sp. nov. and sp. nov., isolated from faeces of Tibetan antelope () and leaves of dandelion (), respectively, on the Qinghai-Tibet Plateau.

In the present study, four bacterial strains, two (S-713 and 406) isolated from faecal samples of Tibetan antelopes and the other two (S-531 and 1598) from leaves of dandelion collected on the Qinghai-Tibet Plateau of PR China, were analysed using a polyphasic approach. All four isolates were aerobic, rod-shaped, non-motile, oxidase-negative, Gram-stain-positive and catalase-positive. According to four phylogenetic trees, strain pairs S-713/406 and S-531/1598 form two independent branches belonging to the genus , and are closest to , , , , and . Although sharing MK8-(H) as their major isoprenoid quinone, strains S-713 and S-531 contained C 9 (24.64 and 16.34 %) and iso-C (9.74 and 29.38 %), respectively, as their main fatty acids, with remarkable differences in their biochemical profiles but only slight ones in their optimal growth conditions. The chromosomes of strains S-713 and S-531 were 4 207 844 bp (G+C content, 73.0 mol%) and 4 809 817 bp (G+C content, 72.5 mol%), respectively. Collectively, the two strain pairs represent two separate novel species of the genus , for which the names sp. nov. and sp. nov. are proposed, with S-713 (=JCM 33698=CGMCC 4.7660) and S-531 (=JCM 33468=CGMCC 4.7659) as the respective type strains.