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Glaciecola psychrophila sp. nov., a novel psychrophilic bacterium isolated from the Arctic
Abstract
A novel bacterial strain, designated 170T, 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 170T 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 170T contained C16 : 1 ω7c, C16 : 0, C12 : 1 3-OH and C18 : 1 ω7c 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 170T is considered to represent a novel species of the genus Glaciecola, for which the name Glaciecola psychrophila is proposed. The type strain is 170T (=CGMCC 1.6130T=JCM 13954T).
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