title: Aquimarina megaterium sp. nov., isolated from seawater.
abstract: A novel Gram-stain-negative, rod-shaped, non-flagellated, strictly aerobic strain with gliding motility, designated XH134(T), was isolated from surface seawater of the South Pacific Gyre (45° 58' S 163° 11' W) during the Integrated Ocean Drilling Program Expedition 329. The major respiratory quinone of strain XH134(T) was MK-6. The dominant fatty acids of strain XH134(T) were iso-C15 : 0, iso-C15 : 1 G, C16 : 1ω6c and/or C16 : 1ω7c, iso-C17 : 0 3-OH, iso-C15 : 0 3-OH and 10-methyl C16 : 0 and/or iso-C17 : 1ω9c. The polar lipids of strain XH134(T) comprised phosphatidylethanolamine, one unknown aminolipid and three unknown polar lipids. The DNA G+C content of strain XH134(T) was 32.4 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that the novel strain was related most closely to Aquimarina macrocephali JAMB N27(T) with 96.9 % sequence similarity. A number of phenotypic characteristics distinguished strain XH134(T) from described members of the genus Aquimarina. On the basis of combined phenotypic and phylogenetic analyses, strain XH134(T) represents a novel species of the genus Aquimarina, for which the name Aquimarina megaterium sp. nov. is proposed. The type strain is XH134(T) ( = CGMCC 1.12186(T) = JCM 18215(T)).
authors.affiliation: College of Marine Life Sciences, Ocean University of China, Qingdao, China.
authors.forename: Tong
authors.initials: T
authors.lastname: Yu
authors.affiliation: College of Marine Life Sciences, Ocean University of China, Qingdao, China.
authors.forename: Zenghu
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: College of Marine Life Sciences, Ocean University of China, Qingdao, China.
authors.forename: Xiaoyang
authors.initials: X
authors.lastname: Fan
authors.affiliation: College of Marine Life Sciences, Ocean University of China, Qingdao, China.
authors.forename: Xiaochong
authors.initials: X
authors.lastname: Shi
authors.affiliation: College of Marine Life Sciences, Ocean University of China, Qingdao, China.
authors.forename: Xiao-Hua
authors.initials: XH
authors.lastname: Zhang
mesh_terms: D015373:Bacterial Typing Techniques; D001482:Base Composition; D004269:DNA, Bacterial / Q000235:genetics; D005227:Fatty Acids / Q000737:chemistry; D041965:Flavobacteriaceae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D008969:Molecular Sequence Data; D010140:Pacific Ocean; D010714:Phosphatidylethanolamines / Q000737:chemistry; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012623:Seawater / Q000382:microbiology*; D017422:Sequence Analysis, DNA; D024482:Vitamin K 2 / Q000031:analogs & derivatives / Q000737:chemistry
chemical_list: D004269:DNA, Bacterial; D005227:Fatty Acids; D010714:Phosphatidylethanolamines; D012336:RNA, Ribosomal, 16S; D024482:Vitamin K 2; C483858:phosphatidylethanolamine; C042455:menaquinone 6