title: Arenibacter gen. nov., new genus of the family flavobacteriaceae and description of a new species, Arenibacter latericius sp. nov.
abstract: Five dark-orange-pigmented, Gram-negative, rod-shaped, non-motile, aerobic bacterial strains were isolated from sandy sediment samples collected in the South China Sea in the Indian Ocean, from a holothurian, Apostichopus japonicus, in the Sea of Japan and from a brown alga, Chorda filum, from the Sea of Okhotsk in the Pacific Ocean. Phenotypic data were collected, demonstrating that the bacteria are chemo-organotrophic and require seawater-based media for growth. Polar lipids were analysed and 27% of the total extract comprised phosphatidylethanolamine as the major component. The predominant cellular fatty acids were branched-chain saturated and unsaturated [i-C15:0, i-C15:1, a-C15:0, C15:0, C16:1(n-7)]. The DNA base composition was 37.5-38.2 mol % G+C. The level of DNA homology of the five isolates was 83-94%, indicating that these isolates belong to the same species. A 16S rDNA sequence of the type strain KMM 426T was determined and phylogenetic analysis, based on neighbour-joining and Fitch-Margoliash methods, revealed that the type strain formed a distinct phyletic line in a clade corresponding to the family Flavobacteriaceae and represented a new genus. From the results of this polyphasic taxonomic analysis, it is proposed that the bacterial strains be classified in a new genus, Arenibacter gen. nov., and species, Arenibacter latericius sp. nov. The type strain is KMM 426T (VKM B 2137DT = LMG 19694T = CIP 106861T).
authors.forename: E P
authors.initials: EP
authors.lastname: Ivanova
authors.forename: O I
authors.initials: OI
authors.lastname: Nedashkovskaya
authors.forename: J
authors.initials: J
authors.lastname: Chun
authors.forename: A M
authors.initials: AM
authors.lastname: Lysenko
authors.forename: G M
authors.initials: GM
authors.lastname: Frolova
authors.forename: V I
authors.initials: VI
authors.lastname: Svetashev
authors.forename: M V
authors.initials: MV
authors.lastname: Vysotskii
authors.forename: V V
authors.initials: VV
authors.lastname: Mikhailov
authors.forename: A
authors.initials: A
authors.lastname: Huq
authors.forename: R R
authors.initials: RR
authors.lastname: Colwell
mesh_terms: D000818:Animals; D001482:Base Composition; D004275:DNA, Ribosomal / Q000235:genetics; D005227:Fatty Acids / Q000032:analysis; D019015:Geologic Sediments / Q000382:microbiology; D016946:Gram-Negative Aerobic Rods and Cocci / Q000145:classification* / Q000235:genetics* / Q000302:isolation & purification; D008969:Molecular Sequence Data; D000459:Phaeophyceae / Q000382:microbiology; D010641:Phenotype; D010802:Phylogeny; D010860:Pigments, Biological / Q000378:metabolism; D012336:RNA, Ribosomal, 16S; D012616:Sea Cucumbers / Q000382:microbiology; D012623:Seawater / Q000382:microbiology
chemical_list: D004275:DNA, Ribosomal; D005227:Fatty Acids; D010860:Pigments, Biological; D012336:RNA, Ribosomal, 16S