Affiliation: | (1) Institute of Molecular and Cellular Biosciences, University of Tokyo, Bunkyo-ku, 113 Tokyo, Japan;(2) Department of Botany, Hokkaido University, 060 Sapporo, Japan;(3) Faculty of Agriculture, Tohoku University, 981 Sendai, Japan;(4) Shiraoka Research Station of Biological Science, Nissan Chemical Industries, Ltd., Minamisailama, 349-02 Saitama, Japan |