1887

Abstract

A Gram-staining-negative, strictly aerobic, non-gliding, rod-shaped bacterial strain, designated SW105, was isolated from a seawater sample collected from the Indian Ocean. The strain produced flexirubin-type pigments and grew at 15–45 °C (optimum, 35 °C), at pH 5.5–8.5 (optimum, pH 7.0–7.5) and in the presence of 0–5.0 % (w/v) NaCl (optimum, 1.0–1.5 %). The predominant cellular fatty acids were iso-C, summed feature 3 (comprising Cω7 and/or Cω6), iso-Cω9 and iso-C 3-OH. The major menaquinone was menaquinone 6 (MK-6) and the major polar lipids were phosphatidylethanolamine and two unidentified aminophospholipids. The genomic DNA G+C content of strain SW105 was 36.2 mol%. Phylogenetic analyses based on 16S rRNA gene sequences revealed that the novel isolate was related to members of the genus , showing the highest similarity to DS-12 and CCUG 52969 (94.3 and 93.0 % sequence similarity, respectively). On the basis of phylogenetic inference and phenotypic characteristics, it is proposed that strain SW105 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is SW105 ( = CGMCC 1.10825 = JCM 18132).

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2013-10-01
2019-10-23
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