RT Journal Article SR Electronic(1) A1 Fang, Xiao-Mei A1 Su, Jing A1 Wang, Hao A1 Wei, Yu-Zhen A1 Zhang, Tao A1 Zhao, Li-Li A1 Liu, Hong-Yu A1 Ma, Bai-Ping A1 Klenk, Hans-Peter A1 Zhang, Yu-Qin A1 Yu, Li-YanYR 2013 T1 Williamsia sterculiae sp. nov., isolated from a Chinese medicinal plant JF International Journal of Systematic and Evolutionary Microbiology, VO 63 IS Pt_11 SP 4158 OP 4162 DO https://doi.org/10.1099/ijs.0.052688-0 PB Microbiology Society, SN 1466-5034, AB Two actinobacterial strains, CPCC 203464T and CPCC 203448, isolated from surface-sterilized stems of medicinal plants were subjected to a polyphasic taxonomic study. These two aerobic organisms formed pale yellow colonies on tryptic soy agar (TSA). Cells were Gram-stain-positive, non-acid-fast, non-motile, rod- or coccoid-like elements. Comparative 16S rRNA gene sequence analysis indicated that strains CPCC 203464T and CPCC 203448 were most closely related to the type strains of the species of the genus Williamsia . Chemotaxonomic properties such as containing meso-diaminopimelic acid in the cell wall, arabinose, galactose and ribose being the whole-cell hydrolysate sugars, phosphatidylethanolamine (PE), diphosphatidylglycerol (DPG), phosphatidylglycerol (PG) and phosphatidylinositol (PI) as the phospholipids, and C16 : 0, 10-methyl C18 : 0, C18 : 1ω9c, C16 : 1ω7c and/or iso-C15 : 0 2-OH as major fatty acids supported the affiliation of strains CPCC 203464T and CPCC 203448 to the genus Williamsia . The DNA–DNA hybridization values in combination with differentiating chemotaxonomic and physiological characteristics strongly suggested that these two isolates should be classified as representatives of a novel species of the genus Williamsia . The name Williamsia sterculiae sp. nov. is proposed, with strain CPCC 203464T ( = DSM 45741T = KCTC 29118T) as the type strain., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.052688-0