title: Seohaeicola westpacificensis sp. nov., a novel member of genera Seohaeicola isolated from deep West Pacific Sea water.
abstract: Strain JL2247(T), an aerobic, Gram-negative, gliding motile bacterium, was isolated from the western Pacific at the depth of 2,000 m. The cell was spindle-shaped with two narrow poles, and flagella were not observed. The colony was circular, translucent, and milky. This strain showed catalase-positive and oxidase-negative reactions. Its optimal growth conditions were at 32 °C, pH 7.3, and 3 % NaCl. The predominant polar lipids were phosphatidylcholine, diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, and phosphatidylmonomethylethanolamine. The major fatty acids were summed feature 8 (18:1 w7c and/or 18:1 w6c) and Cyclo C19:0 ω8c and the major respiratory quinone was Q-10. The DNA G+C content of strain JL2247(T) was 72.6 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain JL2247(T) fell into the genus Seohaeicola, family Rhodobacteraceae, order Rhodobacterales, class Alphaproteobacteria, sharing the highest similarity with the only species Seohaeicola saemankumensis SD-15(T) (96.4 % similarity). From the phenotypic, genotypic, and chemotaxonomic data, strain JL2247(T) represents a novel species of the genus Seohaeicola and the name is proposed as Seohaeicola westpacificensis sp. nov. The type strain is JL2247(T) (=CGMCC 1.12198(T) = JCM18883).
authors.affiliation: State Key Laboratory for Marine Environmental Science, Institute of Marine Microbes and Ecospheres, Xiamen University, Xiamen, 361005, People's Republic of China, 31120111151345@stu.xmu.edu.cn.
authors.forename: Shuhui
authors.initials: S
authors.lastname: Xian
authors.forename: Rui
authors.initials: R
authors.lastname: Zhang
authors.forename: Jia
authors.initials: J
authors.lastname: Sun
authors.forename: Yi
authors.initials: Y
authors.lastname: Chen
authors.forename: Wenchao
authors.initials: W
authors.lastname: Deng
authors.forename: Shuhui
authors.initials: S
authors.lastname: Li
authors.forename: Nianzhi
authors.initials: N
authors.lastname: Jiao
mesh_terms: D015373:Bacterial Typing Techniques; D001482:Base Composition; D001483:Base Sequence; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D008969:Molecular Sequence Data; D010140:Pacific Ocean; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D041902:Rhodobacteraceae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification / Q000502:physiology; D012623:Seawater / Q000382:microbiology; D017422:Sequence Analysis, DNA
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D012336:RNA, Ribosomal, 16S