Abstract
Susceptibility to sodium salicylate (0, 0.5 and 1.0mg/ml) on Sauton agar medium (3% agar) has been suggested to be useful for a rough differentiation of rapidly, growing mycobacteria, when used in combination with the test of temperature response. Growth of nonphotochromogenic mycobacteria on medium containing 1mg/ml salicylate seemed to suggest that the test organism belongs to one of M. fortuitum, M. parafortuitum (n. sp.), M. smegmatis, or M. phlei. M. fortuitum blackened markedly the medium containing salicylate.
