Bacterial strain VA15 was isolated from forest soil of the Changbai Mountains, Heilongjiang Province, China. Cells of strain VA15 were Gram-positive-staining, 0.2–0.3 μm in diameter and 0.3–1.0 μm long, strictly aerobic, non-motile and rod-shaped or coccoid. Growth occurred at 16–34 °C (optimum, 29 °C), at pH 5.5–8.5 (optimum, pH 6.2–6.5) and in the presence of 0–1 % (w/v) NaCl (optimum, 0–0.25 %). Strain VA15 contained MK-8(H) as the major respiratory quinone and -2,6-diaminopimelic acid as the cell-wall diamino acid. The major cellular fatty acids were iso-C (18.1 % of the total), 10-methyl C (11.8 %) and 10-methyl C (10.7 %). The DNA G+C content of strain VA15 was 71.6 mol% ( ). 16S rRNA gene sequence analysis indicated that strain VA15 was phylogenetically related to members of the genus ; levels of similarity to the type strains of recognized species ranged from 92.9 to 97.7 %. Levels of DNA–DNA relatedness between strain VA15 and its closest phylogenetic relatives, DSM 18660 and DSM 18248, were 21 and 16 %, respectively. Based on these results, it is concluded that strain VA15 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is VA15 (=CGMCC 1.7056 =NBRC 104259).


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Scanning electron micrograph of cells of sp. nov. VA15 grown on R2A agar at 30 °C for 3 days. Bar, 5.0 µm.

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