Index Catalog // ScholarsArchive@OSU

Characterization of the pathogenicity and phylogeny of members of the Rhodococcus genus

Creator:: Creason, Allison L.
Abstract:: Plant pathogenic Rhodococcus species are persistent pathogens able to cause severe growth deformities on a large range of hosts. The most well studied species, R. fascians is predicted by current models to synthesize a mixture of cytokinins that act to directly perturb the hosts' hormone balances, which results in abnormal...
Resource Type:: Dissertation
Full Text:: Rhodococcus Genus. Abstract approved: ______________________________________________________ Jeff H

Investigation of unique marine environments for microbial natural products

Creator:: Thornburg, Christopher C.
Abstract:: Metagenomics has revealed that the marine microbial biosphere is immensely more diverse than originally considered, and is an almost untapped reservoir for the potential discovery of microbial natural products. Despite numerous advances in culturing, biosynthetic engineering and genomic-based screening efforts to uncover much of this diversity in relatively accessible environments,...
Resource Type:: Dissertation
Full Text:: Sea has led to the identification of five new cyclic depsipeptides, apratoxin H, grassypeptolides D

Impacts of multispecies parasitism on coho salmon (Oncorhynchus kisutch) in Oregon

Creator:: Ferguson, Jayde A.
Abstract:: Diseases caused by parasites are recognized as significant sources of mortality in wild fish populations. I assessed the impacts of multispecies parasitism on a threatened stock of juvenile coho salmon (Oncorhynchus kisutch). A crucial prerequisite to this research was proper identification of parasites, which can be difficult for species lacking...
Resource Type:: Dissertation
Full Text:: . ................................................................................................... 157 Figure 5.2. Histological sections (H&E) of muscle parasites in coho salmon (Oncorhynchus

Evaluation of the colonization and biofilm production by Burkholderia pyroccinia FP62 on geranium leaves

Creator:: Wallace, Patricia K.
Abstract:: The leaf surface is a stark environment for bacterial colonists with limited availability of nutrients, water and protected niches. Despite these limitations, a plethora of bacteria appear to have adapted ways to survive and flourish on leaf surfaces. One mechanism of survival is the formation of biofilms. Biofilms are a...
Resource Type:: Masters Thesis
Full Text:: nutrients (Wagner, 1991) that increase the carrying capacity of the leaf surface compared to other plants

Disease models and infectious phenotypes of Mycobacterium avium subspecies paratuberculosis

Creator:: Everman, Jamie L.
Abstract:: Mycobacterium avium subspecies paratuberculosis (MAP) is the causative agent of Johne's disease, a chronic inflammatory bowel disease that affects ruminant populations worldwide. The characteristic stages of the disease make diagnosis difficult, resulting in silent transmission among animals in a herd for years before proper detection of the infection. The extensive...
Resource Type:: Dissertation

Bacterial community analysis, new exoelectrogen isolation and enhanced performance of microbial electrochemical systems using nano-decorated anodes

Creator:: Xu, Shoutao
Abstract:: Microbial electrochemical systems (MESs) have attracted much research attention in recent years due to their promising applications in renewable energy generation, bioremediation, and wastewater treatment. In a MES, microorganisms interact with electrodes via electrons, catalyzing oxidation and reduction reactions at the anode and the cathode. The bacterial community of a...
Resource Type:: Dissertation
Full Text:: , different types of MESs can be P E M R H+ e- e- A n o d e B a c te ria a C a th o d e

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:: MGCs. Either MGCs or THP- 1 cells were infected with WT M. avium A5 for 4 h……………………………….…..59 2.6

Chromatophores as cell-based biosensors for the detection of chemically and biologically toxic substances

Creator:: Dukovcic, Stephanie R.
Abstract:: Cell-based biosensors are function-based detectors that use the physiological response of a living cell to sense biologically stimulating agents. This emerging technology extends the application of current detection methods by reporting on the toxicity of a sample and the potential to cause disease. Previously, Betta splendens erythrophores have been described...
Resource Type:: Dissertation
Full Text:: (somatic) and H (flagellar) antigens, and is now configured using a serotype-specific antigenic scheme

The role of Salmonella typhimurium type three secretion system (T3SS) and effector proteins in chromatophore cell response.

Creator:: Farhad, Mohammad
Abstract:: Bacterial contamination of food poses a great risk to human health worldwide. A chromatophore cell-based biosensor, utilizing B. splendens erythrophore cells, is an emerging technology that has shown potential to detect bacterial toxicity based on function-dependent mechanisms. Previous studies have investigated the response of erythrophore cells to foodborne pathogens, pesticides,...
Resource Type:: Masters Thesis
Full Text:: 7 classification based on somatic (O), flagellar (H), Capsular (K) antigens and virulence (Vi

Biophysical analyses of peroxiredoxins and a partner reductase

Creator:: Hall, Andrea Renée
Abstract:: Peroxiredoxins (Prxs) are dominant peroxide-reducing enzymes with two important roles: they protect all organisms from oxidative damage induced by peroxides, and in eukaryotes, they participate in hydrogen peroxide signaling pathways. This dissertation presents studies aimed at the biophysical characterization of select Prxs and a Prx reductase to elucidate their structure-function...
Resource Type:: Dissertation
Full Text:: ................................................................................... 174 chemical shifts comparison ........................... 174 15 H/D exchange

ScholarsArchive@OSU

Characterization of the pathogenicity and phylogeny of members of the Rhodococcus genus

Investigation of unique marine environments for microbial natural products

Impacts of multispecies parasitism on coho salmon (Oncorhynchus kisutch) in Oregon

Evaluation of the colonization and biofilm production by Burkholderia pyroccinia FP62 on geranium leaves

Disease models and infectious phenotypes of Mycobacterium avium subspecies paratuberculosis

Bacterial community analysis, new exoelectrogen isolation and enhanced performance of microbial electrochemical systems using nano-decorated anodes

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

Chromatophores as cell-based biosensors for the detection of chemically and biologically toxic substances

The role of Salmonella typhimurium type three secretion system (T3SS) and effector proteins in chromatophore cell response.

Biophysical analyses of peroxiredoxins and a partner reductase

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