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A Gram-staining-negative, rod-shaped, non-spore-forming bacterium, designated strain R27T, was isolated from the moss Grimmia montana, collected from Beijing Songshan National Nature Reserve, China, and characterized by using a polyphasic taxonomic approach. The predominant fatty acids of strain R27T were C18 : 1ω7c (33.6 %), C16 : 0 (16.3 %), summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c; 15.8 %) and C17 : 0 cyclo (8.7 %) and its major polar lipids were phosphatidylethanolamine, phosphatidylglycerol, three uncharacterized aminolipids and an unknown phospholipid. Strain R27T contained Q-8 as the dominant isoprenoid quinone and the G+C content of its genomic DNA was 64.6 mol%. On the basis of 16S rRNA gene sequence comparison, strain R27T showed 99.1 % similarity to the closest related type strain, Burkholderia zhejiangensis OP-1T, and 97.6 % similarity to Burkholderia glathei ATCC 29195T. However, the DNA–DNA relatedness between strain R27T and B. zhejiangensis CCTCC AB 2010354T and B. glathei ATCC 29195T was 10.2 and 14.9 %, respectively. Based on 16S rRNA and rpoB gene sequence similarities and phenotypic and chemotaxonomic data, strain R27T is considered to represent a novel species of the genus Burkholderia , for which the name Burkholderia grimmiae sp. nov. is proposed. The type strain is R27T ( = CGMCC 1.11013T = DSM 25160T).
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