1887

Abstract

Employing a modified cultivation method, we studied two bacterial strains, UC10 and UC38, found on the Kyonggi University campus, Suwon in Gyeonggi-Do province, South Korea. These strains were non-spore-forming, Gram-stain-negative, motile and rod-shaped. Growth occurred in the presence of 0–2 % (w/v) NaCl, at pH 4–9 and a temperature range of 4–35 °C. On an R2A agar plate incubated for 5 days at 28 °C, irregular, raised and pale-yellowish colonies were observed. Comparative analysis of nearly full-length 16S rRNA gene sequences indicated that these strains were closely related to GXGD002, with 98.6 % similarity. Strains UC10 and UC38were 98.0 % similar to GH9-3; 97.8 % to DS-43; 97.3–97.7 % to Gsoil 3165; 97.7–98.0 % to IAM 12373; 97.4–97.6 % to 2C1-b; and 97.3–97.4 % to BAM-48. The predominant ubiquinone was Q-8. The primary polar lipids were diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine. The major fatty acids were C, summed feature 3 (Cω7 and/or Cω6), summed feature 8 (Cω7 and/or Cω6) and Ccyclo. DNA–DNA hybridization assays indicated 89.2–91.4 % genomic DNA similarity between strains UC10 and UC38. Moreover, genomic DNA similarity between these novel strains and reference strains of the genus was less than the 70 %. Based on these results, strain UC38 was designated a representative of a novel species of the genus , with the proposed name sp. nov. The type strain is UC38(=KACC 18501=NBRC 111520).

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2016-07-01
2021-08-01
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