sp. nov., isolated from lead-zinc mine tailing, and reclassification of two species as comb. nov. and comb. nov.

A Gram-positive, acid-fast, aerobic, rapidly growing and non-motile strain was isolated from lead-zinc mine tailing sampled in Lanping, Yunnan province, Southwest China. 16S rRNA gene sequence analysis showed that the most closely related species of strain KC 300 was CGMCC 4.5724 (98.47 %). Additionally, phylogenomic and specific conserved signature indel analysis revealed that strain KC 300 should be a member of genus , and CECT 8779 and DSM 104744 should also members of genus . The genome size of strain KC 300 was 6.2 Mb with an DNA G+C content of 69.2 mol%. Chemotaxonomic characteristics of strain KC 300 were also consistent with the genus . The average nucleotide identity, digital DNA-DNA hybridization and average amino acid identity values, as well as phenotypic, physiological and biochemical characteristics, support that strain KC 300 represents a new species within the genus , for which the name sp. nov. is proposed, with the type strain KC 300 (=CGMCC 1.19494=JCM 35915). In addition, we reclassified and as comb. nov. and comb. nov., respectively.