title: Altererythrobacter confluentis sp. nov., isolated from water of an estuary environment.
abstract: A Gram-stain-negative, aerobic, non-motile and ovoid or rod-shaped bacterial strain, designated KEM-4T, was isolated from water of an estuary environment on the Yellow Sea, South Korea, and subjected to a polyphasic taxonomic study. Strain KEM-4T grew optimally at pH 7.0-8.0, at 30 °C and in the presence of 1.0-2.0 % (w/v) NaCl. The phylogenetic trees based on 16S rRNA gene sequences showed that strain KEM-4T fell within the clade comprising the type strains of species of the genus Altererythrobacter, clustering with the type strains of Altererythrobacter aestiaquae, Altererythrobacter gangjinensis and Altererythrobacter luteolus, showing 95.0-96.5 % sequence similarity. Sequences similarities to the type strains of the other species of the genus Altererythrobacter were 93.1-95.1 %. Strain KEM-4T contained Q-10 as the predominant ubiquinone and C18 : 1ω7c, summed feature 3 (C16 : 1ω6c and/or C16 : 1ω7c) and C17 : 1ω6c as the major fatty acids. The major polar lipids were phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol and sphingoglycolipid. The DNA G+C content of strain KEM-4T was 59.5 mol%. Differential phenotypic properties, together with the phylogenetic distinctiveness, revealed that strain KEM-4T is separated from species of the genus Altererythrobacter with validly published names. On the basis of the data presented, strain KEM-4T is considered to represent a novel species of the genus Altererythrobacter, for which the name Altererythrobacter confluentissp. nov. is proposed. The type strain is KEM-4T (=KCTC 52259T=NBRC 112305T).
authors.affiliation: Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, Republic of Korea.
authors.forename: Sooyeon
authors.initials: S
authors.lastname: Park
authors.affiliation: Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, Republic of Korea.|University of Science and Technology (UST), 113 Gwahangno, Yuseong, Daejeon, Republic of Korea.
authors.forename: Yong-Taek
authors.initials: YT
authors.lastname: Jung
authors.affiliation: Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, Republic of Korea.
authors.forename: Ji-Min
authors.initials: JM
authors.lastname: Park
authors.affiliation: Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, Republic of Korea.
authors.forename: Jung-Hoon
authors.initials: JH
authors.lastname: Yoon
mesh_terms: D020561:Alphaproteobacteria / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D015373:Bacterial Typing Techniques; D001482:Base Composition; D004269:DNA, Bacterial / Q000235:genetics; D063366:Estuaries; D005227:Fatty Acids / Q000737:chemistry; D009693:Nucleic Acid Hybridization; D010743:Phospholipids / Q000737:chemistry; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D056910:Republic of Korea; D012623:Seawater / Q000382:microbiology*; D017422:Sequence Analysis, DNA; D014451:Ubiquinone / Q000031:analogs & derivatives / Q000737:chemistry
chemical_list: D004269:DNA, Bacterial; D005227:Fatty Acids; D010743:Phospholipids; D012336:RNA, Ribosomal, 16S; D014451:Ubiquinone; C024989:coenzyme Q10