1. Institute
of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
2. Key
Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry
of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
3. Department
of Pharmacognosy, Faculty of Pharmacy, King Saud University, Riyadh, Saudi Arabia
4. State
Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China