1887

Abstract

A Gram-stain-negative, yellow-pigmented, strictly aerobic bacterium, designated strain MaA-Y11, was isolated from a culture of in the Republic of Korea. Cells were non-motile rods showing catalase- and oxidase-positive reactions. Growth of strain MaA-Y11 was observed at 25–37 °C (optimum, 30 °C) and pH 6.0–9.0 (optimum, 7.0) and in the presence of 0–1.0 % (w/v) NaCl (optimum, 0 %). Strain MaA-Y11 did not produce flexirubin-type pigments. Strain MaA-Y11 contained iso-C, iso-C 3-OH and summed feature 3 (Cω7 and/or Cω6) as major cellular fatty acids and menaquinone-6 as the sole isoprenoid quinone. Phosphatidylethanolamine, three unidentified aminolipids and four unidentified lipids were detected as the major polar lipids. The G+C content of the genomic DNA was 37.0 mol%. Phylogenetic analysis, based on 16S rRNA gene sequences, showed that strain MaA-Y11 formed a phyletic lineage with IP-10 within the genus . Strain MaA-Y11 was most closely related to IP-10, with a 98.85 % 16S rRNA gene sequence similarity, and shared less than 93.87 % sequence similarities with other type strains. Average nucleotide identity and DNA–DNA hybridization values between strain MaA-Y11 and the type strain of were 87.0 and 32.3 %, respectively. Here, we conclude that strain MaA-Y11 represents a new species of the genus , for which the name sp. nov. is proposed. The type strain is MaA-Y11 (=KACC 21225=JCM 33501).

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2019-11-15
2019-12-11
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