Nutrition of Animal Cells in Tissue Culture. VI. Low Toxicity of Barium.

Abstract
Relatively high concns. of Ba (1-1000 [mu]g./ml.) reduce the area of outgrowth of chick fibroblasts propagated in a medium containing fowl plasma and chick embryo extract. But these same concns. of Ba do not shorten the period of survival of chick embryo mesenchyme tissues maintained in a synthetic medium. Chemical analyses showed the Ba content of the natural and synthetic media that were used to be less than 5 [mu]g./10 ml.