TABLE 3.

Currently recognized taxa or species of nonpigmented (or late-pigmenting) RGM

Taxon or species
Common human pathogens
    M. chelonae
    M. abscessus
    M. fortuitum
Infrequent but proven human pathogens
    M. fortuitum third biovariant complex
        Sorbitol positive
            M. mageritense
            M. houstonense (proposed species)
        Sorbitol negative
            M. septicum
            M. bonickei (proposed species)
    M. mucogenicum
    M. immunogenum
    M. smegmatis group
        M. smegmatis (sensu stricto)a
        M. goodiia
        M. wolinskyi
    M. peregrinum
        Type 1 (pipemidic acid susceptible)
        Type 2 (pipemidic acid resistant)
Unproven human pathogens
    M. agri
    M. chitae
    M. senegalense
    M. porcinum
  • a Some strains produce a late pigment.