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Abstract

A Gram-negative and facultative aerobic strain, designated as strain MA-13, was isolated from seawater in the Yellow Sea Republic of Korea. Cells were oxidase- and catalase-positive and non-motile short rods. Growth of strain MA-13 was observed over a range of 10–37 °C (optimum, 30 °C), pH 6.0–11.0 (optimum, pH 7.0) and in the presence of 0–5.5 % (w/v) sodium chloride (optimum, 1.0–2.0 %). Strain MA-13 contained ubiquinone-8 as the respiratory quinone, phosphatidylethanolamine, an unidentified aminolipid, an unidentified phospholipid and four unidentified lipids as major polar lipids and C, C 3-OH and summed feature 3 (C 7 and/or C 6) as major cellular fatty acids. The G+C content of the genomic DNA was 48.3 mol%. Phylogenetic analyses based on the 16S rRNA gene and whole-genome sequences revealed that strain MA-13 formed a distinct phyletic lineage in the genus . Strain MA-13 was most closely related to YQF-2, SW-353, KMM 1406 and DSM 14885 with 98.10, 98.08, 98.07 and 97.94 % 16S rRNA gene sequence similarities. Average nucleotide identity and DNA–DNA hybridization values between strain MA-13 and KCTC 12840, DSM 17616 and DSM 14885 were 76.3, 78.6 and 76.9 % and 19.5, 21.3 and 20.5 %, respectively. Based on the phenotypic, chemotaxonomic and molecular features, strain MA-13 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is MA-13 (=KACC 22113=JCM 34600).

Funding
This study was supported by the:
  • National Institute of Biological Resources (Award NIBR202129201)
    • Principle Award Recipient: CheOk Jeon
  • Ocean Science & Technology (KR) (Award KIOST20210469)
    • Principle Award Recipient: CheOk Jeon
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2022-06-10
2024-07-22
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