streptomyces fragilis streptomyces fragilis streptomyces fragilis is a bacterium species from the genus of streptomyces which has been isolated from soil in argentina. streptomyces fragilis produces the antibiotic azaserine. streptomyces fragilis scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: streptomycetales family: streptomycetaceae genus: streptomyces species: s. fragilis binomial name streptomyces fragilisanderson et al. 1956 type strain andersonc1437, atcc 23908, bcrc 13654, c 1437, cbs 804.68, ccrc 13654, cgmcc 4.1955, dsm 40044, eth 31506, hambi 1083, hambi 1090, ifo 12862, imet 43575, imru 3732, isp 5044, jcm 4187, jcm 4638, kcc s-0187, kcc s-0638, kccs-0187, kccs-0638, nbrc 12862, ncimb 9795, nihj 415, nrrl b-2424, nrrl 2424 , nrrl b-2424, nrrl-isp 5044, p-d 04926, parke, davis & co.pd04926, ria 1111, vkm ac-1773