Formation of resting forms of Arthrobacter globiformis in autolyzing cell suspensions

Under conditions of the spontaneous or induced autolysis of thick cell susp ensions, Arthrobacter globiformis strains produced cells exhibiting feature s typical of resting microbial forms. The number of viable resting cells wa s greater under conditions of induced rather than spontaneous autolysis. Th e thermoresistance of the resting cells of A. globiformis strains isolated from 2- to 3 million-year-old permafrost was higher than that of the collec tion A. globiformis strain.