1887

Abstract

A Gram-stain-negative, aerobic, motile by gliding, rod-shaped and pink-coloured bacterium, designated strain SW-16, was isolated from the sediment of small stream in the Republic of Korea. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain SW-16 formed a lineage within the genus of the family . Phylogenetic analysis also showed that strain SW-16 was most closely related to 15-51 (98.0% 16S rRNA gene sequence similarity), R135 (97.5%), 15-52 (97.4%), DS-27 (97.0%) and THG-T17 (97.0%). Growth was observed at 10–37 °C (optimum at 30 °C), pH 6–8 (optimum at pH 7) and with 0–2.0 % NaCl (optimum at 0%). The major fatty acids of the bacterial strain were iso-C, iso-C 3-OH and summed feature 3 (iso-C 2-OH and/or C 7). The predominant respiratory quinone was menaquinone-7 and the major polar lipids were phosphatidylethanolamine, two unidentified amino lipids, one unidentified phospholipid and three unidentified lipids. The genome size of strain SW-16 was 5.8 Mbp and the G+C content was 38.5 mol%. Based on the results of phenotypic, genomic and phylogenetic analyses, strain SW-16 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is SW-16 (=KEMB 1602–396=KCTC 82079=JCM 34181).

Funding
This study was supported by the:
  • Kyonggi University
    • Principle Award Recipient: HongSik Im
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2021-09-30
2021-10-24
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