mycobacterium doricum mycobacterium doricum mycobacterium doricum is a species of the phylum actinomycetota (gram-positive bacteria with high guanine and cytosine content, one of the dominant phyla of all bacteria), belonging to the genus mycobacterium. mycobacterium doricum scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: mycobacteriales family: mycobacteriaceae genus: mycobacterium species: m. doricum binomial name mycobacterium doricumausina et al. 1992, atcc 51304 it is a scotochromogenic mycobacterium. type strain strain fi-13295 = ccug 46352 = cip 106867 = dsm 44339 = jcm 12405.