1887

Abstract

A Gram-stain-negative, strictly aerobic, non-flagellated, rod-shaped bacterial strain, designated DC003, was isolated from the alga Gracilariablodgettii of the phylum Rhodophyta collected from the coast of Lingshui county, Hainan, China. The strain grew optimally at 28 °C, pH 7.0–7.5 and in the presence of 2.0–3.0 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences revealed strain DC003 to be within the genus Reichenbachiella , and most closely related to Reichenbachiella agariperforans JCM11238 (94.5 %), followed by Reichenbachiella faecimaris JCM 16588 (94.2 %). The major respiratory quinone was menaquinone 7 and the major fatty acids were iso-C15 : 0 and summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH). The polar lipids consisted of phosphatidylethanolamine, two unidentified aminophospholipids, three unidentified phospholipids and 10 unidentified lipids. The G+C content of the genomic DNA was 37.1 mol%. On the basis of the phenotypic, genotypic and phylogenetic analysis, strain DC003 is considered to represent a novel species of the genus Reichenbachiella , for which the name Reichenbachiella versicolor sp. nov. is proposed. The type strain is DC003 (=KCTC 42867=MCCC 1H00130).

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2018-09-19
2019-10-23
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