Abstract
A Gram-stain negative, motile and short rod-shaped bacterial strain, designated KF89T, was isolated from seawater of Tong-Yeong, South of Korea. Growth occurred between 10 and 35 °C (optimum 32 °C) and at pH 6.0–9.0 (optimum pH 7.0) and at 0–7 % NaCl (optimum at 2 % NaCl). The 16S rRNA gene sequence identified it as a member of the genus Paracoccus that belongs to the phylum Proteobacteria. Based on the 16S rRNA gene sequence, the highest degree of gene sequence similarities were shared with Paracoccus homiensis DD-R11T (97.3 %), P. zeaxanthinifaciens ATCC21588T (97.1 %), P. rhizosphaerae CC-CCM15-8T (96.9 %), P. beibuensis JLT1284 (96.9 %) and P. aestuarii B7T (96.6 %). Strain KF89T contained Ubiquinone-10 as the major respiratory quinone, and the polar lipid profile included phosphatidylglycerol, phosphatidylcholine, diphosphatidylglycerol and an unidentified aminolipid. The major fatty acid of strain KF89T is C18:1 ω7c and the DNA G+C content is 57 mol%. Strain KF89T showed a DNA–DNA relatedness with P. homiensis KACC 11518T of 49 %. Based on phylogenetic and phenotypic analyses, strain KF89T is clearly shown to be a novel member of the genus Paracoccus. The type strain is Paracoccus aquimaris KF89T (=KEMB 3-508T = JCM 19892T).

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This research is supported by National Research Foundation of Korea (NRF-2013M3A2A1067498) and Korea Environmental Microorganism Bank (NRF-2010-0007473).
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The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain KF89T is KP716798.
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Figure S1
Transmission electron micrographic picture of strain KF89T. The cells are stained by negatively. (PPTX 93 kb)
Figure S2
Polar lipid profile contained phosphatidylglycerol, phosphatidycholine, diphosphatidylglycerol, unidentified phospholipid, unidentified amino lipid and three unidentified lipids. (PPTX 392 kb)
Figure S3
Maximum likelihood tree of strain KF89T and closely related Paracoccus type strains based on 16S rRNA gene sequence comparisons. (PPTX 445 kb)
Figure S4
Maximum parsimony tree of strain KF89T and closely related Paracoccus type strains based on 16S rRNA gene sequence comparisons. (PPTX 388 kb)
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Kim, K., Lee, SS. Paracoccus aquimaris sp. nov., isolated from seawater. Antonie van Leeuwenhoek 108, 871–877 (2015). https://doi.org/10.1007/s10482-015-0541-0
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DOI: https://doi.org/10.1007/s10482-015-0541-0


