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Int J Syst Evol Microbiol. 2018 May;68(5):1467-1473. doi: 10.1099/ijsem.0.002691. Epub 2018 Mar 9.

Pseudobizionia ponticola gen. nov., sp. nov., isolated from seawater.

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Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, Republic of Korea.


A Gram-stain-negative, aerobic, non-motile and ovoid or rod-shaped bacterial strain, designated MM-14T, was isolated from seawater sampled from the Yellow Sea in the Republic of Korea and its taxonomic position was investigated using a polyphasic approach. Strain MM-14T grew optimally at 30 °C and in the presence of approximately 2.0 % (w/v) NaCl. Phylogenetic trees based on 16S rRNA gene sequences showed that strain MM-14T clustered with the type strain of Hanstruepera neustonica. The novel strain exhibited a 16S rRNA gene sequence similarity value of 96.06 % to the type strain of H. neustonica, but higher 16S rRNA gene sequence similarity values (96.13-96.69 %) to the type strains of Bizionia echini, Bizionia hallyeonensis and Bizionia psychrotolerans. Strain MM-14T contained MK-6 as the predominant menaquinone and iso-C15 : 0, iso-C15 : 1 G and iso-C17 : 0 3-OH as the major fatty acids. The major polar lipids were phosphatidylethanolamine, one unidentified lipid and one unidentified aminolipid. The DNA G+C content of strain MM-14T was 34.6 mol%. The phylogenetic and chemotaxonomic data and other phenotypic properties revealed that strain MM-14T constitutes a new genus and species within the family Flavobacteriaceae of the phylum Bacteroidetes, for which the name Pseudobizionia ponticola gen. nov., sp. nov. is proposed. The type strain of Pseudobizionia ponticola is MM-14T (=KACC 19434T=KCTC 62139T=NBRC 113019T).


Pseudobizionia ponticola; novel genus; novel species; polyphasic taxonomy; seawater

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