mycobacterium komossense mycobacterium komossense mycobacterium komossense 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 komossense scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: mycobacteriales family: mycobacteriaceae genus: mycobacterium species: m. komossense binomial name mycobacterium komossensekazda and muller 1979, atcc 33013 description gram-positive, nonmotile, short to moderately long and acid-fast rods. colony characteristics eugonic, smooth, glistening and yellow-beige pigmented colonies. on middlebrook 7h10 agar 0.5-2mm in diameter with entire margins. physiology growth on löwenstein-jensen media and middlebrook 7h10 agar at temperatures between 22 °c-37 °c in less than 7 days. optimal growth at 31 °c, no growth at 45 °c. differential characteristics uniqueness of species supported by antigenic analysis (immunodiffusion) and specific lipid patterns. a numerical taxonomy comparison showed close relationship to mycobacterium aichiense. pathogenesis not known to be pathogenic in animals or humans. biosafety level 1 type strain first isolated from intact sphagnum vegetation in the komosse sphagnum bog in southern sweden and atlantic coastal area of norway. strain ko 2 = atcc 33013 = cip 105293 = dsm 44078 = hambi 2279 = hambi 2280 = jcm 12408.