[Effect of cycloheximide on the ultrastructure and several metabolic processes of the cells of an SPEV culture. II].

The action of cyclohexamide (in doses of 1 and 10 mkg/ml in the course of 24 hours) on porcine embryo kidney cells in culture is accompanied by a powerful suppression of protein and DNA synthesis, mitotic activity, a weaker suppression of RNA synthesis, a lowering of the activity of succinate-, lactate- and alpha-glycerophosphate-dehydrogenase, which leads to disorders in the ultrastructure of the cells. After incubation of cells in a fresh medium (in the course of 18, 24 hours) there occurs a total restoration of the ultrastructure of the nuclei, granular endoplasmatic reticulum, mitochondria, due to the repairing and strong intensification of synthetic processes, respiration and glycolysis, mitotic activity of the cells.