1887

Abstract

A Gram-reaction-negative, yellow-pigmented, rod-shaped, aerobic, non-motile, non-spore-forming bacterium, designated strain QTA69, was isolated from a subsurface sediment sample collected at the Qiangtang basin, Qinghai–Tibetan Plateau, PR China. Cells were catalase-positive and oxidase-negative. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain QTA69 was a member of the genus and was closely related to , and with sequence similarities from 97.90 % to 96.85 %. Strain QTA69 grew at 4–35 °C, and the optimum temperature was 25–28 °C. It grew at the pH range of 6.0–9.0 (optimum, pH 7.0–8.0) and its NaCl tolerance was 0–2.0 % (optimum, 0–1.0 %). The major cellular fatty acids were summed feature 3 (iso-C 2-OH and Cω6/Cω7), iso-C and Cω5. The major respiratory quinone was MK-7 and the major polar lipid was phosphatidylethanolamine. Genome sequencing revealed a genome size of 8.41 Mbp and a G+C content of 46.87 mol%. Based on whole genome average nucleotide identity values, phenotypic data, phylogenetic data and genotypic data, strain QTA69 represents a novel species of genus , for which the name sp. nov is proposed. The type strain is QTA69 (=CGMCC 1.13688=KCTC 72024).

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2020-02-10
2020-02-28
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