Journal
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
Volume 65, Issue -, Pages 1679-1685Publisher
SOC GENERAL MICROBIOLOGY
DOI: 10.1099/ijs.0.000157
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Funding
- project on survey of indigenous species of Korea of the National Institute of Biological Resources (NIBR) under the Ministry of Environment (MOE)
- Program for Collection, Management and Utilization of Biological Resources from the Ministry of Science, ICT & Future Planning (MSIP) of the Republic of Korea [NRF-2013M3A9A5075953]
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A Gram-stain-negative, non-flagellated, non-gliding, aerobic and rod-shaped or ovoid bacterial strain, designated W-BA7(T), was isolated from a brown alga reservoir on the South Sea in South Korea. This strain grew optimally at 25 degrees C, at pH 7.0-8.0 and in the presence of approximately 2.0% (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain W-BA7(T) belonged to the genus Polaribacter, clustering coherently with the type strain of Polaribacter sejongensis, showing 99.3% sequence similarity. Strain W-BA7(T) exhibited 168 rRNA gene sequence similarity of 93.4-98.6% to the type strains of the other species of the genus Polaribacter. Strain W-BA7(T) contained MK-6 as the predominant menaquinone and iso-C-15:0 3-OH and anteiso-C-15:0 as the major fatty acids. The major polar lipids of strain W-BA7(T) were phosphatidylethanolamine, three unidentified lipids, one unidentified glycolipid, one unidentified aminolipid and one unidentified aminophospholipid. The DNA G+C content of strain W-BA7(T) was 31.9 mol%, and the mean DNA DNA relatedness with the type strains of four phylogenetically related species of the genus Polaribacter was 12-27 %. Differential phenotypic properties, together with its phylogenetic and genetic distinctiveness, revealed that strain W-BA7(T) is separated from recognized species of the genus Polaribacter. On the basis of the data presented, strain W-BA7(T) is considered to represent a novel species of the genus Polaribacter, for which the name Polaribacter undariae sp. nov. is proposed. The type strain is W-BA7(T) (=KCTC 42175(T)=CECT 8670(T)).
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