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Lett Appl Microbiol. 1996 Sep;23(3):146-50.

Enterotoxin-producing strains of Bacillus thuringiensis isolated from food.

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1
Department of Ecology and Molecular Biology, Royal Veterinary and Agricultural University, Frederiksberg, Denmark.

Abstract

Strains of Bacillus thuringiensis were isolated from various food items (pasta, pitta bread and milk) and were found to belong to either H-serotype kurstaki or neoleonensis. The strains were bioassayed against Pieris brassicae and insecticidal activity of strains was found to correspond to the presence of the cry1A-gene. All strains, except one, were found to express cytotoxic effects on Vero cells as an indicator of enterotoxin activity. Further, the B. thuringiensis strains HD-1 (serotype kurstaki), NB-125 (serotype tenebrionis) and HD-567 (serotype israelensis ) which are used commercially for insect pest management, were also found to have cytotoxic effects on Vero cells.

[Indexed for MEDLINE]

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