THREE NEW SPECIES OF THE GENUS STREPTOMYCES: STREPTOMYCES COCHLEATUS SP. NOV., STREPTOMYCES PARACOCHLEATUS SP. NOV., AND STREPTOMYCES AZATICUS SP. NOV.

[摘要] Three actinomycete strains isolated from soil, ‘Streptomyces candidus subsp. azaticus’ IFO 13803T (T=type strain) and ‘Nocardiopsis streptosporus’ IFO 14362T were found to contain both LL- and meso-2, 6-diaminopimelic acid (A2pm) in their cell wall peptidoglycans and supposed to belong to new members of Streptomyces, yielded by unification of the genus Kitasatosporia with the genus Streptomyces. Based on the phenetic and DNA-DNA hybridization studies, these strains were considered to belong to new species of the genus Streptomyces. We propose the names Streptomyces cochleatus sp. nov. for the species represented by the soil isolate M-5T (=IFO 14768T) and S. paracochleatus sp. nov. for the soil isolate M-13T (=IFO 14769T), and S. azaticus sp. Nov. for strain IFO 13803T. ‘Nocardiopsis streptosporus’ IFO 14362T and ‘Kitasatosporia brunnea’ IFO 14627T were included in S. phosalacinea. ‘K. melanogena’ IFO 14327T, ‘K. cystarginea’ IFO 14836T and ‘K. kifunense’ IFO 15206T were new species belonging to the genus Streptomyces. ‘K. clausa’ IFO 15240T was supposed to belong to a maduromycete. ‘K. papulosa’ and ‘K. grisea’ are synonymous, and should be reclassified as a species belonging to the cluster consisting of original Streptomyces species.

[学科分类] 微生物学和免疫学