[Methods for identification of rhodochrous bacterial complex].

Branching observation, color and emulsionability of colonies, growth on BHI-agar, Mc Conkey-agar, Sabouraud, Mannitol Salt-agar, galattosidase, degradation of polyethylene glicol in 7H-10 medium, drug sensitivity to antituberculous drugs and semi-synthetic penicillins are reactions able to differentiate the rhodochrous complex from pathogenic pigmented Mycobacteria and Nocardia. Numerical taxonomy performed among 14 strains belonging to rhodochrous complex and 17 strains of Nocardia revealed a distinct separation of the two species and the non omogeneity of rhodochrous complex.