[Influence of radiation-induced electrolytic shifts upon the metabolism: VII. On the question of equivalence of K+-loss and Na+-uptake (author's transl)].

Irradiated and nonirradiated yeast cells in three different metabolic conditions were incubated with four different culture mediums at various K+/Na+-concentrations and with or without glucose. The losses of K+ and the incorporation of Na+ are analysed after five hours and represented as balance values. Equivalent shifts appear in metabolic stagnation but not with metabolizing cells. The balance values nevertheless are equal in irradiated and in nonirradiated samples. This means that the radiation-induced additional exchange always is equivalent. This finding indicates a membranous modification as cause of radiation-induced electrolytic shifts.