streptoalloteichus tenebrarius streptoalloteichus tenebrarius streptoalloteichus tenebrarius is a bacterium that biosynthesizes the aminoglycoside antibiotics tobramycin and apramycin. streptoalloteichus tenebrarius scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: pseudonocardiales family: pseudonocardiaceae genus: streptoalloteichus species: s. tenebrarius binomial name streptoalloteichus tenebrarius(ex higgins and kastner, 1967) tamura et al., 2008 synonyms streptomyces tenebrarius higgins and kastner 1967