Production of the lepidoptera-specific crystal protein by a local isolate of Bacillus thuringiensis |
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Authors: | P Afkhami G Özcengiz N G Alaeddinoglu |
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Institution: | (1) Department of Biology, Middle East Technical University, 06531 Ankara, Turkey |
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Abstract: | Summary A local isolate of Bacillus thuringiensis (B.t.81) produced crystal protein which was identified as a cry I gene of Class I. The synthesis and assembly of crystal complements were investigated at intervals throughout the growth cycle. Incubation temperature had a marked effect on toxin synthesis; production being the highest at 25°C and the lowest at 42°C. The mutants of B. t. 81, unable to synthesize crystal protein complements, have also been described. |
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