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Int J Syst Evol Microbiol 59 (2009), 1924-1928; DOI  10.1099/ijs.0.005918-0
© 2009 International Union of Microbiological Societies

Paracoccus saliphilus sp. nov., a halophilic bacterium isolated from a saline soil

Yun Wang1,{dagger}, Shu-Kun Tang2,{dagger}, Kai Lou1, Pei-Hong Mao3, Xiang Jin3, Cheng-Lin Jiang2, Li-Hua Xu2 and Wen-Jun Li2

1 Xinjiang Institute of Microbiology, Xinjiang Academy of Agricultural Science, Urumqi, Xinjiang 830091, PR China
2 The Key Laboratory for Microbial Resources of the Ministry of Education, PR China, and Laboratory for Conservation and Utilization of Bio-Resources, Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, PR China
3 Institute of Ion Beam Biotechnology, College of Physics Science and Technology, Xinjiang University, Urumqi, Xinjiang 830008, PR China

Correspondence
Wen-Jun Li
wjli{at}ynu.edu.cn
or
liact{at}hotmail.com

A Gram-negative, coccoid to short rod-shaped, non-spore-forming, moderately halophilic bacterium, designated strain YIM 90738T, was isolated from a salt lake in Xinjiang province, north-west China, and was subjected to a polyphasic taxonomic study. The strain was non-motile and grew at pH 6.0–8.0 (optimal growth at pH 7.0), 10–55 °C (optimal growth at 37 °C) and salinities of 1–15 % NaCl (w/v, optimal growth at 8 % NaCl). Ubiquinone 10 was detected as the major respiratory quinone. The cellular fatty acid profile had C18 : 1{omega}7c (80.4 % of the total) as the major component, similar to those of members of the genus Paracoccus. The nearest phylogenetic neighbour of strain YIM 90738T was the type strain of Paracoccus homiensis, as determined by 16S rRNA gene sequence analysis (97.5 % similarity). The level of DNA–DNA relatedness between P. homiensis DSM 17862T and strain YIM 90738T was 51.5 %. The G+C content of the genomic DNA of strain YIM 90738T was 60.3 mol%. On the basis of phenotypic and phylogenetic data and its genotypic distinctiveness, strain YIM 90738T (=CCTCC AB 206074T =KCTC 22163T) is proposed as the type strain of a novel species of the genus Paracoccus, Paracoccus saliphilus sp. nov.

{dagger}These authors contributed equally to this work.

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain YIM 90738T is DQ923133.






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