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  • Characterization of the genomic islands from tetracycline-resistant Chlamydia suis

    Creator:
    Dugan, Jae
    Abstract:
    Tetracycline (Tet)-resistant strains of Chlamydia suis were isolated from swine farms in the Midwest. The isolation of the resistant strains was significant because Tet is an antibiotic used to treat infections by veterinarians and doctors. One of the tetracycline (Tet)-resistant strains, R19, was able to survive in Tet up to...
    Resource Type:
    Dissertation
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    , Mahfuz Sarker, Mark Zabriskie, Doug Barofsky, and Claudia Hase. Not only has Dennis Hruby and Mark

  • 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
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    : Gitali Indra, Malcolm Lowry, Walt Ream, and Mahfuz Sarker. Pavel Dibrov has patiently, but

  • Cooperation and conflict in Pseudomonas aeruginosa quorum sensing

    Creator:
    Wilder, Cara N.
    Abstract:
    Pseudomonas aeruginosa is an environmental bacterium as well as an opportunistic pathogen that primarily infects immunocompromised individuals, including those suffering from cystic fibrosis. The density-dependent regulation of gene expression via cell-to-cell communication, also termed quorum sensing (QS), is an important virulence determinant in this organism. Generally, P. aeruginosa uses three...
    Resource Type:
    Dissertation
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    . Walt Ream, Jeff Chang, Susan Tornquist, and Mahfuz Sarker, who have generously given their time and

  • Immunological and physiochemical characterization of fish myosins

    Creator:
    Reed, Zachary H.
    Abstract:
    Increased sales of surimi seafood, with the majority as crabstick in the United States indicates that surimi based products are becoming more popular. With growing popularity, there is increased competition for market share. Under these circumstances, some companies may be willing to sacrifice product quality in order to facilitate manufacture...
    Resource Type:
    Dissertation
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    . Michael H. Penner, Dr. Mahfuz Sarker, Dr. Russell E. Ingham) for their advice and time in helping me to

  • 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
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    thank my committee members Dr. Luiz Bermudez, Dr. Mahfuz Sarker, Dr. Martin Schuster, and Dr. Phil

  • Characterization of myosin, myoglobin, and phospholipids isolated from Pacific sardine (Sadinops sagax)

    Creator:
    Park, Joo Dong
    Abstract:
    Myoglobin (Mb) was extracted from Pacific sardine and added to Pacific whiting surimi to measure its effects on protein gelation. The purity of Mb extract was determined by SDS-PAGE. Mb extracted using ethanol showed higher purity than Mb extract using ammonium sulfate. The addition of 0.2% Mb significantly reduced breaking...
    Resource Type:
    Dissertation
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    committee (Dr. Michael T. Morrissey, Dr. Yanyun Zhao, Dr. Andrew S. Ross, and Dr. Mahfuz Sarker) for their

  • Functional analysis of the biosynthetic gene cluster of the antitumor agent cetoniacytone A

    Creator:
    Wu, Xiumei
    Abstract:
    A gene cluster responsible for the biosynthesis of the antitumor agent cetoniacytone A was identified in Actinomyces sp. strain Lu 9419, an endosymbiotic bacteria isolated from the intestines of the rose chafer beetle. The nucleotide sequence analysis of the 26 Kb DNA region revealed the presence of 17 complete ORFs,...
    Resource Type:
    Dissertation
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    system. I am indebted to my committee members, Dr. Mark Zabriskie, Dr. Mahfuz Sarker, Dr. Xihou

  • Analysis of chlamydial and host proteins associated with infection

    Creator:
    Chu, Hencelyn
    Abstract:
    Chlamydiae are obligate intracellular bacteria that infect a variety of eukaryotic hosts and affect normal host processes. Within host cells, their developmental cycle takes place inside non-acidified vacuoles termed inclusions. An inclusion membrane composed primarily of secreted chlamydial synthesized proteins called Incs encloses the inclusion. At this location, Incs have...
    Resource Type:
    Dissertation
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    , Dr. Luiz Bermudez, Dr. Mahfuz Sarker, Dr. Karen Guillemin, and Dr. Barbara Taylor who all have an

  • Characterization of Vibrio parahaemolyticus isolated from Oregon and Washington coastal water and development of improved methods for Vibrio parahaemolyticus detection

    Creator:
    Duan, Jingyun
    Abstract:
    Distribution of Vibrio parahaemolyticus in Oregon and Washington oystergrowing areas was studied between November 2002 and October 2003. V. parahaemolyticus was detected in 14.3% of oyster, 23.0% of seawater, and 44.4% of sediment samples with very low levels (≤7.4 MPN/g) of pathogenic strains being detected in oysters. Occurrence of V....
    Resource Type:
    Dissertation
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    efficiently. I would also thank my minor professor, Dr. Mahfuz R. Sarker, and my committee members, Dr