1. 1The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, PR China
2. 2Jiangsu Yuanyuan Bioengineering Co. Ltd, Xuzhou, Jiangsu, PR China
3. 3State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, PR China