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Current Microbiology

, Volume 75, Issue 9, pp 1126–1132 | Cite as

Dokdonia ponticola sp. nov., A Carrageenan-Degrading Bacterium of the Family Flavobacteriaceae Isolated from Seawater

  • Sooyeon Park
  • Sung-Min Won
  • Jung-Hoon YoonEmail author
Article
  • 126 Downloads

Abstract

A Gram-stain-negative, aerobic, non-motile, and carrageenan-degrading bacterial strain, designated OISW-17T, was isolated from seawater around Oido, an island of South Korea, and its taxonomic position was determined using a polyphasic study. Optimal growth of the novel strain occurred at 20–25 °C and in the presence of 2.0% (w/v) NaCl. Phylogenetic trees using 16S rRNA gene sequences showed that strain OISW-17T forms a cluster with the type strains of Dokdonia species. The novel strain exhibited 16S rRNA gene sequence similarities of 95.7–96.3% to the type strains of Dokdonia species and of < 93.4% to the type strains of the other recognized species. Menaquinone-6 (MK-6) was found as the predominant menaquinone and iso-C15:0, iso-C15:1 G, and iso-C17:0 3-OH were the major fatty acids. Phosphatidylethanolamine, one unidentified lipid, and one unidentified aminolipid were major polar lipids detected in strain OISW-17T. Strain OISW-17T had DNA G+C content of 39.7 mol%. The differential phenotypic characteristics, along with the phylogenetic data, made strain OISW-17T to be distinct from recognized species of the genus Dokdonia. On the basis of the data given, strain OISW-17T represents a novel species of the genus Dokdonia, for which the name Dokdonia ponticola sp. nov. is proposed. The type strain of the novel species is OISW-17T (= KACC 19437T = KCTC 62187T = CGMCC 1.16527T).

Notes

Acknowledgements

This work was supported by the project on survey of indigenous species of Korea of the National Institute of Biological Resources (NIBR) under the Ministry of Environment (MOE) and “Cooperative Research Program for Agriculture Science and Technology Development (Project No. PJ012956)” of Rural Development Administration, the Republic of Korea.

Compliance with Ethical Standards

Conflict of interest

Authors declare that they have no conflict of interest.

Research Involving Human and Animal Participants

This article does not contain any studies with human participants or animals performed by any of the authors.

Supplementary material

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Supplementary material 1 (PPT 307 KB)

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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Food Science and BiotechnologySungkyunkwan UniversitySuwonSouth Korea

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