Institution: | (1) Plant Biotechnology Institute, National Research Council of Canada, 110 Gymnasium Road, S7N OW9 Saskatoon, Saskatchewan, Canada;(2) Present address: Centre de Physiologie Végétale, Unité Associée au C.N.R.S. no. 241, 118 route de Narbonne, 31062 Toulouse Cedex, France |