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. 1993 Jan;175(2):510–518. doi: 10.1128/jb.175.2.510-518.1993

Genetic determinants of host ranges of Bacillus sphaericus mosquito larvicidal toxins.

C Berry 1, J Hindley 1, A F Ehrhardt 1, T Grounds 1, I de Souza 1, E W Davidson 1
PMCID: PMC196166  PMID: 8419297

Abstract

The 51.4-kDa-41.9-kDa binary toxin produced by different strains of Bacillus sphaericus shows differential activity toward Culex quinquefasciatus, Aedes atropalpus, and Aedes aegypti mosquito larvae. The patterns of larvicidal activity toward all three mosquito species and growth retardation in A. aegypti have been shown to be due to the 41.9-kDa protein. By using mutant toxins expressed in Escherichia coli, insecticidal activity and growth retardation correlated with amino acids centered around position 100 of the 41.9-kDa protein. In its response to these toxins, A. atropalpus resembled C. quinquefasciatus rather than its congener, A. aegypti.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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