1887

Abstract

Two novel bacterial strains (4M3-2 and 10-107-7) were isolated from poplar tree bark. The strains were Gram-stain-negative facultative aerobes, and produced short rods that were motile because of polar flagella. A phylogenetic tree was reconstructed based on 16S rRNA gene sequences indicating that the two novel strains are related to species of the genus and . The two novel strains shared the highest 16S rRNA gene sequence similarities with CW5 7Y-4 (97.1 %) and DSM 21988 (96.6 %)o. The lipids of the novel strain contain diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylmonomethylethanolamine, phosphatidylcholine and sulfoquinovosyl diacylglycerol. The presence of a distinct glycolipid (sulfoquinovosyl diacylglycerol) is an important chemotaxonomic feature used to distinguish between species of the genera, and . Additionally, the DNA–DNA hybridization results indicated that the two novel strains represent a novel taxon distinct from . The results of the 16S rRNA gene sequence analysis, as well as the physiological and biochemical characteristics imply that the two novel strains should be assigned to a novel species, with the proposed name sp. nov. The type strain is 4M3-2 (=CFCC 11187=KCTC 42087).

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2018-02-01
2020-01-25
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