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Halomonas saccharevitans sp. nov., Halomonas arcis sp. nov. and Halomonas subterranea sp. nov., halophilic bacteria isolated from hypersaline environments of China

Xue-Wei Xu^1,, Yue-Hong Wu^1,, Zhen Zhou¹, Chun-Sheng Wang², Yu-Guang Zhou³, Hui-Bin Zhang⁴, Yong Wang¹ and Min Wu¹

¹ College of Life Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
² Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, People's Republic of China
³ Institute of Microbiology, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
⁴ Altun Mountain National Nature Reserve Administration, Kuerle 841000, People's Republic of China

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

Three strains of Gram-negative, aerobic, neutrophilic and halophilic bacteria were isolated from samples of a salt lake on the Qinghai–Tibet Plateau and a subterranean saline well in the Si-Chuan Basin of China. These isolates, designated AJ275^T, AJ282^T and ZG16^T, were investigated using a polyphasic approach. Based on 16S rRNA gene sequence analysis, the isolates could be affiliated to the genus Halomonas. Genomic DNA G+C contents were 65.9 mol% for AJ275^T, 56.7 mol% for AJ282^T and 57.6 mol% for ZG16^T. The results of DNA–DNA hybridizations, fatty acid analysis and physiological and biochemical tests allowed the isolates to be differentiated genotypically and phenotypically from closely related species. It is proposed that strains AJ275^T (=CGMCC 1.6493^T=JCM 14606^T=LMG 23976^T), AJ282^T (=CGMCC 1.6494^T=JCM 14607^T=LMG 23978^T) and ZG16^T (=CGMCC 1.6495^T=JCM 14608^T=LMG 23977^T) represent the type strains of three novel species in the genus Halomonas: Halomonas saccharevitans sp. nov., Halomonas arcis sp. nov. and Halomonas subterranea sp. nov., respectively.

These authors contributed equally to this work.

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