Exoprotease production by sporogenous and asporogenous mycobacillin non-producer mutants of Bacillus subtilis.

Mycobacillin non-producers, whether sporogenous or asporogenous, possess less exoprotease, but effective exoprotease producers are not always good mycobacillin yielders. There might exist a minimum level of exoprotease formation for elaboration of mycobacillin.