"Streptomyces nigra" Chen et al. 2018 Dataset NCBI Taxonomy Classification phylum Actinomycetota class Actinomycetes order Kitasatosporales family Streptomycetaceae genus Streptomyces species Streptomyces nigra Name Homonyms Streptomyces nigra "Streptomyces nigra" Chen et al. 2018