Liu Zhiheng, Shi Yanlin, Zhang Yamei, Zhou Zhihong, Lu Zhitang, Li Wei, Huang Ying, Rodríguez Carlos, Goodfellow Michael
State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100080, People's Republic of China.
School of Biology, King George VIth Building, University of Newcastle, Newcastle upon Tyne NE1 7RU, UK.
Int J Syst Evol Microbiol. 2005 Jul;55(Pt 4):1605-1610. doi: 10.1099/ijs.0.63654-0.
A soil actinomycete, strain 80-133(T), with the non-validly published name 'Microstreptospora cinerea', was the subject of a polyphasic study designed to clarify its taxonomic status. Comparative 16S rRNA gene sequence studies indicated that the organism belonged to the genus Streptomyces, a result in line with previous chemotaxonomic and morphological data. The strain belonged to the Streptomyces griseus clade, but could be distinguished from representatives of species assigned to this taxon by using DNA-DNA relatedness and phenotypic data. In light of these findings, it is proposed that the organism should be recognized as a novel species of the genus Streptomyces. The name proposed for this taxon is Streptomyces yanii sp. nov., with isolate 80-133(T) (=AS 4.1146(T)=JCM 3331(T)) as the type strain. It was also shown that representative strains of Streptomyces argenteolus, Streptomyces caviscabies, S. griseus and Streptomyces setonii belong to the same genomic species and have key phenotypic properties in common. It is proposed that S. caviscabies and S. setonii should be considered as later heterotypic synonyms of S. griseus and that S. argenteolus AS 4.1693(T) should also be assigned to this taxon.
一株土壤放线菌，菌株80-133(T)，其曾用未有效发表的名称“灰色小链孢菌（Microstreptospora cinerea）”，是一项旨在阐明其分类地位的多相研究的对象。16S rRNA基因序列比较研究表明，该菌株属于链霉菌属，这一结果与先前的化学分类学和形态学数据一致。该菌株属于灰色链霉菌进化枝，但通过DNA-DNA相关性和表型数据可与该分类单元中已确定的物种代表区分开来。鉴于这些发现，建议将该菌株认定为链霉菌属的一个新物种。为这个分类单元提议的名称是延边链霉菌（Streptomyces yanii）新种，以菌株80-133(T)（=AS 4.1146(T)=JCM 3331(T)）作为模式菌株。研究还表明，银色链霉菌、疮痂链霉菌、灰色链霉菌和西顿链霉菌的代表菌株属于同一基因组物种，并具有共同的关键表型特征。建议将疮痂链霉菌和西顿链霉菌视为灰色链霉菌的晚出异名，并且银色链霉菌AS 4.1693(T)也应归入该分类单元。
