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Int J Syst Evol Microbiol 58 (2008), 1715-1718; DOI  10.1099/ijs.0.65737-0
© 2008 International Union of Microbiological Societies

Marinomonas arctica sp. nov., a psychrotolerant bacterium isolated from the Arctic

De-Chao Zhang1,2, Hui-Rong Li1, Yu-Hua Xin3, Hong-Can Liu3, Bo Chen1, Zhen-Ming Chi2, Pei-Jin Zhou3 and Yong Yu1

1 SOA Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai 200136, PR China
2 UNESCO Chinese Center of Marine Biotechnology, Ocean University of China, Qingdao 266003, PR China
3 China General Microbiological Culture Collection Center and State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China

Correspondence
Yong Yu
yuyong{at}pric.gov.cn

A novel psychrotolerant, Gram-negative, motile bacterium, designated strain 328T, was isolated from sea-ice samples collected off the Canadian Basin of the Arctic Ocean (7 ° 23' 14'' N 14 ° 06' 55'' W). Strain 328T was able to grow at 0–37 °C, with optimum growth at 25–27 °C. It possessed phosphatidylethanolamine and phosphatidylglycerol as major phospholipids and C10 : 0 3-OH (31.78 %), C18 : 1{omega}7c (27.50 %) and iso-C15 : 0 2-OH and/or C16 : 1{omega}7c (19.22 %) as predominant cellular fatty acids. The DNA G+C content of strain 328T was 45.2 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain 328T was a member of the genus Marinomonas (92.7–96.0 % 16S rRNA gene sequence similarity). On the basis of phenotypic, chemotaxonomic and phylogenetic distinctiveness, strain 328T was considered to represent a novel species of the genus Marinomonas. The name Marinomonas arctica sp. nov. is proposed, with strain 328T (=CGMCC 1.6498T=JCM 14976T) as the type strain.

Abbreviations: ECL, equivalent chain-length

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of Marinomonas arctica 328T is DQ492749.

A supplementary table showing the fatty acid profiles of strain 328T and other Marinomonas species is available with the online version of this paper.






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