Reichenbachiella versicolor sp. nov., isolated from red alga

A Gram-stain-negative, strictly aerobic, non-flagellated, rod-shaped bacterial strain, designated DC003T, 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 DC003T to be within the genus Reichenbachiella, and most closely related to Reichenbachiella agariperforans JCM11238 (94.5 %), followed by Reichenbachiella faecimaris JCM 16588T (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 DC003T is considered to represent a novel species of the genus Reichenbachiella, for which the name Reichenbachiellaversicolor sp. nov. is proposed. The type strain is DC003T (=KCTC 42867T=MCCC 1H00130T).