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Filtering by: Has journal Journal of Food Protection Remove constraint Has journal: Journal of Food Protection Decade 2010-2019 Remove constraint Decade: 2010-2019 Degree Field Microbiology Remove constraint Degree Field: Microbiology

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  • 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:
    Bacterial contamination of food poses a great risk to human health worldwide. A chromatophore cell-based

  • The Effects of Phytoplankton Prey Species and Nutrient Limitation on Microzooplankton

    Creator:
    McBeain, Kelsey Ann
    Abstract:
    Phytoplankton and microzooplankton comprise the base and the first link of the marine food web, respectively. These microbes are key drivers of marine carbon and nutrient cycles. Phytoplankton convert atmospheric CO₂ into organic carbon, and microzooplankton consume phytoplankton, packaging phytoplankton carbon into particulate forms that have a variety of fates:...
    Resource Type:
    Masters Thesis
    Full Text:
    of the marine food web, respectively. These microbes are key drivers of marine carbon and

  • Role of Plc in the germination of Clostridium perfringens food poisoning isolate SM101

    Creator:
    Bond, Colton B.
    Abstract:
    Clostridium perfringens is the causative agent of gas gangrene and the 3rd most common cause of type A food borne disease in the United States. Critical to the pathogenicity of C. perfringens is the ability of this bacterium to produce highly resistant, metabolically dormant spores that can resume metabolic function...
    Resource Type:
    Masters Thesis
    Full Text:
    in the Germination of Clostridium perfringens Food Poisoning Isolate SM101 Abstract

  • Novel Experimental Designs and Mathematical Models to Study Fecal Indicator Bacteria Persistence in Surface Water

    Creator:
    Brooks, Lauren
    Abstract:
    High counts of fecal indicators, used to signal the potential presence of pathogens associated with untreated waste, result in the classification of water bodies throughout the United States as impaired. Nonpoint sources of unknown origin that contribute to fecal contamination make management of impaired waters challenging, as they are difficult...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Lauren Brooks

  • Photosynthetic Energy Allocation Strategies of Thalassiosira pseudonana During Light Limited Growth

    Creator:
    Fisher, Nerissa L.
    Abstract:
    Photosynthetic energy allocation strategies were investigated in the marine diatom, Thalassiosira pseudonana, grown under a wide range of light limitation. Steady-state, continuous cultures were established at three light-limited growth rates. Simultaneous measurements of photosynthetic activity were made that targeted different points in photosynthetic energy flow from gross to net photosynthesis....
    Resource Type:
    Masters Thesis
    Full Text:
    , especially during a time of climate change. Phytoplankton are the base of the aquatic food web and their

  • Bacterial Predation in Host Microbiomes

    Creator:
    Welsh, Rory M.
    Abstract:
    In host-associated microbiomes, the mechanisms that regulate community composition or the principles that govern dynamics remain far from clear. However, understanding how the structure of microbial communities shift as the system moves away from a healthy state is critical to assessing disease progression and to formulate any potential mitigation strategy....
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Rory M. Welsh for the degree of Doctor of Philosophy in

  • Factors affecting the Ceratomyxa shasta infectious cycle and transmission between polychaete and salmonid hosts

    Creator:
    Bjork, Sarah J.
    Abstract:
    Ceratomyxa shasta is a myxozoan parasite that infects salmonid fishes causing the disease ceratomyxosis that is characterized by severe hemorrhage and necrosis of the intestine and death of the fish host. Ceratomyxa shasta is endemic to the Pacific Northwestern United States and Canada, where epizootics are reported for both wild...
    Resource Type:
    Dissertation
    Full Text:
    strategy in fish as a means of protection against pathogens. Increased bactericidal activities were

  • 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
    Full Text:
    synthesize EPS, are exploited in the food industry, especially in production of fermented products

  • 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:
    not only the potential for contamination and bioaccumulation of mercury species in food sources but

  • Development of mucosal vaccines for avian influenza A virus composed of recombinant Lactococcus lactis and Streptococcus gordonii

    Creator:
    Reese, Kaleb A.
    Abstract:
    Novel mucosal vaccines (LL-M2e, LL-HAe, SG-HAe) were constructed from live, non-pathogenic Lactococcus lactis or Streptococcus gordonii that express conserved regions of HA or M2 antigens from avian influenza virus (AIV) A. All three vaccines evoked antigen-specific serum immunoglobulin G (IgG) responses in vaccinated chickens. The addition of the adjuvant cholera...
    Resource Type:
    Masters Thesis
    Full Text:
    -specific serum IgG and protection against lethal challenge……………………….. 57 Development of