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1 Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China
2 Department of Biology, North China Coal Medical College, Tangshan, Hebei 063000, PR China
3 Biological Resource Center, Korea Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
Correspondence
Yu-Qin Zhang
zhyuqin{at}126.com
Yue-Qin Zhang
zyq_0525{at}yahoo.com.cn
The taxonomic position of a Gram-stain-positive, aerobic strain, designated 03-9939T, isolated from a soil sample collected from Xinjiang Province, China, was established using a polyphasic approach. Whole-cell hydrolysates of strain 03-9939T contained galactose and ribose as diagnostic sugars and meso-diaminopimelic acid as the diamino acid. The predominant menaquinone was MK-9(H4). The phospholipids consisted of diphosphatidylglycerol, phosphatidylglycerol and phosphatidylcholine. The major fatty acids were iso-C16 : 0 (61.5 %) and iso-C16 : 1 H (11.6 %). The genomic DNA G+C content was 68.2 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain 03-9939T should be placed within the family Actinosynnemataceae, in which the strain formed a distinct lineage. Signature nucleotides in the 16S rRNA gene sequence showed that the strain contained a genus-specific diagnostic nucleotide signature pattern. The combination of phylogenetic analysis, phenotypic characteristics and chemotaxonomic data supported the conclusion that strain 03-9939T represents a novel species in a new genus of the family Actinosynnemataceae, for which the name Alloactinosynnema album gen. nov., sp. nov. is proposed. Strain 03-9939T (=DSM 45114T =KCTC 19294T =CCM 7461T) is the type strain of Alloactinosynnema album.
These authors contributed equally to this work. The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain 03-9939T is EU438907.
Scanning electron micrographs of growth of strain 03-9939T and its cellular fatty acid profile are available as supplementary material with the online version of this paper.
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