[Use of aliphatic amino acids by staphylococcus cells during pigment biosynthesis].

A study was made of a possibility of incorporation of labeled amino acids into the composition of carotinoid pigment of the Staph. aureus. The use in the biosynthesis of Staph. aureus pigment of the following amino acids was demonstrated: valine, leucine, aspartate and glutamate. Carbon of amino acid radicals was mainly used in the carotinoid biosynthesis, this pointing to their preliminary decarboxylation by the corresponding decarboxylases of the bacterial cell.