sp. nov., isolated from the surface seawater along the coast of Xiamen Island, China.

Strain 11-3 was isolated from the surface seawater along the coast of Xiamen Island, China. Cells were Gram-stain-negative, oxidase- and catalase-positive, short and rod-shaped, nonmotile, 0.5-1.0 μm in width and 1.0-2.0 μm in length. Growth of strain 11-3 was at temperature of 15-37°C (optimum 28-35°C), at pH of 5.0-11.0 (optimum 7.0-9.0) and at salinity range of 0-10 (optimum 0.5-1). Phylogenetic analysis based on the 16S rRNA gene sequence indicated that strain 11-3 belonged to the genus and had the highest similarity with MJ17 (98.1 %), followed by 12-3 (97.1 %), ATCC 21588 (97.1 %), DSM 19484 (97.0 %), 2251 (97.0 %), KCTC 22803 (97.0 %) and other species of the genus (95.2-96.8 %). The DNA-DNA hybridization values between strain 11-3 and the selected strains ( MJ17, 12-3, ATCC 21588, DSM 19484 and 2251) were 19.4, 19.5, 21.6, 19.3 and 19.8 %, respectively. Corresponding, their ANI values were 77.53, 75.61, 75.36, 75.73 and 75.33 %, respectively. The major fatty acid was summed feature 8 (C 6/7). The major respiratory quinone was Q10. The polar lipids included phosphatidylcholine (PC), phosphatidylethanolamine (PE), phosphatidylglycerol (PG), diphosphatidylglycerol (DPG), unidentified glycolipid (GL) and unidentified aminolipid (AL). The DNA G+C content of strain 11-3 was 60.1 %. Based on results of the phylogenetic analysis, phenotypic and chemotaxonomic characteristics, strain 11-3 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is 11-3 (=MCCC 1A16380=KCTC 72689).