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    Author(s): C. Noah Koller; Leah S. Bauer; Robert M. Hollingworth
    Date: 1995
    Source: Journal of Invertebrate Pathology 66:90-91
    Publication Series: Scientific Journal (JRNL)
    Station: Northern Research Station
    PDF: Download Publication  (208.53 KB)


    The entomocidal CryIIIA δ-endotoxin protein of Bacillus thuringiensis var. tenebrionis is distinctive in chemistry and host range. In contrast to other δ-endotoxins, the CryIIIA parasporal crystals are toxic within the acidic midgut environment of several coleopteran species, particularly those in the family Chrysomelidae. Resistance to this toxin was successfully developed by laboratory selection of Leptinotarsa decemlineata (Whalon et al., 1993) and Chrysomela scripta (L. S. Bauer, D. L. Miller, and C. N. Koller, unpublished). Our investigations of the B. thuringiensis var. tenebrionis CryIIIA crystal toxin targets both the mode of action and the mechanisms of resistance in these insect species.

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    Koller, C. Noah; Bauer, Leah S.; Hollingworth, Robert M. 1995. A method for in Vivo radiolabeling Bacillus thuringiensis native δ-endotoxin crystals. Journal of Invertebrate Pathology 66:90-91

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