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Halorubrum arcis sp. nov., an extremely halophilic archaeon isolated from a saline lake on the Qinghai–Tibet Plateau, China

¹ College of Life Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
² Altun Mountain National Nature Reserve Administrative, Kuerle 841000, People's Republic of China

Correspondence
Min Wu
wumin{at}zju.edu.cn

A Gram-negative, aerobic, neutrophilic and extremely halophilic archaeon (strain AJ201^T), isolated from Ayakekum salt lake on the Qinghai–Tibet Plateau, was investigated by a polyphasic approach. The DNA G+C content of strain AJ201^T was 65.7 mol%. The major polar lipid profile and phylogenetic analysis based on 16S rRNA gene sequences supported the allocation of the strain to the genus Halorubrum. The results of DNA–DNA hybridizations and physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain AJ201^T from closely related species. Therefore, strain AJ201^T represents a novel species of the genus Halorubrum, for which the name Halorubrum arcis sp. nov. is proposed. The type strain is strain AJ201^T (=CGMCC 1.5343^T=JCM 13916^T).

Results of one-dimensional TLC of polar lipids of Hrr. saccharovorum CGMCC 1.2147^T and strain AJ201^T are available as supplementary material in IJSEM Online.

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