title: New anthracycline antibiotics produced by interspecific recombinants of streptomycetes. I. Selection of Streptomyces violaceus subsp. iremyceticus, an iremycin-producing subspecies.
mesh_terms: D018943:Anthracyclines; D000900:Anti-Bacterial Agents / Q000096:biosynthesis*; D006824:Hybridization, Genetic; D009154:Mutation; D009279:Naphthacenes / Q000096:biosynthesis; D011995:Recombination, Genetic; D013045:Species Specificity; D013302:Streptomyces / Q000235:genetics* / Q000378:metabolism
chemical_list: D018943:Anthracyclines; D000900:Anti-Bacterial Agents; D009279:Naphthacenes; C028700:iremycin