Devosia nitraria sp nov., a novel species isolated from the roots of Nitraria sibirica in China

An aerobic, Gram-stain negative, short rod-shaped and motile strain, 36-5-1(T), was isolated from the roots of Nitraria sibirica in Zhangye city, Gansu province, north-west of China. Phylogenetic analysis based on the 16S rRNA gene sequence and two housekeeping genes (glnA and atpD) indicated that the strain represents a novel species closely related to the Devosia, Rhizobium and Devosia genera with 98.3, 96.2 and 91.1% similarities, respectively. The strain 36-5-1(T) contained Q-10 as the predominant ubiquinone and 16:0 (36.8%) as the major fatty acid; a large amount of unidentified glycolipid, diphosphatidylglycerol, phosphatidylglycerol and a small amount of unidentified polar lipids were present as polar lipids. In addition, the G+C content of the genomic DNA was 61.7 mol% and the DNA-DNA hybridization with type strains Devosia geojensis BD-c194(T) and Devosia pacifica NH131(T) 44.1 +/- 1.1 and 40.2 +/- 1.7, respectively. Based on chemotaxonomic data and molecular properties, strain 36-5-1(T) represents a novel species within the genus Devosia, for which the name Devosia nitraria sp. nov. is proposed. The type strain is 36-5-1(T) (=CGMCC1.15704(T)=NBRC112416(T)).