Index Catalog // ScholarsArchive@OSU

The Social Interactions of Pseudomonas aeruginosa

Creator:: Smith, Parker
Abstract:: Pseudomonas aeruginosa is a ubiquitous environmental microbe, opportunistic pathogen, and a highly social organism. P. aeruginosa utilizes a wide array of cooperative behaviors to adapt to the environmental conditions around it. These behaviors include quorum sensing (QS), a form a cell-to-cell signaling that coordinates the expression of secreted products in...
Resource Type:: Dissertation
Full Text:: committee, Dr. Stephen Giovannoni, Dr. Ryan Mueller, Dr. Patrick De Leenheer, Dr. Frank Chaplen, and Dr

Structural analysis of thermally inactivated nisin

Creator:: Musafija-Jeknic, Tamara
Abstract:: Nisin, an antimicrobial peptide used in food preservation was evaluated for thermal stability. Nisin retained antimicrobial activity after having been heated at 121°C for seven hours. Anhydrous nisin and concentrated nisin solutions (5-10 mg/ml) were still active after having been heated up to 190°C or 230°C. When exposed to high...
Resource Type:: Masters Thesis
Full Text:: widely distributed in populations of Lactococcus lactis (de Vos et al., 1993). 1 Dairy Lactococci

Influence of iron concentration on the expression of the ferripyoverdine receptor gene FpvAIIb of Pseudomonas aeruginosa

Creator:: Glover, Rochelle and Schuster, Martin
Abstract:: Pseudomonas aeruginosa is an environmental bacterium which opportunistically infects humans. Commonly residing in irondepleted environments, P. aeruginosa uses iron-chelating molecules called siderophores to scavenge iron from its environment. The most prevalent siderophore used by P. aeruginosa is known as pyoverdine. After the cell synthesizes and secretes pyoverdine, the molecule binds...
Resource Type:: Poster
Full Text:: . Meyer JM, Stintzi A, De Vos D, Cornelis P, Tappe R, Taraz K, Budzikiewicz H. 1997. Use of siderophores

Development and use of genetic techniques for study of dairy Leuconostoc bacteria

Creator:: Wyckoff, Herbert Allen, 1961-
Resource Type:: Dissertation
Full Text:: . in Bacterial Starter Cultures. CRC Press. Boca Raton. 7. David, S., G. Simons, and W. M. de Vos

The Fitness Costs and Regulatory Strategies of Cooperative Siderophore Production in Pseudomonas

Creator:: Sexton, David
Abstract:: Cooperative behaviors in bacteria are increasingly appreciated for their relevance to microbial ecology and utility as model systems for social evolution. One example is the secretion of siderophores, a structurally diverse group of compounds that chelate extracellular iron. Siderophore production is considered cooperative because the benefits can be shared with...
Resource Type:: Dissertation
Full Text:: the rhizosphere (Loper and Buyer, 1991; De Vos et al., 2001; D’Onofrio et al., 2010). Several

Fecal Bacteroidetes host distributions and environmental source tracking

Creator:: Dick, Linda K.
Abstract:: Contamination of recreational and shellfish waters with fecal pollution is a major water quality issue with associated economic impacts and human health risks. Reliable fecal source identification and rapid, quantitative analyses are essential components of risk assessment. Enteric bacteria that are endemic to specific hosts have a potential role as...
Resource Type:: Dissertation
Full Text:: gnotobiology. Microbiol. Mol. Biol.Rev. 62:1157-1170. Favier, C. F., E. E. Vaughan, W. M. De Vos, and A. D. L

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

Conjugal transfer of plasmid genes between lactic Streptococcus and Leuconostoc starter bacteria

Creator:: Tsai, Huai-jen
Abstract:: Mutants of Streptococcus lactis 7962 with various combinations of plasmid molecular masses were screened for nisin production. Nisin was produced by both wild type and mutants that contained a 17.5 Md plasmid, which was usually obscured by the chromosomal fragments. No nisin was produced by plasmid-free mutants. Sucrose fermentation and...
Resource Type:: Dissertation
Full Text:: . Ir. J. Fd. Sci. Technol. 7: 49-60. 6. de Vos, W. M., H. M. Underwood, and F. L. Davies. 1984

Immune response and protection against Streptococcus pyogenes after vaccination with Lactococcus lactis that expresses conserved region of M6 protein

Creator:: Mannam, Praveen
Abstract:: Most pathogens gain access to their host through mucosal surfaces. It is therefore desirable to develop mucosal vaccines that elicit an immune response to prevent this crucial first step in infection. Current mucosal vaccines are live attenuated strains of pathogens. More recent efforts have focused on the use of recombinant...
Resource Type:: Masters Thesis

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:: fluorometrically. While Alamar Blue has been used to assess mammalian lymphocytes (Ahmed et al., 1994; de Fries

ScholarsArchive@OSU

The Social Interactions of Pseudomonas aeruginosa

Structural analysis of thermally inactivated nisin

Influence of iron concentration on the expression of the ferripyoverdine receptor gene FpvAIIb of Pseudomonas aeruginosa

Development and use of genetic techniques for study of dairy Leuconostoc bacteria

The Fitness Costs and Regulatory Strategies of Cooperative Siderophore Production in Pseudomonas

Fecal Bacteroidetes host distributions and environmental source tracking

Characterization of novel exopolysaccharide producing lactic acid bacteria

Conjugal transfer of plasmid genes between lactic Streptococcus and Leuconostoc starter bacteria

Immune response and protection against Streptococcus pyogenes after vaccination with Lactococcus lactis that expresses conserved region of M6 protein

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

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