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Halobiforma lacisalsi sp. nov., isolated from a salt lake in China

¹ State Key Laboratory for Microbial Resources at Institute of Microbiology, Chinese Academy of Sciences, ZhongGuanCun, Haidian, Beijing 100080, PR China
² College of Life Sciences, Zhejiang University, Hangzhou 310027, PR China

Correspondence
Shuang-Jiang Liu
shuangjiang{at}hotmail.com

A Gram-negative, motile, neutrophilic and extremely halophilic strain, AJ5^T, was isolated from a salt lake in Xinjiang, China, and subjected to polyphasic taxonomic study. The major polar lipids of the isolate were C₂₀C₂₀ and C₂₀C₂₅ derivatives of phosphatidylglycerol, phosphatidylglycerol phosphate methyl ester and glycolipid. The DNA G+C content was 64·9 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain AJ5^T clustered with members of the genus Halobiforma, exhibiting high sequence similarity to the 16S rRNA gene sequences of Halobiforma nitratireducens (96·3 %) and Halobiforma haloterrestris (99·0 %). Comparative analysis of phenotypic characteristics and DNA–DNA hybridization between strain AJ5^T and Halobiforma species supported the conclusion that AJ5^T represents a novel species within this genus, for which the name Halobiforma lacisalsi sp. nov. is proposed. The type strain is AJ5^T (=CGMCC 1.3738^T=JCM 12983^T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain AJ5^T is AY277582.

Polar lipid profiles of strain AJ5^T and related species as revealed by one-dimensional TLC are available as supplementary material in IJSEM Online.

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