[Action of ozone on the membrane-dependent functions of Candida utilis yeast cells]

The action of ozone on the structural-functional state of plasmic membranes was studied with Candida utilis cells. The damage of the membranes resulting in disorders of permeability barriers for nucleotides was not identical to damages which made the cells stained with methylene blue. The curve for the damage of membrane integrity (staining with methylene blue) coincided with the curve for the survival of C. utilis cells; therefore, the bacterial action of ozone consists mainly in damaging the surface cell structures.