Streptomyces nigrescens Dataset NCBI Taxonomy Rank SPECIES Classification phylum Actinomycetota class Actinomycetes order Kitasatosporales family Streptomycetaceae genus Streptomyces species Streptomyces nigrescens Name Synonyms "Actinomyces nigrescens" Sveshnikova in Gauze et al. 1957 Actinomyces nigrescens Streptomyces ruanii Streptomyces ruanii Kumar and Goodfellow 2008 Homonyms Streptomyces nigrescens