title: Roseovarius atlanticussp. nov., isolated from surface seawater.
abstract: A taxonomic study was carried out on strain R12BT, which was isolated from surface seawater of the Atlantic Ocean. The bacterium was observed to be rod-shaped, Gram-stain-negative, oxidase-positive and weakly positive for catalase. Growth was observed at salinities of 0.5-15 % and at temperatures of 4-45 °C. The isolate was incapable of nitrate reduction and hydrolysis of gelatin, Tween 80 and aesculin. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain R12BTbelonged to the genusRoseovarius, with highest sequence similarity toRoseovarius indicusB108T(97.2 % 16S rRNA gene sequence similarity), followed byRoseovarius halotoleransHJ50T(96.8 %); other species of genusRoseovariusshared 93.0-96.2 % sequence similarities. The DNA-DNA hybridization estimate value between strain R12BTandR. indicusB108Twas 23.2 ± 2.4 %. The average nucleotide identity between strain R12BTandR. indicusB108Twas 77.1 %. The principal fatty acids were summed feature 8 (C18 : 1ω7c/ω6c) and C16 : 0. The G+C content of the chromosomal DNA was 63.6 mol%. The respiratory quinone was determined to be Q-10. Diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine, two aminolipids, two phospholipids and some unidentified lipids were present. The combined genotypic and phenotypic data show that strain R12BTrepresents a novel species of the genusRoseovarius, for which the nameRoseovarius atlanticussp. nov. is proposed, with the type strain R12BT( = MCCC 1A09786T= KCTC 42506T).
authors.affiliation: School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China.|State Key Laboratory Breeding Base of Marine Genetic Resources; Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, SOA; Key Laboratory of Marine Genetic Resources of Fujian Province, Xiamen 361005, PR China.
authors.forename: Guizhen
authors.initials: G
authors.lastname: Li
authors.affiliation: State Key Laboratory Breeding Base of Marine Genetic Resources; Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, SOA; Key Laboratory of Marine Genetic Resources of Fujian Province, Xiamen 361005, PR China.
authors.forename: Qiliang
authors.initials: Q
authors.lastname: Lai
authors.affiliation: State Key Laboratory Breeding Base of Marine Genetic Resources; Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, SOA; Key Laboratory of Marine Genetic Resources of Fujian Province, Xiamen 361005, PR China.
authors.forename: Chunming
authors.initials: C
authors.lastname: Dong
authors.affiliation: School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China.
authors.forename: Rui
authors.initials: R
authors.lastname: Ma
authors.affiliation: State Key Laboratory Breeding Base of Marine Genetic Resources; Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, SOA; Key Laboratory of Marine Genetic Resources of Fujian Province, Xiamen 361005, PR China.
authors.forename: Yaping
authors.initials: Y
authors.lastname: Du
authors.affiliation: State Key Laboratory Breeding Base of Marine Genetic Resources; Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, SOA; Key Laboratory of Marine Genetic Resources of Fujian Province, Xiamen 361005, PR China.
authors.forename: Xiupian
authors.initials: X
authors.lastname: Liu
authors.affiliation: State Key Laboratory Breeding Base of Marine Genetic Resources; Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, SOA; Key Laboratory of Marine Genetic Resources of Fujian Province, Xiamen 361005, PR China.
authors.forename: Fengqin
authors.initials: F
authors.lastname: Sun
authors.affiliation: State Key Laboratory Breeding Base of Marine Genetic Resources; Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, SOA; Key Laboratory of Marine Genetic Resources of Fujian Province, Xiamen 361005, PR China.|School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China.
authors.forename: Zongze
authors.initials: Z
authors.lastname: Shao
authors.affiliation: School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai 264209, PR China.|School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China.
authors.forename: Peisheng
authors.initials: P
authors.lastname: Yan