An Insect Toxin from Spores of Bacillus thuringiensis and Bacillus cereus
Authors:
- H. J. SomervilleHSH. J. Somerville
Open Access
- 1 April 1975
- journal article
- Published by Microbiology Society in Journal of General Microbiology
- Vol. 87 (2) , 359-369
Abstract
SUMMARY: Spores of Bacillus thuringiensis contain a toxin active against lepidopterous larvae. This toxin can be solubilized extraction with reagents which dissolve the protein crystal of B. thuringiensis. It is inactivated crystal-specific antiserum. Spores of Bacillus cereus contain a similar toxin although the specific activity is much lower than the spores of B. thuringiensis. The B. cereus toxin contains a single major polypeptide component. Toxic activity can be solubilized from spores of both species incubation with gut juices from Pieris brassicae.Keywords
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