sp. nov., an indole-3-acetic acid-producing endophytic bacterium isolated from .

A novel rod-shaped, Gram-stain-positive, spore-forming and motile by peritrichous flagella strain, designated HJL G12, was isolated from the root of Chinese herb . Strain HJL G12 grew optimally at pH 7.0, 30 °C and in the presence of 1.0 % NaCl (w/v). Phylogenetic analysis based on 16S rRNA gene and genomic sequences showed that HJL G12 clustered with NBRC 15958 and YH-JAE5 with 98.3 and 98.2 % sequence similarity. The DNA-DNA hybridization values between strain HJL G12 and the two reference strains were 23.6 % and 24.9 %, respectively. Menaquinone-7 was the only respiratory quinone and -diaminopimelic acid was present in the cell-wall peptidoglycan. Antesio-C and iso-C were detected to be the major cellular fatty acids. The cellular polar lipid profile contained diphosphatidyglycerol, phosphatidylglycerol, phosphatidylethanolamine, lysyl-phospatidylglycerol and three unidentified aminophospholipids. Based on these results, strain HJL G12 is considered to represent a novel species within the genus , for which the name sp. nov. is proposed, with HJL G12 (=NBRC 115617=CGMCC 1.18520) as the type strain.