title: Rubrivirga profundi sp. nov., isolated from deep-sea water, and emended description of the genus Rubrivirga.
abstract: A Gram-staining-negative, rod-shaped, facultatively anaerobic, non-motile and pale-red-pigmented bacterium, designated SAORIC-476T, was isolated from deep-sea water from the Pacific Ocean. 16S rRNA gene sequence analyses showed that strain SAORIC-476T was most closely related to Rubrivirga marinaSAORIC-28T (96.8 % similarity) and formed a robust phylogenetic clade with Rubrivirga marinaof the family Rhodothermaceae. Optimal growth of strain SAORIC-476T was observed at 25 °C, pH 7.5 and in the presence of 3.0 % (w/v) NaCl. The DNA G+C content of strain SAORIC-476T was 66.2 mol%, and the sole isoprenoid quinone was MK-7. The predominant cellular fatty acids were summed feature 9 (iso-C17 : 1ω9c and/or 10-methyl C16 : 0), iso-C17 : 0, C17 : 1ω8c and iso-C15 : 0. The major polar lipids constituted phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, three unknown phospholipids and four unknown polar lipids. On the basis of taxonomic data obtained in this study, it was concluded that strain SAORIC-476T represents a novel species of the genus Rubrivirga, for which the name Rubrivirga profundi sp. nov. is proposed. The type strain of Rubrivirga profundi is SAORIC-476T (=NBRC 110607T=KACC 18401T).
authors.affiliation: Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan.
authors.forename: Jaeho
authors.initials: J
authors.lastname: Song
authors.affiliation: Department of Biological Science, Inha University, Incheon 402-751, Republic of Korea.
authors.forename: Yochan
authors.initials: Y
authors.lastname: Joung
authors.affiliation: Tropical Biosphere Research Center COMB, University of the Ryukyus, 1 Nishihara, Okinawa 903-0213, Japan.
authors.forename: Sanghwa
authors.initials: S
authors.lastname: Park
authors.affiliation: Department of Biological Science, Inha University, Incheon 402-751, Republic of Korea.
authors.forename: Jang-Cheon
authors.initials: JC
authors.lastname: Cho
authors.affiliation: Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan.
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Kogure
mesh_terms: D015373:Bacterial Typing Techniques; D041963:Bacteroidetes / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D001482:Base Composition; D004269:DNA, Bacterial / Q000235:genetics; D005227:Fatty Acids / Q000737:chemistry; D010140:Pacific Ocean; D010715:Phosphatidylglycerols / Q000737:chemistry; D010743:Phospholipids / 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
chemical_list: D004269:DNA, Bacterial; D005227:Fatty Acids; D010715:Phosphatidylglycerols; D010743:Phospholipids; D012336:RNA, Ribosomal, 16S; D024482:Vitamin K 2; C062629:menaquinone 7