title: Pseudorhodobacter aquimaris sp. nov., isolated from seawater, and emended description of the genus Pseudorhodobacter Uchino et al. 2002.
abstract: A Gram-stain-negative, aerobic, motile, ovoid bacterial strain, designated HDW-19(T), was isolated from seawater of the west coast of Korea and subjected to a polyphasic taxonomic study. Strain HDW-19(T) grew optimally at pH 7.0-8.0, at 30 °C and in the presence of 2-3% (w/v) NaCl. Bacteriochlorophyll a was not produced by strain HDW-19(T). Neighbour-joining, maximum-likelihood and maximum-parsimony phylogenetic trees based on 16S rRNA gene sequences showed that strain HDW-19(T) clustered with Pseudorhodobacter ferrugineus IAM 12616(T), with which it shared 96.4% similarity. A neighbour-joining phylogenetic tree based on gyrB gene sequences showed that strain HDW-19(T) also clustered with the type strain of P. ferrugineus, sharing 83.0% similarity. Strain HDW-19(T) contained Q-10 as the predominant ubiquinone and C(18:1)ω7c as the major fatty acid. The major polar lipids were phosphatidylcholine, phosphatidylglycerol, three unidentified aminophospholipids and two unidentified aminolipids. The DNA G+C content of strain HDW-19(T) was 60.9 mol%. Differential phenotypic properties, together with phylogenetic distinctiveness, showed that strain HDW-19(T) can be differentiated from P. ferrugineus. On this basis, strain HDW-19(T) is considered to represent a novel species of the genus Pseudorhodobacter, for which the name Pseudorhodobacter aquimaris sp. nov. is proposed. The type strain is HDW-19(T) (=KCTC 23043(T) =CCUG 58879(T)).
authors.affiliation: University of Science and Technology (UST), 113 Gwahangno, Yuseong, Daejeon, Republic of Korea.|Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yuseong, Daejeon, Republic of Korea.
authors.forename: Yong-Taek
authors.initials: YT
authors.lastname: Jung
authors.affiliation: Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yuseong, Daejeon, Republic of Korea.
authors.forename: Ki-Hoon
authors.initials: KH
authors.lastname: Oh
authors.affiliation: Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yuseong, Daejeon, Republic of Korea.
authors.forename: Tae-Kwang
authors.initials: TK
authors.lastname: Oh
authors.affiliation: Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, Republic of Korea.|Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yuseong, Daejeon, Republic of Korea.
authors.forename: Jung-Hoon
authors.initials: JH
authors.lastname: Yoon
mesh_terms: D000332:Aerobiosis; D015373:Bacterial Typing Techniques; D025541:Bacteriochlorophyll A / Q000032:analysis; D001482:Base Composition; D016000:Cluster Analysis; D027081:DNA Gyrase / Q000235:genetics; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D005227:Fatty Acids / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D008124:Locomotion; D008969:Molecular Sequence Data; D010743:Phospholipids / Q000032:analysis; D010802:Phylogeny; D011809:Quinones / Q000032:analysis; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D056910:Republic of Korea; D041902:Rhodobacteraceae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000502:physiology; D012623:Seawater / Q000382:microbiology*; D017422:Sequence Analysis, DNA; D012965:Sodium Chloride / Q000378:metabolism; D013696:Temperature
chemical_list: D025541:Bacteriochlorophyll A; D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D010743:Phospholipids; D011809:Quinones; D012336:RNA, Ribosomal, 16S; D012965:Sodium Chloride; D027081:DNA Gyrase