1887

Abstract

A Gram-reaction-negative, strictly aerobic, non-motile, non-spore-forming bacterial strain, designated DK6-66, was isolated from subsurface sandstone sediment located in the Qilian Mountains in Qinghai Province, Northwest China. Strain DK6-66 was found to grow optimally at pH 7.0 and 22 °C. The 16S rRNA gene sequence analysis indicated that strain DK6-66 belonged to the genus Hymenobacter and clustered with the type strain of Hymenobacter arcticus , with which it exhibited a 16S rRNA gene sequence similarity value of 98.2 %. The DNA G+C content was 60.4 mol%. The major respiratory quinone was MK-7 and the major polar lipid was phosphatidylethanolamine. The major fatty acids were C16 : 1ω7c and/or C16 : 1ω6c, anteiso-C17 : 1 B and/or iso-C17 : 1 I, iso-C15 : 0, anteiso-C15 : 0 and C16 : 1ω5c. On the basis of phylogenetic and phenotypic data, strain DK6-66 was classified in the genus Hymenobacter as a member of a novel species, for which the name Hymenobacter bucti sp. nov. is proposed. The type strain is DK6-66 (=CGMCC 1.15795=KCTC 52629).

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2018-07-31
2019-10-20
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