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Glaciecola psychrophila sp. nov., a novel psychrophilic bacterium isolated from the Arctic

¹ State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100094, China
² State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100080, China
³ SOA Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai 200136, China

Correspondence
Pei-Jin Zhou
zhou{at}sun.im.ac.cn

A novel bacterial strain, designated 170^T, was collected from high latitude Arctic locations (77° 30' N to approximately 81° 12' N), including the Canadian Basin and Greenland Sea. Phylogenetic analysis based on 16S rRNA gene sequence comparisons showed that strain 170^T was related to members of the genus Glaciecola and had the highest 16S rRNA gene sequence similarity to Glaciecola mesophila. Cells were Gram-negative, psychrophilic, motile rods. The temperature range for growth was 4–15 °C, with optimum growth at 12 °C and at approximately pH 6.0–9.0. Strain 170^T contained C_{16 : 1}7c, C_{16 : 0}, C_{12 : 1} 3-OH and C_{18 : 1}7c as major fatty acids. The genomic DNA G+C content was 42.9 mol%. On the basis of phenotypic characterization, phylogenetic analysis and DNA–DNA relatedness data, strain 170^T is considered to represent a novel species of the genus Glaciecola, for which the name Glaciecola psychrophila is proposed. The type strain is 170^T (=CGMCC 1.6130^T=JCM 13954^T).

A table showing the fatty acid profile of strain 170^T and other Glaciecola species is available as supplementary material in IJSEM Online.

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