streptomyces atratus streptomyces atratus streptomyces atratus is a bacterium species from the genus streptomyces which has been isolated from soil in shimoneda in japan. streptomyces atratus produces atramycin a, hydrazidomycins a, hydrazidomycins b, hydrazidomycins c, rufomycins a and rufomycins b. streptomyces atratus scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: streptomycetales family: streptomycetaceae genus: streptomyces species: s. atratus binomial name streptomyces atratusshibata et al. 1962 type strain 46408, as 4.1632, atcc 14046, cbs 364.68, cgmcc 4.1632, dsm 41673, ifo 3897, jcm 3386, nbrc 3897, nrrl b-16927