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Novel Chitinolytic Enzymes with Biological Activity Against Herbivorous Insects

Broadway, Roxanne ; Gongora, Carmenza ; Kain, Wendy ; Sanderson, John ; Monroy, Jose ; Bennett, K. ; Warner, Jason ; Hoffmann, Michael

In: Journal of Chemical Ecology, 1998, vol. 24, no. 6, p. 985-998

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    Title
    • Novel Chitinolytic Enzymes with Biological Activity Against Herbivorous Insects
    Author
    • Broadway, Roxanne. Department of Entomology, NY State Agricultural Experiment Station, Cornell University, 14456, Geneva, New York
    • Gongora, Carmenza. Department of Entomology, NY State Agricultural Experiment Station, Cornell University, 14456, Geneva, New York
    • Kain, Wendy. Department of Entomology, NY State Agricultural Experiment Station, Cornell University, 14456, Geneva, New York
    • Sanderson, John. Department of Entomology, Cornell University, 14853, Ithaca, New York
    • Monroy, Jose. Department of Entomology, Cornell University, 14853, Ithaca, New York
    • Bennett, K.. Department of Entomology, Cornell University, 14853, Ithaca, New York
    • Warner, Jason. Department of Entomology, Cornell University, 14853, Ithaca, New York
    • Hoffmann, Michael. Department of Entomology, Cornell University, 14853, Ithaca, New York
    Document Type
    • Postprint
    Language
    • English
    Published in
    • Journal of Chemical Ecology, 1998, vol. 24, no. 6, p. 985-998. Kluwer Academic Publishers-Plenum Publishers
    Other Version
    OAI-PMH Identifier
    • oai:doc.rero.ch:318847
    Summary
    The soil bacteria, Streptomyces albidoflavus, secretes endochitinases and chitobiosidases that are active over a broad range of pH (4-10). Ingestion of this mixture of chitinolytic enzymes significantly reduced the growth and development of Trichoplusia ni and significantly reduced survival of Myzus persicae, Bemisia argentifolii, and Hypothenemus hampei. Perfusion chromatography was used to separate endochitinases from chitobiosidases. The endochitinases had significantly greater biological activity against Bemisia argentifolii than the chitobiosidases. The utility of chitinolytic enzymes as regulators of populations of herbivorous insects is discussed