1887

Abstract

A Gram-stain-negative, strictly aerobic, non-flagellated, non-gliding, oxidase- and catalase-positive, rod-shaped and orange-pigmented bacterium with appendages, designated strain SW027, was isolated from a surface seawater sample collected from the South Pacific Gyre (26° 29′ S 137° 56′ W) during the Integrated Ocean Drilling Program (IODP) Expedition 329. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain SW027 shared the highest sequence similarity with members of the genus (94.3–92.7 %), exhibiting 94.3 % sequence similarity to SW-62. Optimal growth occurred in the presence of 3 % (w/v) NaCl, at pH 7.0 and at 37 °C. The DNA G+C content of strain SW027 was 42.7 mol%. The major fatty acids were iso-C, iso-C G and iso-C 3-OH. The major respiratory quinone was menaquinone-6. The major polar lipids were phosphatidylethanolamine and two unidentified lipids. Enzymic activity profiles, cell morphology and DNA G+C content differentiated the novel bacterium from the most closely related members of the genus . On the basis of the polyphasic analyses, strain SW027 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is SW027 ( = JCM 17861 = LMG 26637).

Funding
This study was supported by the:
  • , the National Natural Science Foundation of China , (Award no. 41276141)
  • , the China Ocean Mineral Resources Research & Development Association , (Award no. DY125-15-R-03)
  • , the National High Technology Research & Development Program of China , (Award no. 2012AA091605)
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2015-11-01
2020-08-13
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