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Filtering by: Creator Stephenson, Jerry D. Remove constraint Creator: Stephenson, Jerry D. Academic Affiliation Microbiology Remove constraint Academic Affiliation: Microbiology

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  • Photooxidative degradation of annual rye-grass straw to substrates enhancing rhodotorula mucilaginosa growth

    Creator:
    Park, Jerry Eugene
    Abstract:
    Annual ryegrass (Lolium multiflorum) is a major seed crop in the Willamette Valley of Oregon. Persistent crop diseases have necessitated annual field burning to protect future crops. This practice, while very effective for disease eradication, produces large quantities of air polluting smoke in the valley and a general wastage of...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF JERRY EUGENE PARK for the (Name

  • Soil and rumen microbial responses to photooxidized grass straw

    Creator:
    Park, Jerry Eugene
    Abstract:
    Straw has many uses, as feed, roughage, animal bedding, but these requirements are not sufficient to utilize the available production. In areas where grasskseed is produced, post-harvest straw is burned in the field to help prevent crop disease the following year. This treatment is very wasteful in terms of straw...
    Resource Type:
    Masters Thesis
    Full Text:
    Typed by Opal Grossnicklaus for Jerry Eugene Park ACKNOWLEDGMENT The author wishes to thank Dr. D. A

  • Structural and functional analysis of the 57 kDa protein produced by the fish pathogen, Renibacterium salmoninarum

    Creator:
    Wiens, Gregory D.
    Abstract:
    Little is known about the virulence factors of Renibacterium salmoninarum, the causative agent of salmonid bacterial kidney disease. The predominant protein produced by R. salmoninarum in broth culture or during infection is a 57/58 kDa protein (p57) which is associated with strain virulence. In this study monoclonal antibodies (MAbs) to...
    Resource Type:
    Dissertation
    Full Text:
    produced by the fish pathogen, Renibacterium salmoninarum AN ABSTRACT OF THE THESIS OF Gregory D. Wiens

  • Development of enteric protected vaccines for aquaculture

    Creator:
    Piganelli, Jon D.
    Abstract:
    At present all vaccines for fish are primarily delivered either by injection or immersion which introduces added stress and labor. A more attractive method of vaccine delivery is oral administration using an enteric protection system, Enteric Coated Antigen Microspheres (ECAMs), which can be utilized for a variety of antigenic forms....
    Resource Type:
    Dissertation

  • Genetic variation of chlamydial Inc proteins

    Creator:
    Viratyosin, Wasna
    Abstract:
    Genomic analysis is a new approach for the characterization and investigation of novel genes, gene clusters, the function of uncharacterized proteins, and genetic diversity in microorganisms. These approaches are important for the study of chlamydiae, a system in which several genomes have been sequenced but in which techniques for genetic...
    Resource Type:
    Dissertation
    Full Text:
    Chlamydial Inc Proteins Abstract approved: Daniel D. Genomic analysis is a new approach for the

  • 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
    Full Text:
    Geller, Dr. Martin Schuster and Dr. Jerry Heidel. It was an honor to work with Dr. Karen P. Dierksen

  • A comparative study of fish coloration and toxicant responses in a chromatophore cell-based biosensor

    Creator:
    Roach, Holly B.
    Abstract:
    Detection of both biological and chemical environmental toxicants is essential in the assessment of risk to human health. Cell-based biosensors are capable of activity- based detection of toxicity. Chromatophore cells, responsible for the pigmentation of poikilothermic animal, have shown immense potential as cell-based biosensors in the detection of a broad...
    Resource Type:
    Masters Thesis
    Full Text:
    . Tony Amandi, and Dr. Jerry Heidel for their advice and interest in my success. I especially want

  • The conserved biology of herpesvirus latency : a study in cyprinid herpesvirus 3

    Creator:
    Reed, Aimee N.
    Abstract:
    Cyprinid herpesvirus 3 (CyHV-3), commonly known as koi herpesvirus (KHV), is a member of the Alloherpesviridae and is a deadly pathogen for koi and common carp, Cyprinus carpio. It causes severe gill necrosis and nephritis, dermal ulceration and hemorrhage, and mass mortality of up to 100% of affected fish. Fish...
    Resource Type:
    Dissertation
    Full Text:
    dedication to my success: Dr. Andrew Buermeyer, Dr. Michael Kent, Dr. Malcolm Lowry, and Dr. Jerry Heidel

  • Impacts of multispecies parasitism on coho salmon (Oncorhynchus kisutch) in Oregon

    Creator:
    Ferguson, Jayde A.
    Abstract:
    Diseases caused by parasites are recognized as significant sources of mortality in wild fish populations. I assessed the impacts of multispecies parasitism on a threatened stock of juvenile coho salmon (Oncorhynchus kisutch). A crucial prerequisite to this research was proper identification of parasites, which can be difficult for species lacking...
    Resource Type:
    Dissertation
    Full Text:
    like to thank my graduate committee: Michael Kent, Carl Schreck, Kym Jacobson, and Jerry Heidel

  • Detection and transmission of Mycobacterium marinum and Mycobacterium chelonae in zebrafish (Danio rerio)

    Creator:
    Peterson, Tracy Shawn
    Abstract:
    Mycobacteriosis is a common disease of laboratory zebrafish (Danio rerio). Different infection patterns occur in zebrafish depending on mycobacterial species. Mycobacterium marinum and M. haemophilum produce virulent infections associated with high mortality, whereas M. chelonae is more wide spread and not associated with high mortality. Identification of mycobacterial infections to...
    Resource Type:
    Dissertation
    Full Text:
    my committee for their service and contributions to my work: Jerry Heidel, Christiane Löhr, Bruce