1887

Abstract

Two novel strains, T9 and T10, were isolated from water samples collected from Chishui River flowing through Maotai town, Guizhou, south-west China. The isolates were yellow-pigmented, Gram-reaction-negative, rod-shaped, non-motile and aerobic. Phylogenetic analysis based on 16S rRNA gene sequences showed that the isolates belonged to the genus , and showed highest similarities to DSM 12611 (97.0 %), followed by Kw05 (96.7 %) and DSM 6368 (96.7 %). The novel strains were able to grow at 20–37 °C (optimum 25 °C), pH 7.0–10.0 (optimum pH 7.0–8.0) and with 0–0.5 % (w/v) NaCl (optimum 0.5 %). The predominant fatty acids were iso-C, Cω7, anteiso-C, C, iso-C 3-OH and iso-Cω10, and menaquinone-6 (MK-6) was the main respiratory quinone. The major polar lipids were phosphatidylethanolamine, one unknown glycolipid, two unknown aminolipids and two unidentified lipids. The DNA G+C contents of strains T9 and T10 were 37.7 and 36.4 mol%, respectively. According to the phenotypic and genetic data, strains T9 and T10 represent a novel species in the genus , for which the name sp. nov. is proposed. The type strain is T9 ( = CGMCC 1.12712 = JCM 19927).

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2015-01-01
2021-10-25
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