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Filtering by: Has journal Journal of Nuclear Materials Remove constraint Has journal: Journal of Nuclear Materials Academic Affiliation Microbiology Remove constraint Academic Affiliation: Microbiology Degree Field Microbiology Remove constraint Degree Field: Microbiology

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  • Isolation and characteristics of the DNA from nuclear polyhedrosis virus

    Creator:
    Carnegie, John William
    Abstract:
    The genome of the nuclear polyhedrosis virus which infects the larvae of the tussock moth, the lepidopteran, Hemerocampa pseudotsugata, was isolated, identified as deoxyribonucleic acid, and characterized in terms of its physical and biological properties. An isolation procedure for the viral DNA was established which consisted of the following steps:...
    Resource Type:
    Dissertation
    Full Text:
    , ethylenediaminetetraacetic acid, sodium chloride 3 to be the genetic material of different polyhedrosis viruses. Nuclear

  • Materials associated with the DNA fraction of Bacillus subtilis W168

    Creator:
    Laudermilk, Patricia Joan
    Abstract:
    The purpose of this research was to determine if a basic protein was associated with the DNA of Bacillus subtilis W168, and to determine if there was a difference in the amount and type of protein associated with the DNA at different times during the growth cycle of the organism....
    Resource Type:
    Masters Thesis
    Full Text:
    absorption spectra of these DNA complexes showed that, except for the five hour culture, some material was

  • Host cell nuclear involvement in vaccinia virus replication

    Creator:
    Villarreal, Elcira C.
    Abstract:
    It was previously shown that vaccinia virus is unable to complete its replicative cycle in cells that have been subjected to cytochalasin-B mediated enucleation prior to infection. Likewise, in the presence of the drug α-amanitin, a potent inhibitor of host RNA polymerase II but not of viral transcription, the replication...
    Resource Type:
    Dissertation
    Full Text:
    REPLICATING INDEPENDENTLY OF THE HOST CELL NUCLEUS 8 Summary 9 Introduction 10 Methods and Materials 13

  • The association of DNA with other cellular materials in Escherichia coli lysates

    Creator:
    Porter, Bruce Wallace
    Abstract:
    The association of other materials with DNA has been studied extensively in higher organisms and more recently in bacteria. However, investigation of these complexes in bacteria have for the most part been restricted to the study of a specific function this association may serve, or a specific kind of association....
    Resource Type:
    Dissertation
    Full Text:
    role in the function and metabolism of the genetic material. The first materials found associated

  • Significance of pigments in radiation resistance of Micrococcus radiodurans

    Creator:
    Krabbenhoft, Kenneth Louis
    Abstract:
    An ecological study of a microorganism similar to that isolated in 1956 and designated as Micrococcus radiodurans indicated that the organism could be isolated from several different environments. By taking advantage of its radio-resistivity, high levels of gamma radiation were used in the isolation procedures to inactivate most of the...
    Resource Type:
    Dissertation
    Full Text:
    material. All of the environments tested were in the vicinity of the Nebergall Packing Plant, Albany

  • 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:
    summary, the nuclear genome contained 34 million base pairs composed of 24 diploid chromosomes, the

  • 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:
    decay, studies using ruminant sources of fecal material are underrepresented in the available data

  • Characterization of the Oregon sockeye salmon virus

    Creator:
    Wingfield, William Harry
    Abstract:
    Characterization of a virus requires that its physical, biochemical and biological properties be determined. In this study the Oregon sockeye salmon virus was characterized. It was isolated in the fall of 1958 from juvenile sockeye salmon, Oncorhynchus nerka, being reared at the Oregon Fish Commission's Willamette River Hatchery. When inoculated...
    Resource Type:
    Dissertation
    Full Text:
    . First there was a thickening of the nuclear membrane accompanied by alteration of the nucleoli. This

  • A comparison of radiation induced lipid changes in Micrococcus radiodurans, Sarcina lutea, and Pseudomonas aeruginosa

    Creator:
    Ley, Ronald Douglas
    Abstract:
    Quantity variations in pigments and lipid classes were determined following γ-irradiation of Micrococcus radiodurans, Sarcina lutea, and Pseudomonas aeruginosa. Pigmentation was determined by extraction with organic solvents and measured as optical density at 475 mμ for M. radiodurans and S. lutea, and 410 mμ for Ps. E aetuginosa. Pigments of...
    Resource Type:
    Masters Thesis
    Full Text:
    . One reaction induced by the irradiation of lipid material is thought to be similar to the

  • Growth and development of tetracycline resistant Chlamydia suis

    Creator:
    Lenart, Jennifer
    Abstract:
    Tetracycline is a front line antibiotic for the treatment of chlamydial infections in both humans and animals, and the emergence of tetracycline resistant (tet[superscript R]) Chlamydia is of significant clinical importance. Recently, several tet[superscript R] chlamydial strains have been isolated from swine (Sus scrofa) raised in production facilities in Nebraska....
    Resource Type:
    Masters Thesis
    Full Text:
    Livestock 25 III. MATERIALS AND METHODS 29 Cell Culture 29 Chlamydial Infections 29 Production of