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- Title
Polaribacter marinivivus sp. nov., a member of the family Flavobacteriaceae isolated from seawater.
- Authors
Park, Sooyeon; Park, Ji-Min; Jung, Yong-Taek; Lee, Keun-Chul; Lee, Jung-Sook; Yoon, Jung-Hoon
- Abstract
A Gram-stain negative, non-flagellated, non-gliding, aerobic and rod-shaped bacterium, designated GYSW-15, was isolated from a seawater of Geoje island on the South Sea, South Korea, and subjected to a polyphasic taxonomic approach. Strain GYSW-15 was found to grow optimally at 30 °C, at pH 7.0-8.0 and in the presence of approximately 2.0 % (w/v) NaCl. Neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain GYSW-15 belongs to the genus Polaribacter, clustering coherently with the type strain of Polaribacter porphyrae showing sequence similarity value of 97.0 %. Strain GYSW-15 exhibited 16S rRNA gene sequence similarity values of 94.3-96.4 % to the type strains of the other Polaribacter species. Strain GYSW-15 was found to contain MK-6 as the predominant menaquinone and iso-C, iso-C G, iso-C 3-OH and summed feature 3 (C ω7 c and/or C ω6 c) as the major fatty acids. The polar lipid profile of strain GYSW-15 containing phosphatidylethanolamine and an unidentified lipid as major components was similar to that of the type strain of P. porphyrae. The DNA G + C content of strain GYSW-15 was determined to be 31.2 mol% and its mean DNA-DNA relatedness with P. porphyrae LMG 26671 was 17 %. Differential phenotypic properties, together with its phylogenetic and genetic distinctiveness, revealed that strain GYSW-15 is separated from recognized Polaribacter species. On the basis of the data presented, strain GYSW-15 is considered to represent a novel species of the genus Polaribacter, for which the name Polaribacter marinivivus sp. nov. is proposed. The type strain is GYSW-15 ( = KCTC 42156 = CECT 8655)
- Subjects
BACTERIA; PHOSPHATIDYLETHANOLAMINES; LIPIDS; VITAMIN K2; RIBOSOMAL RNA
- Publication
Antonie van Leeuwenhoek, 2014, Vol 106, Issue 6, p1139
- ISSN
0003-6072
- Publication type
Article
- DOI
10.1007/s10482-014-0283-4