1. Yunnan Institute of Microbiology; Yunnan University; Kunming 650091 P. R. China
2. Key Laboratory of Chemical Biology (Ministry of Education); School of Pharmaceutical Sciences; Shandong University; No. 44 West Wenhua Road Jinan 250012 P. R. China
3. State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources; School of Life Sciences; Sun Yat-Sen University; Guangzhou 510275 P. R. China