1. State Key Laboratory of Plant Physiology and Biochemistry, College of Life Science, Zhejiang University, Hangzhou 310058, P.R. China
2. National Engineering Technology Research Center for Slow and Controlled Release Fertilizers, Kingenta Ecological Engineering Group Co., Linyi, Shandong 276700, P.R. China
3. College of Life Science, Shaanxi Normal University, Xi'an, Shaanxi Province 710062, P.R. China
4. Molecular Plant Biology, Department of Biochemistry, University of Turku, FI-20014 Turku, Finland