1. College of Horticulture, Hainan University, Haikou 570228, China;
2. Haikou Key Laboratory for Research and Utilization of Tropical Natural Products, Institute of Tropical Bioscience and Biotechnology, CATAS, Haikou 571101, China;
3. Hainan Academy of Tropical Agricultural Resource, CATAS, Haikou 571101, China