title: Streptomyces laurentii, a new species producing thiostrepton.
abstract: The taxonomic description of Streptomyces laurentii, a new species related to but distinguishable from the S. fradiae group, is presented. This new species produces thiostrepton but bears no taxonomic relationship to the known producers of the antibiotic: S. azureus, S. hawaiiensis, and Streptomyces X-14b.
mesh_terms: D000900:Anti-Bacterial Agents / Q000096:biosynthesis*; D055598:Chemical Phenomena; D002621:Chemistry; D013302:Streptomyces / Q000166:cytology / Q000254:growth & development / Q000378:metabolism*; D013883:Thiostrepton / Q000032:analysis / Q000096:biosynthesis*
chemical_list: D000900:Anti-Bacterial Agents; D013883:Thiostrepton