1887

Abstract

A pale yellow, ovoid- to rod-shaped and budding bacterium, designated strain M-S13-148, was isolated from a decayed bone of whale from the eastern coast of King George Island, South Shetlands, Antarctica. Strain M-S13-148 exhibited motility, aerobic growth and was Gram-stain-negative. Strain M-S13-148 was positive for catalase and oxidase. Growth was observed at pH 6.0–9.0, at 4–42 °C and with 0–14 % (w/v) NaCl. The novel strain contained diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine and an unknown phospholipid as the major polar lipids. The dominant cellular fatty acids were summed feature 8 (Cω7 and/or Cω6), (58.8 %) and C (11.7 %). The respiratory quinone was Q-10 and the DNA G+C content was 60.9 mol%. Neighbour-joining, maximum-likelihood and minimum-evolution phylogenetic trees, based on 16S rRNA gene sequences, indicated that strain M-S13-148 belonged to the genus and was most closely related to CCTCC AB 208317 (93.72 % 16S rRNA gene sequence similarity). The 16S rRNA gene sequence similarity with respect to members of the genus ranged from 91.81 to 93.94 %. On the basis of phenotypic, molecular and chemotaxonomic characteristics, strain M-S13-148 is considered to represent a novel species of the genus , for which the name sp. nov., is proposed. The type strain is M-S13-148 ( = CCTCC AB2014072 = LMG 28420).

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2015-07-01
2020-12-04
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