Affiliation: | (1) Friedrich Miescher-Institut, Postfach 2543, CH-4002 Basel, Switzerland;(2) Biotechnology Research, Ciba-Geigy Corp., 27709-2257 Research Triangle Park, NC, USA;(3) Present address: Agency of Industrial Science and Technology, Fermentation Research Institute, 1-1-3 Higashi, 305 Tsukuba, Ibaraki, Japan;(4) Present address: Abt. Pflanzenphysiologie, Botanisches Institut, Hebelstrasse 1, CH-4056 Basel, Switzerland |