Erythrobacter nanhaiensis sp. nov., A Novel Member of the Genus Erythrobacter Isolated from the South China Sea
A Gram-negative, motile, rod-shaped, aerobic bacterial strain with tufty polar flagella, JLT1363T, was isolated from the South China Sea. The bacteria formed yellow colonies on rich organic medium. The major cellular fatty acids present in JLT1363T were C18:1 ω7c and/or C18:1 ω6c (36.06%), C17:1 ω6c (17.04%), C14:0 2-OH (9.85%), and C16:0 (8.09%). The genome size was ~3.12 Mbps with a G+C content of 64.9%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain JLT1363T fell within the genus Erythrobacter. The 16S rRNA gene sequence similarity between strain JLT1363T and the type strains of Erythrobacter species ranged from 95.0% (with Erythromicrobium ramosum) to 98.7% (with Erythrobacter lutimaris). The Average Nucleotide Identity (ANI) value between genome sequences of strain JLT1363T and Erythrobacter lutimaris KCTC 42109T was 82.2%. Strain JLT1363T lacked bacteriochlorophyll a, and the major polar lipids were sphingoglycolipids, diphosphatidylglycerol, phosphatidylcholine, and phosphatidylglycerol. Phylogenetic and phenotypic properties indicated that strain JLT1363T represents a novel species of the genus Erythrobacter, for which the name Erythrobacter nanhaiensis sp. nov. is proposed. The type strain is JLT1363T (=CGMCC 1.7293T = LMG 24872T).
This work was funded by the NSFC project (41606134), National Key Research and Development Program of China (2016YFA0601103), and the Fundamental Research Funds of Shandong University as well. Special thanks are given to Dr. Richard Allen White III, Fundamental and Computational Sciences Directorate at Pacific Northwest National Laboratory for polishing the English in this manuscript.
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