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Applied and Environmental Microbiology, January 2001, p. 462-463, Vol. 67, No. 1
0099-2240/01/$04.00+0   DOI: 10.1128/AEM.67.1.462-463.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.

Cyt1A from Bacillus thuringiensis Lacks Toxicity to Susceptible and Resistant Larvae of Diamondback Moth (Plutella xylostella) and Pink Bollworm (Pectinophora gossypiella)

Susan K. Meyer,1 Bruce E. Tabashnik,1,* Yong-Biao Liu,1 Margaret C. Wirth,2 and Brian A. Federici2

Department of Entomology, University of Arizona, Tucson, Arizona 85721,1 and Department of Entomology and Interdepartmental Graduate Programs in Genetics and Microbiology, University of California, Riverside, California 925212

Received 18 August 2000/Accepted 9 October 2000

We tested Cyt1Aa, a cytolytic endotoxin of Bacillus thuringiensis, against susceptible and Cry1A-resistant larvae of two lepidopteran pests, diamondback moth (Plutella xylostella) and pink bollworm (Pectinophora gossypiella). Unlike previous results obtained with mosquito and beetle larvae, Cyt1Aa alone or in combination with Cry toxins was not highly toxic to the lepidopteran larvae that we examined.

* Corresponding author. Mailing address: Department of Entomology, 410 Forbes, 1140 S. Campus Dr., University of Arizona, Tucson, AZ 85721. Phone: (520) 621 1141. Fax: (520) 621 1150. E-mail: brucet{at}ag.arizona.edu.

Applied and Environmental Microbiology, January 2001, p. 462-463, Vol. 67, No. 1
0099-2240/01/$04.00+0   DOI: 10.1128/AEM.67.1.462-463.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.


This article has been cited by other articles:

  • Sayyed, A. H., Crickmore, N., Wright, D. J. (2001). Cyt1Aa from Bacillus thuringiensis subsp. israelensis Is Toxic to the Diamondback Moth, Plutella xylostella, and Synergizes the Activity of Cry1Ac towards a Resistant Strain. Appl. Environ. Microbiol. 67: 5859-5861 [Abstract] [Full Text]  


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