title: Yangia pacifica gen. nov., sp. nov., a novel member of the Roseobacter clade from coastal sediment of the East China Sea.
abstract: An aerobic, Gram-negative bacterial isolate, strain DX5-10T, was isolated from coastal sediment of the East China Sea. The taxonomy of strain DX5-10T was studied by phenotypic and phylogenetic methods. Strain DX5-10T was motile, formed faint-yellowish colonies and was positive for catalase reaction and weakly positive for oxidase reaction. The nearly complete 16S rRNA gene of strain DX5-10T was obtained and sequence analysis indicated that strain DX5-10T represented an independent lineage within the Roseobacter clade of Alphaproteobacteria. Strain DX5-10T was phylogenetically related to members of the genera Roseobacter, Loktanella, Roseisalinus, Silicibacter, Antarctobacter, Sulfitobacter, Salipiger, Ruegeria and Roseivivax, and the sequence identities among them were less than 95.0%. The predominant respiratory ubiquinone of strain DX5-10T was Q-10 and the DNA G + C content of strain DX5-10T was 63.3 mol%. Therefore, strain DX5-10T represents a novel species of a novel genus, for which the name Yangia pacifica gen. nov., sp. nov. is proposed, with the type strain DX5-10T (= CGMCC 1.3455T = JCM 12573T).
authors.affiliation: State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Zhong-Guan-Cun, Haidian, Beijing 100080, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Dai
authors.affiliation: State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Zhong-Guan-Cun, Haidian, Beijing 100080, China.
authors.forename: Bao-Jun
authors.initials: BJ
authors.lastname: Wang
authors.affiliation: State Key Laboratory for Marine Environmental Sciences, Xiamen University, Xiamen, 361005, China.
authors.forename: Qing-Xiang
authors.initials: QX
authors.lastname: Yang
authors.affiliation: State Key Laboratory for Marine Environmental Sciences, Xiamen University, Xiamen, 361005, China.
authors.forename: Nian-Zhi
authors.initials: NZ
authors.lastname: Jiao
authors.affiliation: State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Zhong-Guan-Cun, Haidian, Beijing 100080, China.
authors.forename: Shuang-Jiang
authors.initials: SJ
authors.lastname: Liu
mesh_terms: D025541:Bacteriochlorophyll A / Q000032:analysis; D004275:DNA, Ribosomal / Q000737:chemistry; D019015:Geologic Sediments / Q000382:microbiology*; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D041904:Roseobacter / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification / Q000502:physiology
chemical_list: D025541:Bacteriochlorophyll A; D004275:DNA, Ribosomal; D012336:RNA, Ribosomal, 16S