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Int J Syst Evol Microbiol 58 (2008), 2065-2069; DOI  10.1099/ijs.0.65436-0
© 2008 International Union of Microbiological Societies

Halomonas lutea sp. nov., a moderately halophilic bacterium isolated from a salt lake

Yun Wang1,{dagger}, Shu-Kun Tang2,{dagger}, Kai Lou1, Pei-Hong Mao3, Xiang Jin3, Cheng-Lin Jiang2, Li-Hua Xu2 and Wen-Jun Li2,4

1 Xinjiang Institute of Microbiology, Xinjiang Academy of Agricultural Science, Urumqi, Xinjiang 830091, PR China
2 The Key Laboratory for Microbial Resources of 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 The Center of Ion Beam Biotechnology, Xinjiang University, Urumqi, Xinjiang 830008, PR China
4 Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China

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

A Gram-negative, moderately halophilic bacterium, designated YIM 91125T, was isolated from a salt lake in Xinjiang province, north-west China. The isolate grew at salinities in the range 1–20 % (w/v) and at 4–45 °C. Optimal growth occurred at 37 °C, pH 7.5 and 5–10 % (w/v) NaCl. Cells were short rods motile by means of single polar flagella. The major fatty acids were C18 : 1{omega}7c, C16 : 0, C19 : 0 cyclo {omega}8c and C12 : 0 3-OH. The DNA G+C content was 60.8 mol%. The predominant respiratory quinone was Q-9. A comparison of 16S rRNA gene sequences revealed its relationship to Halomonas species, its closest neighbours being Halomonas pantelleriensis (95.9 % similarity to the type strain) and Halomonas muralis (95.4 % similarity). On the basis of chemotaxonomic, phylogenetic and phenotypic evidence, strain YIM 91125T represents a novel member of the genus Halomonas, for which the name Halomonas lutea sp. nov. is proposed. The type strain is YIM 91125T (=KCTC 12847T =CCTCC AB 206093T).

{dagger}These authors contributed equally to this work.

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain YIM 91125T is EF674852.






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