1887

Abstract

A Gram-stain-negative, orange-pigmented and strictly aerobic bacterium, designated strain MJ115, was isolated from seawater in Pohang, South Korea. Cells were non-motile rods and showed positive reactions for catalase and oxidase tests. Growth of strain MJ115 was observed at 4–35 °C (optimum, 30 °C), pH 6.0–7.0 (optimum, pH 6.5) and in the presence of 0–8.0 % (w/v) NaCl (optimum, 2.0%). Strain MJ115 contained iso-C, anteiso-C, anteiso-C 9 C 2-OH, iso-C 3-OH, iso-C 3-OH and summed feature 3 (C 7 and/or C 6) as major cellular fatty acids and menaquinone-6 as the major respiratory quinone. Phosphatidylethanolamine, two unidentified aminolipids and four unidentified lipids were detected as major polar lipids. The G+C content of the genomic DNA was 40.7 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain MJ115 formed a phyletic lineage with S1-08, JC2678 and AKS 622 within the genus . Strain MJ115 was also most closely related to S1-08, JC2678 and AKS 622 with 96.5, 96.4 and 96.0 % 16S rRNA sequence similarities, respectively. Here it is proposed that strain MJ115 represents a new species of the genus , for which the name sp. nov. is proposed. The type strain is MJ115 (=KCTC 72237=NBRC 113963). In addition, the comparison of the whole genome sequences and phenotypic features suggested that and belong to the same species. Therefore, it is proposed that is reclassified as a later heterotypic synonym of .

Funding
This study was supported by the:
  • National Institute of Biological Resources (Award NIBR No. 2020-02-001)
    • Principle Award Recipient: CheOk Jeon
  • Chung-Ang University
    • Principle Award Recipient: Chi-uneSong
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2020-12-17
2021-08-02
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