[Change in the constructive metabolism and ultrastructural organization of Bacillus cereus cells under the influence of a specific autoregulatory factor].

It has been found for the first time that an increase in the concentration of a specific autoregulatory factor in the medium is responsible for the hypometabolic state of vegetative cells; no principal cellular biopolymers are synthesized at this state (DNA, RNA, proteins and phospholipids), and no cellular structures are degraded. When the culture reverses to vegetative growth observed in the same medium, synthesis of the biopolymers is intensified and changes are detected in the ultrastructural organization of the cellular membranous apparatus, the cytoplasm, the nucleoide and the cell wall.