Abstract
At moderate concentration, 23 of 40 strains of Bacillus thuringiensis isolated from Sweden were toxic to Trichoplusia ni and five were toxic to Aedes aegypti. Five of the strains were toxic to Diabrotica undecimpunctata at high concentration, two were toxic to Heliothis virescens at low concentration and five produced thuringiensin (formerly called β-exotoxin). No strain was toxic towards the beet armyworm Spodoptera exigua at low concentration. Twenty-three of the strains produced a B. cereus-diarrhoeal-type enterotoxin.
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Additional information
A. Abdel-Hameed is with the Department of Microbiology, Faculty of Pharmacy, Cairo University, Kasr-El-Aini Street, Cairo, Egypt. R. Landén is with the Department of Microbiology, Stockholm University, S-10691 Stockholm, Sweden. A. Abdel-Hameed's present address is the Department of Applied Chemistry and Microbiology, P. O. Box 27, Viikki, Building B, FIN-00014 University of Helsinki;
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Abdel-Hameed, A., Landén, R. Studies on Bacillus thuringiensis strains isolated from Swedish soils: insect toxicity and production of B. cereus-diarrhoeal-type enterotoxin. World J Microbiol Biotechnol 10, 406–409 (1994). https://doi.org/10.1007/BF00144461
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DOI: https://doi.org/10.1007/BF00144461