Index Catalog // ScholarsArchive@OSU

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:: single amino acid conversion of alanine to threonine at residue 289 of L2 toxin component of HBL. This

Antimicrobial resistance and plasmid properties of Leuconostoc and group N Streptococcus

Creator:: Orberg, Paulo K.
Abstract:: A method for rapid isolation of plasmid DNA from group N streptococci was developed. Chief advantages of the method were simplicity, the utilization of microliter quantities of reagents, and the obtainment of preparations highly enriched for covalently closed circular plasmid DNA. The method was also applied to over 15 Leuconostoc...
Resource Type:: Dissertation
Full Text:: , and the obtainment of preparations highly enriched for covalently closed circular plasmid DNA. The

What is killing the corals? Viral and bacterial interrogations using metagenomics and microscopy

Creator:: Soffer, Nitzan
Abstract:: Corals have multiple roles in maintaining ocean health and are some of the world’s most diverse ecosystems. The coral animal is host to a multitude of taxa, including symbiotic dinoflagellate algae, fungi, bacteria, protists, and viruses. Environmental stressors and disease agents can perturb the delicate balance of the coral host...
Resource Type:: Dissertation
Full Text:: seawater (n=2). After comparing the viromes, I found that small circular REP- encoding eukaryotic ssDNA

Deoxyribonucleic acid hybridization and plasmid studies in the genus Lactobacillus

Creator:: Sriranganathan, Nammalwar
Abstract:: Using thermal denaturation methodology, the nucleic acid base composition of deoxyribonucleic acid (DNA) isolated from type, neotype and stock strains of Lactobacillus species was determined. The genus was found to be heterogeneous in base composition, ranging from 33.1 to 50.0 moles % guanine plus cytosine (GC). Genus members fell into...
Resource Type:: Dissertation
Full Text:: circular plasmid DNA prepared using the Kleinscbrnidt technique (x 80, 000), 49 1 3. Absorbance vs

Factors related to resisitance of bacteria to quaternary ammonium germicides

Creator:: Wang, Wei-sheng
Abstract:: This study was carried out to compare the effects of a quaternary ammonium compound (QAC) upon strains of Pseudomonas aeruginosa which were either sensitive or resistant to the germicide. The cationic QAC used was alkyldimethylbenzylammonium chloride. The resistant types were isolated from the sensitive population by selection of mutants which...
Resource Type:: Masters Thesis
Full Text:: . 289- 299). They found that these compounds, in relatively low concentration, strongly in- hibited

Characterization of antibiotic resistant enteric bacteria that contaminate vegetables

Creator:: Salama, Maysoon
Abstract:: Previous studies revealed the high incidence of drug resistant bacteria from foods. In this study, market vegetables were tested for their contamination with antibiotic resistant (ABR) enteric bacteria. A total of 402 bacterial strains from surface vegetables (e.g., lettuce) and 321 from root vegetables (e.g., carrots) were examined for their...
Resource Type:: Masters Thesis
Full Text:: circular nucleic acid elements (19, 21, 22, 40) which replicate autonomously (45) and are of various sizes

Immune responses of juvenile chinook salmon (Oncorhynchus tshawytscha) to p,p-̓DDE and tributyltin

Creator:: Misumi, Ichiro
Abstract:: In this thesis, we examined the effects of the exposures to anthropogenic pollutants on the fish, primarily juvenile chinook salmon, immune system using newly and recently developed immune assays. In addition, we developed a new assay for measuring immunocompetence of fish. In the first chapter, the Alamar Blue assay was...
Resource Type:: Masters Thesis
Full Text:: months. The fish were maintained in 0.9 rn-diameter circular fiberglass tanks supplied with 12-13 °C

The Genome of Pseudomonas fluorescens Strain R124 Demonstrates Phenotypic Adaptation to the Mineral Environment

Creator:: Barton, Michael D., Petronio, Michael, Giarrizzo, Juan G., Bowling, Bethany V., and Barton, Hazel A.
Abstract:: Microbial adaptation to environmental conditions is a complex process, including acquisition of positive traits through horizontal gene transfer or the modification of existing genes through duplication and/or mutation. In this study, we examined the adaptation of a Pseudomonas fluorescens isolate (R124) from the nutrient-limited mineral environment of a silica cave...
Resource Type:: Article
Full Text:: product, indicating that this molecule was a circular plasmid, which we designated pMP- R124. The plasmid

Exploration of the Phage Adsorption Mechanism in Mycobacterium abscessus Toward Improving the Efficacy of Current Antibiotics

Creator:: Gorzynski, Mylène
Abstract:: Background: Mycobacterium abscessus (MAB) is a rapidly growing opportunistic pathogen that causes infections in immunocompromised patients. The highly impermeable cell wall and surface transport systems are major contributing factors to MAB intrinsic resistance, influencing the efficacy of bactericidal antibiotics. Phages are promising alternatives to antibiotics and have been used in...
Resource Type:: Masters Thesis

Bioinformatics applied to freshwater cyanobacterial blooms and cyanophage

Creator:: Schwartz, Andrew D.
Abstract:: Freshwater cyanobacterial blooms are a nuisance and health threat in the Pacific Northwest. The accepted methods of characterizing these blooms by microscopic cell counts cannot differentiate between toxic and non-toxic strains of the cyanobacterium Microcystis. Also, there is limited understanding of freshwater cyanophage that may control bloom dynamics. In order...
Resource Type:: Masters Thesis
Full Text:: ......................................................................................................... 52 Figure 3.3. Circular genetic map showing the gene organization of phage S-CRM01

ScholarsArchive@OSU

Bacterial pathogens and associated toxins involved in erythrophore cell aggregation

Antimicrobial resistance and plasmid properties of Leuconostoc and group N Streptococcus

What is killing the corals? Viral and bacterial interrogations using metagenomics and microscopy

Deoxyribonucleic acid hybridization and plasmid studies in the genus Lactobacillus

Factors related to resisitance of bacteria to quaternary ammonium germicides

Characterization of antibiotic resistant enteric bacteria that contaminate vegetables

Immune responses of juvenile chinook salmon (Oncorhynchus tshawytscha) to p,p-̓DDE and tributyltin

The Genome of Pseudomonas fluorescens Strain R124 Demonstrates Phenotypic Adaptation to the Mineral Environment

Exploration of the Phage Adsorption Mechanism in Mycobacterium abscessus Toward Improving the Efficacy of Current Antibiotics

Bioinformatics applied to freshwater cyanobacterial blooms and cyanophage

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