subsp. hominissuis Interactions with Host Macrophages and Multinucleated Giant Cells

Virulence factors of Aeromonas salmonicida and their interaction with the salmonid host

Indigenous Rhizobium trifolii isolated from nodules of red clover grown in subclover pasture soils

Symbiotic and ecological behavior of indigenous serotypes of Rhizobium leguminosarum bv. trifolii

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

Specific indicator organisms can define the magnitude and origins of non-point pollution in rural environments

Characteristics of bradyrhizobium sp. recovered from Oregon soils

Origin, incidence, and survival of Salmonella in a rural watershed

Disturbances in a marine bacterioplankton system drive community assembly towards niche-based processes

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