[Effect of physicochemical factors on Bacillus thuringiensis sporulation]

Spore germination was studied in Bacillus thuringiensis subsp. galleriae. Optimal temperature regimes were selected for spore activation and initiation. The formation of spores and the rate of their subsequent germination were shown to depend on the composition of growth media in which the organism was cultivated. The paper describes changes in the fine structure of spores at different stages of their germination.