Comparative Antigenic Analysis of "Gordona aurantiaca" and Mycobacterium fallax

Abstract

Treatment of mycobacterial cells with Triton X-100 allowed the extraction and solubilization of antigens. Such extracts provided species-specific crossed immunoelectrophoresis profiles which demonstrated that “Gordona aurantiaca” and Mycobacterium fallax are antigenically distinct. Using the Mycobacterium bovis BCG antiserum as a reference, we showed that M. fallax and M. bovis BCG are more related to each other than “G. aurantiaca” is to both species.