New gene from nine Bacillus sphaericus strains encoding highly conserved 35.8-kilodalton mosquitocidal toxins

Author:

Liu J W1,Porter A G1,Wee B Y1,Thanabalu T1

Affiliation:

1. Institute of Molecular and Cell Biology, National University of Singapore, Republic of Singapore.

Abstract

A new gene encoding a 35.8-kDa mosquitocidal toxin (Mtx3; 326 amino acids) was isolated from Bacillus sphaericus SSII-1 DNA. Mtx3 is a new type of mosquitocidal toxin with homology to the Mtx2 mosquitocidal toxin of B. sphaericus SSII-1, the epsilon-toxin of Clostridium perfringens, and the cytotoxin of Pseudomonas aeruginosa. The mtx3 gene is highly conserved and widely distributed in both high- and low-toxicity mosquito larvicidal strains of B. sphaericus.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Reference19 articles.

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4. Cutting S. M. and P. B. van der Horn. 1990. Genetic analysis p. 27-74. In C. R. Harwood and S. M. Cutting (ed.) Molecular biological methods for Bacillus vol. 65. John Wiley & Sons Ltd. Chichester United Kingdom.

5. Serological classification of Bacillus sphaericus strains in relation with toxicity to mosquito larvae;de Barjac H.;Appl. Microbiol. Biotechnol.,1985

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