VITAMIN REQUIREMENTS OF LISTERIA MONOCYTOGENES.

Welshimer, H. J. (Medical College of Virginia, Richmond). Vitamin requirements of Listeria monocytogenes. J. Bacteriol. 85:1156-1159. 1963.-Semidefined and completely defined media were used to determine the growth response of Listeria monocytogenes to several vitamins. All strains tested failed to grow for more than one or two passages in the absence of any one of the following vitamins: riboflavine, biotin, thiamine, and thioctic acid. The thioctic acid requirement and the antagonistic effect of its analogue, 8-methylthioctic acid, could be modified by altering the thiamine concentration.