1887

Abstract

A novel rod-shaped, Gram-stain-negative, non-gliding and aerobic strain surrounded by a multilayer capsule, designated 4-T-2, was isolated from a till sample of Collins glacier front, Antarctica. The bacterium formed yellow, circular, convex and smooth colonies. Growth occurred at 4–28 °C (optimum18–20 °C), at pH 7.0–10.0 (optimum pH 9.0) and with 0–1 % NaCl. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain 4-T-2 belonged to the genus . Strain 4-T-2 shared the highest 16S rRNA gene sequence similarity with the type strain of (96.7 %). The DNA G+C content of strain 4-T-2 was 36.2 mol%. The only menaquinone was MK-6. The major cellular fatty acids were iso-C, iso-C G, iso-C and summed feature 9 (comprising iso-Cω9 and/or 10-methyl C). Polar lipid profile consisted phosphatidylethanolamine, one unidentified aminolipid, one unidentified aminophospholipid and one unidentified lipid. On the basis of phylogenetic, physiological and chemotaxonomic data, strain 4-T-2 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is 4-T-2 ( = CCTCC AB 2014004 = LMG 28257).

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2016-01-01
2022-01-22
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