streptomyces griseiniger streptomyces griseiniger streptomyces griseiniger is a bacterium species from the genus of streptomyces which has been isolated in australia. streptomyces griseiniger produces nigericin. streptomyces griseiniger scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: streptomycetales family: streptomycetaceae genus: streptomyces species: s. griseiniger binomial name streptomyces griseinigergoodfellow et al. 2008 type strain dsm 41895, ncimb 9628, nrrl b-1865, psa 77