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Pathogenic Microbiology Commons

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Articles 1 - 6 of 6

Full-Text Articles in Pathogenic Microbiology

Recovery Of Rna Polymerase Ii Synthesis Following Dna Damage In Mutants Of Saccharomyces Cerevisiae Defective In Nucleotide Excision Repair, Michael S. Reagan, Errol C. Friedberg Nov 1997

Recovery Of Rna Polymerase Ii Synthesis Following Dna Damage In Mutants Of Saccharomyces Cerevisiae Defective In Nucleotide Excision Repair, Michael S. Reagan, Errol C. Friedberg

Biology Faculty Publications

We have measured the kinetics of the recovery of mRNA synthesis in the inducible GAL10 and RNR3 genes after exposure of yeast cells to ultraviolet (UV) radiation. Such recovery is abolished in mutant strains defective in nucleotide excision repair (NER) of DNA, including a rad23 mutant. Mutants defective in the RAD7 or RAD16 genes, which are required for the repair of the non-transcribed strand but not the transcribed strand of transcriptionally active genes, show slightly faster recovery of RNA synthesis than wild-type strains. A strain deleted of the RAD26 gene, which is known to be required for strand-specific NER in ...


Increase In Fluorescence Intensity Of 16s Rrna In Situ Hybridization In Natural Samples Treated With Chloramphenicol, Cleber C. Ouverney, Jed A. Fuhrman Jul 1997

Increase In Fluorescence Intensity Of 16s Rrna In Situ Hybridization In Natural Samples Treated With Chloramphenicol, Cleber C. Ouverney, Jed A. Fuhrman

Faculty Publications

Despite the numerous advantages of fluorescent in situ hybridization for the identification of single prokaryotic cells with 16S rRNA probes, use of the technique with natural samples, especially those from the marine environment, is still problematic. The low percentage of fluorescently labeled cells constitutes the primary problem for in situ hybridization of natural samples, probably due to low cellular rRNA content. This study represents an attempt to improve detection of marine prokaryotes by increasing cellular rRNA content without changing the species composition. Cells from three California coastal sites were treated with chloramphenicol, an inhibitor of protein synthesis and rRNA degradation ...


Improving Food Safety In Meat And Poultry: Will New Regulations Benefit Consumers?, Laurian J. Unnevehr, Tanya Roberts, Helen H. Jensen Jan 1997

Improving Food Safety In Meat And Poultry: Will New Regulations Benefit Consumers?, Laurian J. Unnevehr, Tanya Roberts, Helen H. Jensen

Economics Publications

The Centers for Disease Control and Prevention (CDC) state that "food­ borne disease remams one of the most common and important cases of illness and deaths" (Harman, et al., 1991). According to researchers at CDC and the U.S. Food and Drug Administration (FDA), 6.5 million to 33 million illnesses and up to 9,000 deaths may occur each year from foodborne pathogens (namely, bactena, parasites, virus­ es, and fungi). For just the few foodborne bacterial and parasitic diseases for which there are cost estimates, medical costs, and lost productivity cost society $6.5 to $35 bil­ lion annually ...


Sensitivity And Survival Of Escherichia Coli O157:H7 Isolates After X-Ray And Electron Beam Irradiation In Raw Ground Meat, Adelle Denise Chan Jan 1997

Sensitivity And Survival Of Escherichia Coli O157:H7 Isolates After X-Ray And Electron Beam Irradiation In Raw Ground Meat, Adelle Denise Chan

Retrospective Theses and Dissertations

No abstract provided.


[Beta]-Hemolysin And The Pathogenesis Of Serpulina Hyodysenteriae Infection, David Leonard Hutto Jan 1997

[Beta]-Hemolysin And The Pathogenesis Of Serpulina Hyodysenteriae Infection, David Leonard Hutto

Retrospective Theses and Dissertations

A murine model of Serpulina hyodysenteriae infection was utilized to explore the pathogenesis of lesion formation induced by that organism. Detailed characterization of gross and microscopic lesions in that model demonstrated that mice fed Teklad diet 85420 experienced the onset of severe gross and histologic lesions much sooner (within 24 hours) following infection with S. hyodysenteriae than did mice fed conventional rodent chow. However, gross and microscopic features of the induced lesions were no different in mice fed either diet.;The model was then used to document the progression of morphologic changes that occur in the cecal mucosa of mice ...


Involvement Of The Ras-Like Gtpase Rab3d In Rbl-2h3 Mast Cell Exocytosis Following Stimulation Via High Affinity Ige Receptors (Fcεri), Michele Roa, Fabienne Paumet, Joelle Le Mao, Bernard David, Ulrich Blank Dec 1996

Involvement Of The Ras-Like Gtpase Rab3d In Rbl-2h3 Mast Cell Exocytosis Following Stimulation Via High Affinity Ige Receptors (Fcεri), Michele Roa, Fabienne Paumet, Joelle Le Mao, Bernard David, Ulrich Blank

Fabienne Paumet

No abstract provided.