1. School of Life Sciences; Sun Yat-sen University; Guangzhou 510275 China
2. Institute of Chinese Medicine; The Chinese University of Hong Kong; Shatin New Territories Hong Kong SAR 999077 China
3. State Key Laboratory of Phytochemistry and Plant Resources in West China; The Chinese University of Hong Kong; Shatin New Territories Hong Kong SAR 999077 China
4. School of Biological Science; Yili Normal University; Yining Xinjiang 835000 China
5. Shenzhen Research Institute; The Chinese University of Hong Kong; Shenzhen 518000 China