1. Laboratory of Plant Molecular Biology, The Rockefeller University, 1230 York Avenue, New York, New York 10021-6399
2. Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama 351-0198, Japan
3. Tama Biochemical Co., Ltd., Shinjuku-ku, Tokyo 163-0704, Japan
4. Department of Chemistry, Joetsu University of Education, Joetsu-shi, Niigata 943-8512, Japan
5. Department of Biosciences, Teikyo University, Utsunomiya 320-8551, Japan
6. Department of Science of Plant and Animal Production, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo 183-8509, Japan