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Abstract
Strain Eup a-2T, isolated from the torch coral Euphyllia glabrescens, was characterized using a polyphasic taxonomy approach. Cells of strain Eup a-2T were Gram-negative, aerobic and motile by three polar flagella and formed translucent colonies. Optimal growth occurred at 25 °C, pH 6–8 and in the presence of 2–4 % NaCl. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain Eup a-2T belonged to the genus Litoribrevibacter and showed the highest levels of sequence similarity with respect to Litoribrevibacter albus Y32T (97.8 %). Strain Eup a-2T contained summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c) and C16 : 0 as the predominant fatty acids. The predominant isoprenoid quinone was Q-8. The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol and diphophatidylglycerol. Genomic DNA G+C content of strain Eup a-2T was 49.1 mol%. The DNA–DNA hybridization value for strain Eup a-2T with L. albus Y32T was less than 30 %. Differential phenotypic properties, together with the phylogenetic inference, demonstrate that strain Eup a-2T should be classified as a novel species of the genus Litoribrevibacter , for which the name Litoribrevibacter euphylliae sp. nov. is presented. The type strain is Eup a-2T (=BCRC 81004T=LMG 29725T=KCTC 52438T).
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