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Abstract

A bacterial strain, B5-2, was isolated from an ice core drilled from Muztagh Glacier, China. Strain B5-2 was a Gram-stain-negative, short rod-shaped, motile by polar flagella, aerobic bacterium. The major fatty acids of strain B5-2 were summed feature 8 (C18 : 1 ω7c and/or C18 : 1 ω6c) and iso-C13 : 0. The G+C content of the DNA from strain B5-2 was 69.3 mol%. The predominant isoprenoid quinone of strain B5-2 was Q-10. The major polar lipids were phosphatidylglycerol, phosphatidylethanolamine, phosphatidylmonomethylethanolamine, phosphatidyldimethylethanolamine, phosphatidylcholine, an unidentified phospholipid and sulfoquinovosyldiacylglycerol. Comparative 16S rRNA gene sequence analysis revealed that the novel strain B5-2 shared highest similarity (96.7 %) with Aureimonas altamirensis S21B. On the basis of the results of this polyphasic study, strain B5-2 represents a novel species of the genus Aureimonas, for which the name Aureimonas glaciei sp. nov. is proposed. The type strain is B5-2 (=CGMCC 1.15493=KCTC 52395).

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2017-02-24
2019-12-05
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