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Filtering by: Creator Hase, Claudia C. Remove constraint Creator: Hase, Claudia C. Committee Member Hase, Claudia Remove constraint Committee Member: Hase, Claudia Degree Level Doctoral Remove constraint Degree Level: Doctoral

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  • Clostridium perfringens sporulation and gliding motility

    Creator:
    Huang, I-Hsiu
    Abstract:
    Clostridium perfringens type A isolates, an anaerobic enterotoxigenic spore forming bacterium, are the third leading cause of food-borne disease in the United States. Factors that contribute to the virulence of C. perfringens include the ability of the bacterium to form heat resistant spores and to produce an enterotoxin (CPE). Although...
    Resource Type:
    Dissertation
    Full Text:
    . Also many thanks to my committee members, Dr. Luiz Bermudez, Dr. Claudia Hase, Dr. Emily Ho, Dr. Dan

  • Characterization of Sporulation and Germination Genes in Clostridium perfringens

    Creator:
    Talukdar, Prabhat Kumar
    Abstract:
    Clostridium perfringens is a Gram-positive, anaerobic, spore-forming bacterium that can produce as many as 17 different toxins and are responsible to cause a wide array of gastrointestinal (GI) and histotoxic diseases in humans and animals. As individual strains produce a subset of these toxins, C. perfringens strains can be classified...
    Resource Type:
    Dissertation
    Full Text:
    . Daniel Rockey, Dr. Claudia Hase and Dr. Kathy O’Reilly for serving as my committee members. I am

  • New Insights into the Molecular Mechanism of Clostridium perfringens Spore Germination

    Creator:
    Banawas, Saeed S.
    Abstract:
    C. perfringens is a spore-forming, gram-positive, anaerobic pathogenic bacterium capable of causing a wide variety of diseases in both humans and animals. However, the two most common illnesses in humans are C. perfringens type A food poisoning (FP) and non-food-borne (NFB) gastrointestinal (GI) illnesses. Interestingly, these two major diseases are...
    Resource Type:
    Dissertation
    Full Text:
    , Dr. Claudia Häse and Dr. Jean Hall, who offered guidance and support. I would like to thank all

  • Aqueous complexation of citric acid and DTPA with selected trivalent and tetravalent f-elements

    Creator:
    Brown, M. Alex
    Abstract:
    Carboxylic acids have played an important role in the field of actinide (An) and lanthanide (Ln) separations and the reprocessing of irradiated nuclear fuel. Recent bench-scale experiments have demonstrated that 3-carboxy-3-hydroxypentanedioic acid (citric acid) is a promising aqueous complexant that can effectively aid in the separation of transition metals from...
    Resource Type:
    Dissertation
    Full Text:
    constants with Nd 3+ are logβ = 2.7, 7.9, and 21.6, respectively (I = 0.1M, 25°C). 13 The increase in

  • Quorum sensing gene regulation in Pseudomonas aeruginosa

    Creator:
    Gupta, Rashmi
    Abstract:
    Pseudomonas aeruginosa is an opportunistic human pathogen that infects immunocompromised individuals such as those suffering from burns or the genetic disorder cystic fibrosis. This organism utilizes a cell-cell communication mechanism known as quorum sensing (QS) to coordinate virulence gene expression and biofilm formation. It has three interconnected QS systems, namely...
    Resource Type:
    Dissertation
    Full Text:
    . Claudia Häse, and Dr. Taifo Mahmud for their commitment and interest in my work and for useful

  • Ecology and Environmental Controls of Two Keystone Groups of Oceanic Microorganisms : Diazotrophs and Pathogenic Vibrio

    Creator:
    Gradoville, Mary Rose
    Abstract:
    Marine bacteria play vital roles in every niche of the ocean, from small-scale symbioses to large-scale productivity and the regulation of Earth’s climate. Recent advances in molecular tools now allow us to probe the genetic potential of entire microbial communities. The next step is linking these diverse communities to the...
    Resource Type:
    Dissertation