1887

Abstract

Strain NH1, a pink-pigmented, facultatively anaerobic, heterotrophic, catalase-positive and oxidase-negative, Gram-stain-negative marine bacterium, was isolated from marine sediment on the coast of Weihai, China. Cells of strain NH1 were rod-shaped, 0.8–2.0 µm in length and 0.5–1.0 µm in width. The strain was able to grow at 13–37 °C, pH 5.5–8.5, in the presence of 0.0–8.0 % (w/v) NaCl. Optimal growth was observed at 28 °C, with 3.0 % (w/v) NaCl and pH 6.5–7.0. Nitrate was reduced. The G+C content of the DNA was 41.9 mol%. The major isoprenoid quinone was MK-7 and the main cellular fatty acids (>10 %) were summed feature 3 (33.6 %) comprising iso-C 2-OH and/or Cω7, and iso-C (19.2%). The major polar lipids in strain NH1 were phosphatidylethanolamine, unidentified lipids, phospholipid and aminolipids. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain NH1 was highly related to the type strains of (97.87 % 16SrRNA gene sequence similarity) and (97.56 %). On basis of the phenotypic and phylogenetic data, strain NH1 should be classified as representing a novel species of the genus , for which the name sp. nov. is proposed. The type strain is NH1 (=MCCC 1H00140=KCTC 52228).

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2017-05-01
2024-04-24
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