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  • 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

  • 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
    Full Text:
    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

  • Characterization of the transition to the progamic phase in Zea mays pollen

    Creator:
    Smyth, Johanna C.
    Abstract:
    The transition of mature pollen to the progamic phase represents an important step in the regulation of plant sexual reproduction. The progamic phase encompasses the initiation of pollen tube germination, growth of the pollen tube through the stigma (the silk in maize) and concludes with fertilization of the female gametophyte....
    Resource Type:
    Dissertation
    Full Text:
    thank each of my committee members for pushing me to become a better scientist and writer: Carol Riven