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Link to original content: https://doi.org/10.1007/s00284-012-0200-x
Polaribacter reichenbachii sp. nov.: A New Marine Bacterium Associated with the Green Alga Ulva fenestrata | Current Microbiology Skip to main content
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Polaribacter reichenbachii sp. nov.: A New Marine Bacterium Associated with the Green Alga Ulva fenestrata

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Abstract

A Gram-negative, aerobic, rod-shaped, motile by gliding and yellow-pigmented bacterium, designated strain 6Alg 8T, was isolated from the common Pacific green alga Ulva fenestrata. The phylogenetic analysis based on 16S rRNA gene sequence placed the novel strain within the genus Polaribacter, a member of the family Flavobacteriaceae, the phylum Bacteroidetes, with sequence similarities of 97.6 % to Polaribacter dokdonensis DSW-5T and 92.8–96.1 % to other recognized Polaribacter species. The prevalent fatty acids of strain 6Alg 8T were iso-C15:0, iso-C15:1, iso-C15:0 2-OH, C15:0 and C15:1ω6. The polar lipid profile consisted of the major lipids phosphatidylethanolamine, two unknown aminolipids and one unknown lipid. The DNA G+C content of the type strain is 31.6 mol%. The new isolate and the type strains of recognized species of the genus Polaribacter were readily distinguished based on a number of phenotypic characteristics. A combination of the genotypic and phenotypic data showed that the algal isolate represents a novel species of the genus Polaribacter, for which the name Polaribacter reichenbachii sp. nov. is proposed. The type strain is 6Alg 8T (= KCTC 23969T = KMM 6386T = LMG 26443T).

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Acknowledgments

We thank Dr. Jung-Sook Lee (Daejeon, Republic of Korea) for providing us with the type strain Polaribacter gangjinensis KCTC 22729T. This research was supported by grants of the Presidium of the Russian Academy of Sciences “Molecular and Cell Biology”, the Presidium of the Far-Eastern Branch of the Russian Academy of Sciences no. 12-III-A-06-105, the Presidium of the Russian Academy of Sciences no. 069-III-A-06-183227 and the government of Russian Federation for the state support of scientific investigations conducting under the guidance of the leading researchers at the Russian education institutions of the high professional education, agreement no. 11.G34.31.0010.

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Correspondence to Olga I. Nedashkovskaya.

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The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of Polaribacter reichenbachii 6Alg 8T is HQ891656.

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Nedashkovskaya, O.I., Kukhlevskiy, A.D. & Zhukova, N.V. Polaribacter reichenbachii sp. nov.: A New Marine Bacterium Associated with the Green Alga Ulva fenestrata . Curr Microbiol 66, 16–21 (2013). https://doi.org/10.1007/s00284-012-0200-x

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