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Investigating Vibrio parahaemolyticus interactions with the Pacific oyster, Crassostrea gigas

Creator:: Aagesen, Alisha M.
Abstract:: Vibrio parahaemolyticus is a Gram-negative, halophilic, human pathogenic bacterium ubiquitous in the marine environment. Like many Vibrio species, V. parahaemolyticus commonly associates with shellfish, particularly oysters. Ingestion of a raw or under cooked oysters contaminated with V. parahaemolyticus can cause gastroenteritis, which is typically self-limiting and rarely causes death. Globally,...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________ Claudia C. Häse Vibrio parahaemolyticus is a Gram-negative, halophilic, human

Molecular and genetic assessment of selected antiporters and methyl-accepting chemotaxis proteins in Vibrio cholerae

Creator:: Quinn, Matthew J.
Abstract:: The pathogen Vibrio cholerae uses cations as a primary currency of virulence and environmental persistence, using gradients of those cations to move, acquire nutrients, and control virulence gene expression. An understanding of the overlapping roles of bioenergetics and chemotaxis in the virulence and environmental survival of V. cholerae issues from...
Resource Type:: Dissertation
Full Text:: C. Häse The pathogen Vibrio cholerae uses cations as a primary currency of virulence and

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:: : Claudia Häse The ability to move towards favorable environmental conditions, called chemotaxis

Macrophage infection with wild-type Mycobacterium avium or isogenic attenuated PPE mutant revealed differences in gene expression and mycobacterial vacuole proteins

Creator:: Jha, Samradhni
Abstract:: Mycobacterium avium is a ubiquitous environmental organism found in water and soil. It can cause disease in patients with pre-existing pulmonary conditions, immunocompromised patients with the most prevalent being AIDS patients, as well as apparently healthy people. Studies have indicated that, upon macrophage uptake, Al. avium prevents phagosome-lysosome fusion, thus...
Resource Type:: Masters Thesis
Full Text:: thankful to my thesis committee, Dr. Manoj Pastey and Dr. Claudia Hase, for their help and support. I am

The Inhibitory Activity of Essential Oil Constituents Against Clostridium perfringens Type A Isolates

Creator:: Alanazi, Saud
Abstract:: C. perfringens type A isolates are the causative agents of C. perfringens type A food poisoning (FP) and non-food-borne (NFB) human gastrointestinal diseases. In this study, we evaluated the antimicrobial effect of essential oil constituents (cinnamaldehyde, eugenol, allyl isothiocyanate (AITC), and carvacrol) against C. perfringens FP and NFB isolates grown...
Resource Type:: Masters Thesis
Full Text:: difficulties in my research. I also want to thank Dr. Daniel Rockey, Dr. Claudia Hase and Dr. Joy Waite-Cusic

Inactivation Strategy for Clostridium perfringens Spores Adhered onto Stainless Steel Surfaces

Creator:: Alzubeidi, Yasmeen S.
Abstract:: Clostridium perfringens is a spore-forming pathogenic bacterium that causes a variety of diseases in human and animals. C. perfringens type A isolates produce enterotoxin (CPE) causing food poisoning (FP) and non-food-borne (NFB) gastrointestinal (GI) diseases including antibiotic-associated diarrhea and sporadic diarrhea. C. perfringens type A food poisoning currently ranks as...
Resource Type:: Masters Thesis
Full Text:: variety of diseases in human and animals. C. perfringens type A isolates produce enterotoxin (CPE

Characterization of pathogenic and non-pathogenic Vibrio parahaemolyticus strains and the antimicrobial activity of fruit juice and fruit extracts against seafood pathogens

Creator:: Du, Jingyi
Abstract:: Vibrio parahaemolyticus is frequently isolated or detected from raw seafoods, especially shellfish. Also, Listeria monocytogenes, Salmonella spp. are pathogens that are frequently found in ready-to-eat (RTE) seafood, such as smoked fish and shellfish, seafood salad, cooked shrimp and crabmeat, and seafood consumed raw. Two studies to improve safety in RTE...
Resource Type:: Masters Thesis
Full Text:: Park and Dr. Claudia Häse for their advice and participation in my M.S. program. Thanks to people

Retention of protein repulsive character and antimicrobial activity of PEO brush layers following nisin entrapment

Creator:: Auxier, Julie A.
Abstract:: Nisin, an amphiphilic, antimicrobial peptide, has been shown to integrate into the hydrophobic inner region of poly(ethylene oxide) (PEO) brush layers; however, the presence of integrated nisin may compromise the protein repulsive character of the PEO layer. In particular, the introduction of fibrinogen to nisin-loaded brush layers has been observed...
Resource Type:: Masters Thesis
Full Text:: activity against P. pentosaceus and S. epidermidis ............ 58 Appendix C Nisin adsorption to

Hydrolytic methods for the quantification of fructose-equivalents in herbaceous biomass

Creator:: Nguyen, Stefanie K.
Abstract:: A low, but significant, fraction of the carbohydrate portion of herbaceous biomass may be composed of fructose/fructosyl-containing components (“fructose equivalents”); such carbohydrates include sucrose, fructo-oligosaccharides, and fructans. Standard methods used for the quantification of structural-carbohydrate-derived neutral monosaccharide-equivalents in biomass are not particularly well suited for the quantification of fructose equivalents...
Resource Type:: Masters Thesis
Full Text:: Sophonputtanaphoca. assisted with data collection for the 50°C sample conditions and in the interpretation of the

Identification of novel immune molecular pathways and response markers to OmniGen-AF® supplementation in a rat model

Creator:: Branson, Jennifer A.
Abstract:: OmniGen-AF® (OG; Prince Agri Products, Inc., Quincy, IL) is a feed additive containing brewers dehydrated yeast and B-vitamins that supports immune function in ruminant livestock. Targeted profiling of immune-associated genes in whole blood is an effective platform for identification of a) novel molecular pathways and b) immune response markers to...
Resource Type:: Masters Thesis
Full Text:: . ............................................................21 Figure 2. Summary of C-type Lectin-like Receptors, Rig-I-like Receptors, and Cytosolic dsDNA

ScholarsArchive@OSU

Investigating Vibrio parahaemolyticus interactions with the Pacific oyster, Crassostrea gigas

Molecular and genetic assessment of selected antiporters and methyl-accepting chemotaxis proteins in Vibrio cholerae

Identification of an aerotaxis transducer in Vibrio cholerae

Macrophage infection with wild-type Mycobacterium avium or isogenic attenuated PPE mutant revealed differences in gene expression and mycobacterial vacuole proteins

The Inhibitory Activity of Essential Oil Constituents Against Clostridium perfringens Type A Isolates

Inactivation Strategy for Clostridium perfringens Spores Adhered onto Stainless Steel Surfaces

Characterization of pathogenic and non-pathogenic Vibrio parahaemolyticus strains and the antimicrobial activity of fruit juice and fruit extracts against seafood pathogens

Retention of protein repulsive character and antimicrobial activity of PEO brush layers following nisin entrapment

Hydrolytic methods for the quantification of fructose-equivalents in herbaceous biomass

Identification of novel immune molecular pathways and response markers to OmniGen-AF® supplementation in a rat model

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