RT Journal Article SR Electronic(1) A1 Lyu, Lina A1 Lai, Qiliang A1 Li, Jianyang A1 Yu, Zhiqiang A1 Shao, ZongzeYR 2021 T1 Paracoccus amoyensis sp. nov., isolated from the surface seawater along the coast of Xiamen Island, China JF International Journal of Systematic and Evolutionary Microbiology, VO 71 IS 3 OP SP 004685 DO https://doi.org/10.1099/ijsem.0.004685 PB Microbiology Society, SN 1466-5034, AB Strain 11-3T 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 11-3T 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 11-3T belonged to the genus Paracoccus and had the highest similarity with Paracoccus caeni MJ17T (98.1 %), followed by Paracoccus xiamenensis 12-3T (97.1 %), Paracoccus zeaxanthinifaciens ATCC 21588T (97.1 %), Paracoccus aestuarii DSM 19484T (97.0 %), Paracoccus liaowanqingii 2251T (97.0 %), Paracoccus fistulariae KCTC 22803T (97.0 %) and other species of the genus Paracoccus (95.2–96.8 %). The DNA-DNA hybridization values between strain 11-3T and the selected strains ( P. caeni MJ17T, P. xiamenensis 12-3T, P. zeaxanthinifaciens ATCC 21588T, P. aestuarii DSM 19484T and P. liaowanqingii 2251T) 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 (C18:1 ω6c/ω7c). 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 11-3T was 60.1 %. Based on results of the phylogenetic analysis, phenotypic and chemotaxonomic characteristics, strain 11-3T represents a novel species of the genus Paracoccus , for which the name Paracoccus amoyensis sp. nov. is proposed. The type strain is 11-3T (=MCCC 1A16380T=KCTC 72689T)., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.004685