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Bacitracin increases size of parasporal crystals and spores in Bacillus thuringiensis.
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Abstract
The effect of bacitracin on Bacillus thuringiensis is described. When added after the end of the exponential phase, it produces a marked increase in the size of spores and parasporal crystals. The cultures to which the antibiotic was added are able to produce more crystal proteins than non-treated cultures. The protein composition of crystals from bacitracin-treated cultures is the same as that of crystals purified from control cultures.