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Filtering by: Committee Member Rivin, Carol Remove constraint Committee Member: Rivin, Carol Degree Level Doctoral Remove constraint Degree Level: Doctoral

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  • Molecular characterization of specificity and activity of the transposable element IS801

    Creator:
    Richter, Grace Yukiko
    Abstract:
    1S801 is a transposable element isolated from Pseudomonas syringae pathovar (pv.) phaseolicola, the causal agent of halo blight of bean. Fragments of the element are present in multiple copies on an indigenous plasmid, pMMC7105, of strain LR781, and have been implicated as sites of homologous recombination leading to imprecise excision...
    Resource Type:
    Dissertation
    Full Text:
    . Carol Rivin, Walt Ream, and Lyle Brown for serving on my committee and critically evaluating this

  • Silencing the Agrobacterium tumefaciens oncogenes

    Creator:
    Pitrak, Jennifer
    Abstract:
    Crown gall disease is an agricultural problem caused by the soil-borne bacterium, Agrobacterium tumefaciens. A. tumefaciens oncogenes cause transformed plant cells to overproduce the hormones, auxin and cytokinin. High hormone levels cause unorganized plant cell growth resulting in a gall. Control of crown gall disease is difficult because after plant...
    Resource Type:
    Dissertation
    Full Text:
    , Dr. Lyle Brown, and Dr. Carol Rivin, for their guidance and support and advice. I am also especially

  • Molecular genetic characterization of a pathogenicity-attenuated mutant of Pseudomonas syringae pathovar syringae

    Creator:
    Zhao, Yuqi
    Abstract:
    A pathogenicity locus of Pseudomonas syringae pv. syringae identified by Tn5 mutagenesis was investigated. The mutant strain PS9024 is attenuated for disease expression in its host, Phaseolus vulgaris, but produces the hypersensitive reaction (HR) in the nonhost, tobacco (Nicotina tabacum). A cosmid clone carrying 16 kilobases (kb) of contiguous genomic...
    Resource Type:
    Dissertation
    Full Text:
    encouragement during the course of the research. Thanks go to Drs. George Pearson, Joyce Loper, Carol Rivin

  • Proteolytic maturation of vaccinia virus structural proteins

    Creator:
    VanSlyke, Judy K.
    Abstract:
    Vaccinia virus (VV) is a large DNA virus belonging to the Orthopoxvirus family. The viral replicative life cycle takes place solely within the cytoplasm of a mammalian host cell. The VV genome contains 196 open reading frames which are expressed in a highly regulated and temporal fashion in order to...
    Resource Type:
    Dissertation
    Full Text:
    Mathews, William Dougherty, Peter Bottom ley, and Carol Rivin for their scientific guidance and

  • Genetic and physiological analysis of a light-regulated gravitropic mutant of tomato

    Creator:
    Gaiser, J. Christopher
    Resource Type:
    Dissertation
    Full Text:
    environment which Tern fosters. I thank my committee members: David Ray le, Carol Rivin, Christopher Mathews

  • Auxin and cytokinin interaction in tomato (Lycopersicon esculentum Mill.)

    Creator:
    Coenen, Catharina
    Abstract:
    The phytohormones auxin and cytokinin control plant development through a complex network of interactions which include synergistic, additive, and opposite effects whose mechanisms are unknown. The auxin-insensitive diageotropica (dgt) mutant provided a tool to dissect the relationship between auxin- and cytokinin-induced responses in tomato. Morphological, physiological, and molecular data support...
    Resource Type:
    Dissertation
    Full Text:
    abilities. I thank the members of my committee, Carol Rivin, Don Armstrong, Machteld Mok, Paul Farber, and

  • Characterization of the LeIAA family of auxin-regulated genes in tomato (Lycopericon esculentum, Mill.)

    Creator:
    Nebenfuhr, Andreas
    Abstract:
    The plant hormone auxin regulates many aspects of plant growth and development. At the cellular level, auxin can stimulate cell division, cell elongation, and cell differentiation. Little is known about the molecular mechanisms that mediate auxin action at this level, although changes in gene expression have been implicated in each...
    Resource Type:
    Dissertation
    Full Text:
    of support. Thanks also to the members of my committee, Florian Cerklewski, Steve Knapp, Carol

  • Interactions of auxin with ethylene and gravity in regulating growth and development in tomato (Lycopersicon esculentum, Mill.)

    Creator:
    Madlung, Andreas
    Abstract:
    Plant growth, development, and environmental responsiveness are dependent on hormone-induced gene expression. This dissertation reports multiple interactions between the plant hormones auxin and ethylene and investigates their contribution to the gravitropic response, elongation growth, adventitious root formation, callus and tracheary element initiation and growth, and flower development. Four mutants of...
    Resource Type:
    Dissertation
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    would best serve my interests. I would also like to thank my graduate committee members, Carol Rivin

  • Reversion reporters in Arabidopsis thaliana to detect all six base substitution pathways

    Creator:
    Bollmann, Stephanie R.
    Abstract:
    Maintaining genome integrity is essential for an organism, as mutation accumulation can lead to cancer, reduced fitness, and heritable diseases in offspring. Therefore the study of mutations, how they are induced, and how they are prevented is vital. Biomonitor systems are useful for understanding the relevant biological effects of a...
    Resource Type:
    Dissertation

  • An emerging role for the exocyst : plant morphogenesis

    Creator:
    Cole, Rex A.
    Abstract:
    Plants develop a vast array of cell shapes and sizes by selectively modifying their surrounding cell walls to expand in some regions and not in others. This process of morphogenesis requires the delivery of secretory vesicles to specific locations at the cell periphery, where exocytosis adds new membrane and proteins...
    Resource Type:
    Dissertation
    Full Text:
    . Snyder, and H. Pham. Finally, thanks to my committee members, John Fowler, Theresa Filtz, Carol Rivin