[Relationship between spore formation and exoproteinase synthesis in Bacillus thuringiensis]

The localization of exoproteinase in the conventionally "periplasmic" space of Bacillus thuringiensis was established. The enzyme located at the outer surface of the membrane was found, in the course of sporogenesis, within the spore where it could fulfill various functions. The role of glutamine synthetase was determined in the regulation of exoproteinase synthesis and sporogenesis. The both processes were inhibited in the conditions suppressing the activity of glutamine synthetase.