1887

Abstract

A novel psychrophilic, light-yellow-coloured, aerobic, Gram-stain-negative, rod-shaped, non-motile bacterium, designated strain AR-3-4 was isolated from a sample of Arctic soil. Strain AR-3-4 grew at 0–25 °C, pH 6.0–9.0 and 0–1.0 % (w/v) NaCl concentration. The 16S rRNA gene sequence analysis showed that strain AR-3-4 belonged to the genus , with nearest phylogenetic neighbour being H7 (97.5 % sequence similarity). The strain comprised phosphatidylethanolamine as the main polar lipid, MK-6 as predominant respiratory quinone, and summed feature 3 (Cω7 and/or Cω6), anteiso-C and iso-C as the major fatty acids. The average nucleotide identity and DNA–DNA hybridization values between strain AR-3-4 and closest members were below the threshold values of 95 % and 70 %, respectively. The DNA G+C content was 33.0 mol%. Based on the polyphasic taxonomic data, the novel species sp. nov. is proposed with the type strain AR-3-4 (=KEMB 9005–740=KACC 21171=NBRC 113787).

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2019-09-11
2020-01-22
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