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  • Induction of apple defense genes by Erwinia amylovora and biological control agents

    Creator:
    Bauer, Lisa M.
    Abstract:
    Fire blight is a serious disease of apple and pear trees caused by the bacterium, Erwinia amylovora. This bacterium harbors a pathogenesis mechanism known as the Hrp secretory operon which induces some resistance genes and suppresses other resistance genes in the host plant following invasion. While previous researchers analyzed expression...
    Resource Type:
    Honors College Thesis
    Full Text:
    . Acknowledgments I would like to thank Virginia Stockwell for all the guidance and support that she has

  • Effect of iron on biological control of fire blight by Pseudomonas fluorescens A506

    Creator:
    Temple, Todd N.
    Abstract:
    Competitive exclusion has been the mechanism hypothesized to account for the biological control of fire blight disease of pear and apple by the bacterium Pseudomonas fluorescens A506 (A506). Recent laboratory assays demonstrated, however, that A506 produces an antibiotic that is toxic to the fire blight pathogen, Erwinia amylovora, when cultured...
    Resource Type:
    Masters Thesis
    Full Text:
    with laboratory work, I thank Virginia Stockwell, Joyce Loper, Teresa Sawyer, Nancy Chaney, Marcella