streptomyces crystallinus streptomyces crystallinus streptomyces crystallinus is a bacterium species from the genus of streptomyces. streptomyces crystallinus produces hygromycin a. streptomyces crystallinus scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: streptomycetales family: streptomycetaceae genus: streptomyces species: s. crystallinus binomial name streptomyces crystallinustresner et al. 1961 type strain as 4.16, cgmcc 4.1600, dsm 40945, ifo 15401, jcm 5067, kcc s-1067, kccs-1067, kctc 9717, lederle labst-1384, ms1483, nbrc 15401, ncimb 12860, nrrl b-3629