Imshenetskiĭ A A, Cherkesova G V, Kasatkina I D, Nesterova N G, Fetisova Z S
Mikrobiologiia. 1987 Nov-Dec;56(6):947-50.
The natural variability of the ability to synthesize proteinases by Bacillus mesentericus 64 was studied. The population of this strain was shown to be heterogeneous. Three types of variants (S, M and P) differed in the morphology of their colonies and in the culture characteristics from the typical colonies of the parent strain. The caseinolytic activity of the M variant was three times as high as that of the parent strain, and it also had an elevated fibrinolytic activity and a high rate of blood thrombolysis in experiments in vitro. The rate of proteinase synthesis correlated with the morphological types of sporogenic bacteria.
