1887

Abstract

A Gram-stain-negative, strictly aerobic, light-beige, rod-shaped, motile bacterium with peritrichous flagella that cleaves dimethylsulfoniopropionate (DMSP), designated strain LZD062, was isolated from bottom seawater of the East China Sea. The isolate required sea salts for growth and grew optimally at pH 8.0 and 28 °C and in the presence of 2 % (w/v) NaCl. The major fatty acid (>10 %) was summed feature 8 (Cω7 and/or Cω6) and the major polar lipids were phosphatidylglycerol, diphosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine, phosphatidylmonomethylethanolamine, one unidentified aminolipid and one unidentified glycolipid. Ubiquinone Q-10 was the only quinone detected. Phylogenetic analyses based on 16S rRNA and gene sequences placed LZD062 within the genus of the family in the class . The most closely related type strain was, in both cases, JCM 20689 ( = IAM 12618 = DSM 5890), which gave sequence similarities of 97.7 % in the 16S rRNA gene and 90.4 % in the gene. Genome relatedness between strain LZD062 and JCM 20689 was computed using both genome-to-genome distance analysis and average nucleotide identity, giving values of 22.10 ± 2.35 and 79.55 %, respectively. The genomic DNA G+C content calculated from the genome sequence was 50.1 mol%. On the basis of our polyphasic analyses, strain LZD062 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is LZD062 ( = MCCC 1K00254 = JCM 30117 = DSM 28886). Emended descriptions of the genus and are also proposed.

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2016-02-01
2024-03-29
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