Institution: | 1. Graduate School of Life Sciences, Tohoku University, 2‐1‐1 Katahira, Aoba‐ku, Sendai 980‐8577 (Japan), Fax: (+81)?22‐217‐6214;2. Graduate School of Agricultural Science, Tohoku University, 1‐1 Tsutsumidori‐amamiya, Aoba‐ku, Sendai 981‐8555 (Japan) |