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Int J Syst Evol Microbiol 59 (2009), 417-420; DOI  10.1099/ijs.0.002899-0
© 2009 International Union of Microbiological Societies

Nocardia jinanensis sp. nov., an amicoumacin B-producing actinomycete

Wei Sun1, Yue-Qin Zhang1, Ying Huang2, Yu-Qin Zhang1, Zhao-Yong Yang1 and Zhi-Heng Liu2

1 The National Key Laboratory for Screening New Microbial Drugs, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences, Beijing 100050, PR China
2 State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China

Correspondence
Yue-Qin Zhang
zyq_0525{at}yahoo.com.cn
Ying Huang
huangy{at}im.ac.cn

A novel actinomycete, strain 04-5195T, that produces amicoumacin B, which targets bone morphogenetic protein-2, was isolated from a soil sample collected in Jinan, Shandong Province, China. Strain 04-5195T had morphological, biochemical, physiological and chemotaxonomic properties that were consistent with its classification in the genus Nocardia and it formed a phyletic line in the Nocardia 16S rRNA gene tree. It was evident from the phylogenetic data that strain 04-5195T was most closely associated with Nocardia speluncae N2-11T. However, the two organisms were distinguishable from one another using DNA–DNA relatedness and phenotypic data. The isolate was readily differentiated from other related Nocardia strains by a set of phenotypic properties and by its phylogenetic position. Therefore, it is proposed that the isolate represents a novel species in the genus Nocardia, Nocardia jinanensis sp. nov.; the type strain is 04-5195T (=CGMCC 4.3508T =DSM 45048T).

Abbreviations: BMP-2, bone morphogenetic protein-2

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain 04-5195T is DQ462650.

A scanning electron micrograph of cells of strain 04-5195T, an extended 16S rRNA gene sequence-based neighbour-joining tree and a comparison between the cultural characteristics of strain 04-5195T and N. speluncae DSM 45078T are available as supplementary material with the online version of this paper.






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