title: Gaetbulibacter aquiaggerissp. nov., a member of theFlavobacteriaceaeisolated from seawater.
abstract: A Gram-stain-negative, non-flagellated, non-gliding and rod-shaped bacterial strain, designated KEM-8T, was isolated from seawater in the Korean peninsula. Strain KEM-8Twas found to grow optimally at pH 7.0-8.0, at 30 °C and in the presence of 2-3 % (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain KEM-8Tfalls within the clade comprising species of the genusGaetbulibacter, clustering with the type strains ofGaetbulibacter marinusandGaetbulibacter lutimariswith which it exhibits 98.4 and 97.2 % 16S rRNA gene sequence similarity, respectively. Sequence similarities toGaetbulibacter saemankumensisSMK-12TandGaetbulibacter aestuariiKCTC 23303Twere 95.4 and 95.2 %, respectively. Strain KEM-8Twas found to contain MK-6 as the predominant menaquinone and iso-C15 : 0, iso-C17 : 03-OH, iso-C16 : 03-OH and iso-C15 : 1G as the major fatty acids. The major polar lipids were identified as phosphatidylethanolamine and an unidentified lipid. The DNA G+C content of strain KEM-8Twas 36.0 mol% and mean DNA-DNA relatedness values withG. marinusKCTC 23046TandG. lutimarisD1-y4Twere 27.6 ± 0.9 and 10.3 ± 1.4 %, respectively. Differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain KEM-8Tis distinguishable from species of the genusGaetbulibacterwith validly published names. On the basis of the data presented, strain KEM-8Trepresents a novel species of the genusGaetbulibacter, for which the nameGaetbulibacter aquiaggerissp. nov. is proposed. The type strain is KEM-8T( = KCTC 42198T= NBRC 110553T).
authors.affiliation: Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, South Korea.|University of Science and Technology (UST), 113 Gwahak-ro, Yuseong-gu, Daejeon, South Korea.
authors.forename: Yong-Taek
authors.initials: YT
authors.lastname: Jung
authors.affiliation: Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, South Korea.
authors.forename: Jung-Sook
authors.initials: JS
authors.lastname: Lee
authors.affiliation: Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, South Korea.
authors.forename: Jung-Hoon
authors.initials: JH
authors.lastname: Yoon