School of Life Science, Beijing Institute of Technology, Beijing 100081, PR China.
China General Microbiological Culture Collection Center, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China.
Int J Syst Evol Microbiol. 2013 Dec;63(Pt 12):4719-4723. doi: 10.1099/ijs.0.054734-0. Epub 2013 Aug 19.
A novel actinomycete, designated Z4(T), was isolated from soil in Yaan, Sichuan Province, south China. The taxonomic status of this strain was established using a polyphasic approach. The morphological and chemotaxonomic characteristics of the organism are typical of the members of the genus Streptomyces. Phylogenetic analysis based on the almost complete 16S rRNA gene sequence indicated that strain Z4(T) belonged to the genus Streptomyces, branching off next to Streptomyces durhamensis ATCC 23194(T) (98.7 %), Streptomyces puniciscabiei KACC 20253(T) (98.7 %) and Streptomyces filipinensis ATCC 23905(T) (98.6 %). However, DNA-DNA hybridization studies and phenotypic differences between strain Z4(T) and closely related species of the genus Streptomyces suggested that strain Z4(T) represented a different genomic species. It is therefore proposed that Z4(T) ( = CGMCC 4.7035(T) = KCTC 29111(T)) represents the type strain of a novel species of the genus Streptomyces, for which the name Streptomyces yaanensis sp. nov. is proposed.
一株新型放线菌，命名为 Z4(T)，从中国南方四川省雅安市的土壤中分离得到。该菌株的分类地位是通过多相方法确定的。该生物的形态和化学生态特征是典型的链霉菌属成员。基于近乎完整的 16S rRNA 基因序列的系统发育分析表明，菌株 Z4(T)属于链霉菌属，与链霉菌属的 Durhamensis ATCC 23194(T)（98.7%）、链霉菌属的 Puniceusciabiei KACC 20253(T)（98.7%）和链霉菌属的 Filipinensis ATCC 23905(T)（98.6%）相邻。然而，DNA-DNA 杂交研究和菌株 Z4(T)与亲缘关系较近的链霉菌属种之间的表型差异表明，菌株 Z4(T)代表了一个不同的基因组种。因此，建议 Z4(T)（=CGMCC 4.7035(T)=KCTC 29111(T)）代表链霉菌属一个新种的模式菌株，建议将其命名为雅氏链霉菌（Streptomyces yaanensis sp. nov.）。
