1887

Abstract

A Gram-stain-negative, strictly aerobic, non-flagellated, non-gliding, oxidase-positive and yellow-pigmented rod-shaped bacterium, designated strain SW169, was isolated from a surface seawater sample collected from the South Pacific Gyre (27° 55′ S 123° 10′ W) during the Integrated Ocean Drilling Program (IODP) Expedition 329. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain SW169 belonged to the genus and showed the highest 16S rRNA gene sequence similarity with A11 (95.9 %). It showed 16S rRNA gene sequence similarities of 93.2–94.8 % with members of the genera and in the family . Optimal growth occurred in the presence of 3–4 % (w/v) NaCl, at pH 8.0 and at 28 °C. The DNA G+C content of strain SW169 was 43.3 mol%. The major fatty acids were iso-C G, iso-C, iso-C 3-OH, iso-C 3-OH and summed feature 3 (comprising Cω7 and/or Cω6,). The major respiratory quinone was menaquinone-6. The major polar lipids were phosphatidylethanolamine, one unidentified aminolipid and one unidentified lipid. On the basis of the polyphasic analyses, strain SW169 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is SW169 ( = JCM 18379 = LMG 26997). An emended description of the genus is also provided.

Funding
This study was supported by the:
  • National Natural Science Foundation of China (Award 41276141)
  • China Ocean Mineral Resources Research & Development Association
  • COMRA (Award DY125-15-R-03)
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2015-01-01
2024-12-04
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