Affiliation: | Forestry and Forest Products Research Institute, P.O. Box 16, Tsukuba Norin Kenkyu Danchi-nai, Ibaraki 305, Japan;Biological Institute, Faculty of Science, Tohoku Univ., Sendai 980, Japan;Dept of Chemical and Biological Sciences, Faculty of Science. Japan Women's Univ., Mejirodai, Tokyo 112, Japan |