Search Constraints

Start Over
Filtering by: Creator Welter, Stephen C. Remove constraint Creator: Welter, Stephen C. Academic Affiliation Microbiology Remove constraint Academic Affiliation: Microbiology Decade 1980-1989 Remove constraint Decade: 1980-1989

Search Results

  • Physical and functional characterization of soluble protein antigen(s) produced by Renibacterium salmoninarum

    Creator:
    Turaga, Prasad S. D.
    Abstract:
    Renibacterium salmoninarum produces bacterial kidney disease (BKD) in salmonid fish. Soluble antigen(s) (SA) produced by the bacterium was characterized by physicochemical, functional and immunological methods. The molecular weight determination by SDS-PAGE analysis of SA yielded 14 different molecular weight species. Seven of these species were prominent, 57 kd protein being...
    Resource Type:
    Dissertation
    Full Text:
    salrnoninarum Redacted for Privacy Abstract approved: Dr. Stephen L. Kaattari Renibacterium salmoninarum

  • Glucocorticoid regulation of salmonid B lymphocytes

    Creator:
    Tripp, Ralph A.
    Abstract:
    The in vitro effects of cortisol in regulating salmonid B cell functions were investigated. B cells at three distinct stages of differentiation were examined for cortisol sensitivity. B lymphocyte responses were examined 1) during the early stage of the precursor, 2) during the intermediate stage of differentiation associated with clonal...
    Resource Type:
    Dissertation
    Full Text:
    achievement of this degree. My sincere gratitude is extended to my major professor and friend Dr. Stephen L

  • Characterization of a new Lactobacillus species infectious for salmonid fish

    Creator:
    Hiu, Stephen Fooklen
    Abstract:
    A new Lactobacillus species is proposed to include 17 strains of a bacterium from rainbow (Salmo gairdneri) and cutthroat trout (Salmo clarki), and chinook salmon (Oncorhynchus tshawytscha). The bacterium was isolated most frequently from fish stressed by handling or spawn ing. Phenotypically, the strains belong to the family Lactobacillaceae and...
    Resource Type:
    Dissertation
    Full Text:
    for salmonid fish AN ABSTRACT OF THE THESIS OF Stephen Fooklen Hiu for the degree of Doctor of

  • Erythrocytic inclusion body syndrome : a viral disease of salmonid fish

    Creator:
    Piacentini, Stephen Carl
    Abstract:
    Erythrocytic inclusion body syndrome (EIBS), a viral disease of salmon, was investigated. Reliable artificial infections were established in coho salmon (Oncorhynchus kisutch) via intraperitoneal injection of homogenized kidney, spleen, and blood from naturally infected animals. By examining the exposed fish periodically for viral inclusion bodies and hematocrits, the disease progression...
    Resource Type:
    Masters Thesis
    Full Text:
    of salmonid fish AN ABSTRACT OF THE THESIS OF Stephen Carl Piacentini for the degree of Master of

  • Studies to improve lactic acid bacterial starter cultures

    Creator:
    Khosravi, Lewa
    Abstract:
    Three commercial sausage starter cultures were grown in an internal-pH-controlled medium (PHASE 4) and in a soluble phosphate-buffered medium. The cultures were tested by comparing viable counts before and after freezing at -40 C or freeze-drying and subsequent storage for 3 months in the frozen or dried state. Strains varied...
    Resource Type:
    Dissertation
    Full Text:
    . Stephen Kaattari, Prof. Floyd W. Bodyfelt, Dr. Donald E. Mattson , Dr. William C. Denison and Dr

  • Morphologic, molecular and antigenic characteristics of Bacteroides nodosus

    Creator:
    Gradin, Joseph Lloyd
    Resource Type:
    Dissertation
    Full Text:
    also extended to my committee members: Dr. John L. Fryer, Dr. Stephen L. Kaattari, Dr. Donald E

  • Bacteriophages for Leuconostoc oenos : a survey of Oregon wineries

    Creator:
    Eschelbach, Matthew Michael
    Abstract:
    A study of malolactic bacteria of the Leuconostoc genus, especially L. oenos, and their bacteriophages was conducted. A search for the presence of infectious bacteriophages in grapes, musts, and juices employed in malo-lactic fermentation (MLF) was conducted; no evidence, either physical or biological, was found for the existence of these...
    Resource Type:
    Masters Thesis
    Full Text:
    . I extend my thanks to the members of my committee, Dr. Christopher K. Mathews, Dr. Stephen L

  • Monoclonal antibodies to 5'-deoxy-5' methylthioadenosine phosphorylase

    Creator:
    Parker, Ricardo Jerome
    Abstract:
    5'-Deoxy-5'-methylthioadenosine phosphorylase catalyzes the phosphorolytic cleavage of 5'-deoxy-5'-methylthioadenosine to form 5'-deoxy-5'-methylthioribose-1-phosphate and adenine in mammalian cells and plays an important role in methionine and purine salvage. The enzyme is abundant in normal tissues and in cell lines derived from normal cells. However, several malignant tissues and cell lines have been...
    Resource Type:
    Dissertation
    Full Text:
    - ful discussion. I would like to thank my thesis committee members, Drs. Wilbert Gamble, Stephen

  • Purification and characterization of a DNA polymerase gamma from human trophoblast tissue

    Creator:
    Wong, Scott W.
    Abstract:
    DNA polymerase gamma has been purified over 67,500-fold from human trophoblast tissue. Purification was achieved through successive chromatographies on phosphocellulose, DEAE-cellulose, DNA-cellulose, and high pressure gel exclusion through Fractogel TSK HW55. This preparation yielded a specific activity of 81 units/mg of protein using the preferred template-primer, poly (A)-oligo (dT)₁₂₋₁₃. Analysis...
    Resource Type:
    Masters Thesis
    Full Text:
    JoAnn C. Leong 6/ DNA polymerase gamma has been purified over 67,500-fold from human trophoblast

  • Comparison of Flexibacter columnaris strains isolated from fish in North America and other areas of the Pacific Rim

    Creator:
    Song, Yen-ling
    Abstract:
    Twenty-two isolates of Flexibacter columnaris were collected from different species of fish from a wide geographic range. Shieh medium was selected and modified to provide satisfactory growth of F. columnaris strains. Although there were three phenotypic variations in colony morphology among the strains observed, the environmental and biochemical characteristics as...
    Resource Type:
    Dissertation
    Full Text:
    friendship and assistance: Cindy Arakawa, Jack Ganzhorn, Dr. Warren Groberg, Dr. Stephen Hiu, Jerri