Transfer of the toxin protein genes of Bacillus sphaericus into Bacillus thuringiensis subsp. israelensis and their expression

Autor(es): Bourgouin C,Delécluse A,de la Torre F,Szulmajster J


Resumo: The genes encoding the toxic determinants of Bacillus sphaericus have been expressed in a nontoxic and a toxic strain of Bacillus thuringiensis subsp. israelensis. In both cases, the B. sphaericus toxin proteins were produced at a high level during sporulation of B. thuringiensis and accumulated as crystalline structures. B. thuringiensis transformants expressing B. sphaericus and B. thuringiensis subsp. israelensis toxins did not show a significant enhancement of toxicity against Aedes aegypti, Anopheles stephensi, and Culex pipiens larvae.


Imprenta: Applied and Environmental Microbiology, v. 56, n. 2, p. 340-344, 1990


Descritores: Aedes aegypti - Cell ; Aedes aegypti - Pathogenesis ; Aedes aegypti - Proteins


Data de publicação: 1990