1887

Abstract

A Gram-stain-negative, aerobic, non-motile and coccus-shaped bacterium (THG-3.7) was isolated from seawater. Growth occurred at 10–30 °C (optimum 25 °C), at pH 6–8 (optimum 7) and in the presence of 1–8 % (w/v) NaCl (optimum 4 %). Based on 16S rRNA gene sequence analysis, the nearest phylogenetic neighbours of strain THG-3.7 were identified as DSM 15026 (95.3 % similarity), DSM 14239 (95.2 %), KCTC 32108 (95.1 %), KACC 14537 (94.9 %), KCTC 12276 (94.7 %) and CGMCC 1.6130 (94.7 %). 16S rRNA gene sequence similarities among strain THG-3.7 and other species were lower than 94.7 %. The polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, one unidentified lipid and one unidentified aminolipid. The quinone system was composed of Q-8. The major fatty acids were C, C 7 and summed feature 3 (C 7 and/or iso-C 2-OH). The DNA G+C content of strain THG-3.7 was 47.9 mol%. On the basis of the data presented, strain THG-3.7 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is THG-3.7 (=KACC 19478=CCTCC AB 2017258).

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2019-01-04
2021-10-18
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