Activity of wild-type and hybrid Bacillus thuringiensis delta-endotoxins against Agrotis ipsilon

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    23 Citations (Scopus)

    Abstract

    Twelve Cry1 and two Cry9 ?-endotoxins fromBacillus thuringiensis were tested for their activity against black cutworm (Agrotis ipsilon).A. ipsilon was not susceptible to many toxins, but three toxins had significant activity. Cry9Ca was the most toxic, followed by Cry1Aa and Cry1Fb. Hybrids between these three active proteins were made by in vivo recombination and analyzed for activity againstA. ipsilon. Analysis of hybrids between Cry1Aa and Cry1Fb indicated that domain I of Cry1Aa protein was involved in its higher activity
    Original languageEnglish
    Pages (from-to)363-367
    JournalArchives of Microbiology
    Volume179
    DOIs
    Publication statusPublished - 2003

    Keywords

    • insecticidal crystal proteins
    • cry1c domain-iii
    • spodoptera-exigua
    • binding
    • specificity
    • noctuidae
    • toxins
    • lepidoptera
    • resistance
    • site

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