mycobacterium colombiense mycobacterium colombiense mycobacterium colombiense 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 colombiense scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: mycobacteriales family: mycobacteriaceae genus: mycobacterium species: m. colombiense binomial name mycobacterium colombiensemurcia et al. 2006, cip 108962 etymology: colombiense, pertaining to colombia, the south american country where the strains were first isolated. type strain 10b = cect 3035 = cip 108962 = dsm 45105