mycobacterium avium silvaticum mycobacterium avium silvaticum mycobacterium avium subsp. silvaticum 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 avium subsp. silvaticum scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: mycobacteriales family: mycobacteriaceae genus: mycobacterium species: m. avium subsp. silvaticum trinomial name mycobacterium avium subsp. silvaticumthorel et al. 1990, atcc 49884 type strain: strain 6409 = atcc 49884 = ccug 47446 = cip 103317 = dsm 44175. mycobacterium avium subsp. silvaticum thorel et al. 1990 was previously known as mycobacterium avium strain wood pigeon.