Cross-resistance of pink bollworm (Pectinophora gossypiella) to Bacillus thuringiensis toxins

B. E. Tabashnik, Y. B. Liu, R. A. De Maagd, T. J. Dennehy

Research output: Contribution to journalArticlepeer-review

57 Scopus citations


Two strains of pink bollworm (Pectinophora gossypiella) selected in the laboratory for resistance to Bacillus thuringiensis toxin Cry1Ac had substantial cross-resistance to Cry1Aa and Cry1Ab but not to Cry1Bb, Cry1Ca, Cry1Da, Cry1Ea, Cry1Ja, Cry2Aa, Cry9Ca, H04, or H205. The narrow spectrum of resistance and the cross-resistance to activated toxin Cry1Ab suggest that reduced binding of toxin to midgut target sites could be an important mechanism of resistance.

Original languageEnglish (US)
Pages (from-to)4582-4584
Number of pages3
JournalApplied and environmental microbiology
Issue number10
StatePublished - 2000

ASJC Scopus subject areas

  • Biotechnology
  • Food Science
  • Applied Microbiology and Biotechnology
  • Ecology


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