Index Catalog // ScholarsArchive@OSU

R factor transfer among bacteria isolated from the environment

Creator:: Latimer, Joan Marie
Resource Type:: Masters Thesis
Full Text:: E. coli biotypes, and one R factor, (Tc, Amp), showed predominance in some samples taken

Identification of an aerotaxis transducer in Vibrio cholerae

Creator:: Boin, Markus A.
Abstract:: The ability to move towards favorable environmental conditions, called chemotaxis, is common among motile bacteria. In particular aerotaxis has been extensively studied in Escherichia coli. Three putative aer gene homologs were identified in the V. cholerae genome designated VCAer-1 (VC0512) VCAer-2 (VCA0658), and VCAer-3 (VCA0988). Deletion analyses indicated that only...
Resource Type:: Masters Thesis
Full Text:: particularly aerotaxis in the biology of V. cholerae, including its environmental and infectious life stages

Assessing disease impacts of hatcheries on downstream salmonids in the Willamette River Basin, Oregon

Creator:: Jakaitis, Michelle
Abstract:: Hatcheries are often perceived as a source of pathogen amplification, potentially increasing disease risk to free-ranging populations; at the same time, free-ranging fishes may introduce pathogens into hatcheries through untreated water sources. Many pathogens exist naturally within the environment (with the exception of introduced pathogens) and the presence of a...
Resource Type:: Masters Thesis
Full Text:: some mitigating strategies. Reviews in Fish Biology and Fisheries 19(1):9– 31. Krkošek, M., M. A

A partial characterization of the immune response to polyvinyl pyrrolidone

Creator:: Adams-Burton, Catherine Ruth
Resource Type:: Masters Thesis
Full Text:: . Investigations of the possible role of cyclic AMP (cAM) and PGE as second messengers in the activation of lympho

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:: manufacturer's recommendations. After plating 1 OO-tl aliquots of each transformed culture onto LB/amp/IPTG/X

Characterization of an immunoreactive region of the major capsid protein for infectious pancreatic necrosis virus

Creator:: Barrie, Rosemary Jean
Abstract:: DNA fragments of the gene for VP2, the major capsid protein of Infectious Pancreatic Necrosis Virus (IPNV), were expressed in Escherichia coli and characterized immunologically with antisera made to different serotypes of IPNV. The entire VP2 gene was excised from the plasmid pUC19/A+SΔK and fragmented with restriction enzyme Sau3A1. The...
Resource Type:: Masters Thesis
Full Text:: replica plated onto nitrocellulose (NC) and the NC was overlayed on LB/amp plates. After the colonies

DNA vaccines encoding the glycoprotein genes of spring viremia of carp virus, snakehead rhabdovirus, or infectious hematopoietic necrosis virus induce protective immunity in rainbow trout (Oncorhynchus mykiss) against an infectious hematopoietic necrosis virus lethal challenge

Creator:: Drennan, John D.
Abstract:: Recent advances in DNA vaccine technology has brought about a promising strategy for the control of viruses that contain surface membrane glycoproteins. This type of vaccine involves the intramuscular injection of a bacterial plasmid containing a gene encoding a viral protein. The strategy uses eukaryotic processing of the protein as...
Resource Type:: Masters Thesis

Search for protein-protein interactions underlying the cis-preferential replication of turnip yellow mosaic virus

Creator:: Wallace, S. Ellen
Abstract:: Coreplication experiments have revealed that replication of turnip yellow mosaic virus (TYMV) RNA in turnip protoplasts is cis-preferential. Genomes encoding mutant p141 or p66, proteins essential for virus replication, were inefficiently rescued by a helper genome. One model for the cis-preferential replication of TYMV is that p66 and p141 form...
Resource Type:: Masters Thesis

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:: resistance to AMP activity is low, likely due to the diversity of AMP structure and the costly nature of

The discriminator domain : does it reside at the C-terminus or the N-terminus of Escherichia coli Lon?

Creator:: Miller, Darcey L.
Abstract:: The mechanisms of substrate recognition by regulatory proteases are not well understood. Presently, two opposing models have arisen to describe E. coil Lon's ability to discriminate between substrates: one suggests the N-terminus involvement while the second suggests the C-terminus involvement. In this project, the role of the C-terminal domain as...
Resource Type:: Masters Thesis

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

The Genomic Capabilities of Microbial Communities Track Seasonal Variation in Arctic Lagoons

Creator:: Baker, Kristina D.
Abstract:: The lagoons spanning Alaska’s Beaufort Sea coast provide a unique habitat for arctic wildlife. These lagoons and the food webs they support face extreme seasonality with nine months of ice cover followed by a spring thaw that pulses a large amount of freshwater and nutrients into the lagoons. Bacteria link...
Resource Type:: Masters Thesis

Regulating polysaccharide synthesis in bacteria

Creator:: Chen, Donald D.
Resource Type:: Masters Thesis
Full Text:: understanding of molecular and cellular biology, and I thank them for their efforts. I particularly thank Drs

An analysis of Sargasso Sea bacterioplankton diversity using 16S ribosomal RNA

Creator:: Britschgi, Theresa Baden
Abstract:: The objective of this project was to use ribosomal RNA genes, cloned from natural populations of Sargasso Sea bacterioplankton, as markers for picoplankton diversity. It is widely recognised that a majority of microorganisms have yet to be cultivated, and therefore much of extant microbial diversity remains unknown (50). The method...
Resource Type:: Masters Thesis
Full Text:: biology. Although PCR errors may occur, through careful sequence analysis, phylogenetic trees may be

Analysis of Bacteroidales 16S rRNA gene sequences from a geographically isolated human population

Creator:: Petersen, Carolyn A.
Abstract:: Standard methods of measuring fecal pollution in water do not distinguish between human and non-human sources. Molecular technology enabled the development of host-specific markers that distinguish fecal sources. Human specific PCR primers, HF183F and HF134F, were designed based on phylogenetic analyses of partial 16S rRNA gene sequences from the Bacteroidales...
Resource Type:: Masters Thesis

Developing a system of mutagenesis in Francisella tularensis LVS

Creator:: Flax, Lindsay A.
Abstract:: Francisella tularensis is a gram-negative facultative intracellular coccobacillus that primarily infects macrophages. The causative agent of tularemia, this bacterium is considered among the most infectious organisms known, requiring fewer than ten organisms to cause disease. Although ubiquitous in nature, transmission to humans is rare but can occur via insect bites,...
Resource Type:: Masters Thesis
Full Text:: –TOPO Plasmid backbone Amp R Selection in E. coli pBAD – TOPO Plasmid backbone 25 pFT

Silencing of Agrobacterium tumefaciens T-DNA oncogenes by cosuppression

Creator:: Lee, Hyewon
Abstract:: We have developed crown-gall resistant transgenic plants capable of suppressing Agrobacterium tumefaciens T-DNA oncogenes. Crown gall tumors result from overproduction of auxin and cytokinin in plant cells transformed by A. tumefaciens. High phytohormone levels result from expression of two auxin biosynthetic genes, tryptophan monooxygenase (iaaM) and indole acetamide hydrolase (iaaH),...
Resource Type:: Masters Thesis
Full Text:: isopentenyl-AMP (Akiyoshi et al., 1984; Barry et al., 1984) (Figure 1.2). Gene 5 modulates the activity of

Effects of propionibacterial metabolites on spoilage and pathogenic bacteria in dairy products

Creator:: Teo, Alex Yeow-Lim
Resource Type:: Masters Thesis

Characterization of novel exopolysaccharide producing lactic acid bacteria

Creator:: Garcia, Roberto A., III
Abstract:: Lactic Acid Bacteria (LAB), an important group of organisms in modern food production, are known to secrete a unique compound called exopolysaccharide (EPS). EPS is economically important because it enhances functional properties in food and may confer beneficial health effects to consumers. Novel strains of Lactococcus lactis, Streptococcus thermophilus, and...
Resource Type:: Masters Thesis
Full Text:: from a myriad scientific disciplines, including microbiology, biology, engineering, chemistry, and

Studies on glucose-6-phosphate dehydrogenase obtained from Vibrio marinus, an obligate marine psychrophile

Creator:: Miller, Wayne Warren
Abstract:: Four-fold partially purified glucose-6-phosphate dehydrogenase (G-6-PDH) from the obligately psychrophilic marine bacterium Vibrio marinus was effected by thermally induced leakage of the enzyme, ammonium sulfate fractionation and column chromatography on Sephadex G-200 gel. The effects of temperature, pressure, salinity, and pH were determined for the various degrees of enzyme purity....
Resource Type:: Masters Thesis
Full Text:: (21), ATP (56), AMP (45), phosphate (21), iodide (17), heavy metals such as magnesium, mercury and

ScholarsArchive@OSU

R factor transfer among bacteria isolated from the environment

Identification of an aerotaxis transducer in Vibrio cholerae

Assessing disease impacts of hatcheries on downstream salmonids in the Willamette River Basin, Oregon

A partial characterization of the immune response to polyvinyl pyrrolidone

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

Characterization of an immunoreactive region of the major capsid protein for infectious pancreatic necrosis virus

DNA vaccines encoding the glycoprotein genes of spring viremia of carp virus, snakehead rhabdovirus, or infectious hematopoietic necrosis virus induce protective immunity in rainbow trout (Oncorhynchus mykiss) against an infectious hematopoietic necrosis virus lethal challenge

Search for protein-protein interactions underlying the cis-preferential replication of turnip yellow mosaic virus

Ecology and applications of cutaneous mechanisms of resistance to amphibian chytridiomycosis

The discriminator domain : does it reside at the C-terminus or the N-terminus of Escherichia coli Lon?

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

The Genomic Capabilities of Microbial Communities Track Seasonal Variation in Arctic Lagoons

Regulating polysaccharide synthesis in bacteria

An analysis of Sargasso Sea bacterioplankton diversity using 16S ribosomal RNA

Analysis of Bacteroidales 16S rRNA gene sequences from a geographically isolated human population

Developing a system of mutagenesis in Francisella tularensis LVS

Silencing of Agrobacterium tumefaciens T-DNA oncogenes by cosuppression

Effects of propionibacterial metabolites on spoilage and pathogenic bacteria in dairy products

Characterization of novel exopolysaccharide producing lactic acid bacteria

Studies on glucose-6-phosphate dehydrogenase obtained from Vibrio marinus, an obligate marine psychrophile

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