title: Altererythrobacter aestiaquae sp. nov., isolated from seawater.
abstract: A Gram-stain-negative, coccoid- or oval-shaped, gliding bacterial strain, designated HDW-31(T), belonging to the class Alphaproteobacteria, was isolated from seawater of the Yellow Sea, Korea, and was subjected to a taxonomic study using a polyphasic approach. Strain HDW-31(T) grew optimally at pH 7.0-8.0, at 30 °C and in the presence of 2-3 % (w/v) NaCl. Neighbour-joining, maximum-likelihood and maximum-parsimony phylogenetic trees based on 16S rRNA gene sequences showed that strain HDW-31(T) fell within the clade comprising the genus Altererythrobacter, clustering with the type strains of Altererythrobacter luteolus and Altererythrobacter gangjinensis, with which strain HDW-31(T) exhibited 97.0 and 96.0 % sequence similarity values, respectively. Sequence similarities to the type strains of the other recognized species of the genus Altererythrobacter were 93.5-96.0 %. The DNA G+C content was 57.9 mol% and mean DNA-DNA relatedness between strain HDW-31(T) and the type strain of A. luteolus was 5.3 %. Strain HDW-31(T) contained Q-10 as the predominant ubiquinone and summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c), summed feature 3 (C16 : 1ω6c and/or C16 : 1ω7c) and C16 : 0 as the major fatty acids. The major polar lipids were phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine, a sphingoglycolipid, two unidentified glycolipids and an unidentified lipid. Differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, demonstrated that strain HDW-31(T) is distinguishable from recognized species of the genus Altererythrobacter. On the basis of the data presented, strain HDW-31(T) is considered to represent a novel species of the genus Altererythrobacter, for which the name Altererythrobacter aestiaquae sp. nov. is proposed. The type strain is HDW-31(T) ( = KCTC 42006(T) = CECT 8527(T)).
authors.affiliation: University of Science and Technology (UST), 113 Gwahangno, Yuseong, Daejeon, Republic of Korea.|Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, 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: Sooyeon
authors.initials: S
authors.lastname: Park
authors.affiliation: Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Republic of Korea.
authors.forename: Jung-Sook
authors.initials: JS
authors.lastname: Lee
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; D005227:Fatty Acids / Q000737:chemistry; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D056910:Republic of Korea; D012623:Seawater / Q000382:microbiology*; D017422:Sequence Analysis, DNA; D014451:Ubiquinone / Q000737:chemistry
chemical_list: D004269:DNA, Bacterial; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S; D014451:Ubiquinone; C025204:Ubiquinone Q2