Richard Dixon rappelle que la plante adapte sa synthèse des polyphénols au type d'agression, herbivore, stress hydrique, attaque fongique, grêle, etc... The Plant Cell, Vol. 7, 1085-1097, July 1995 0 1995 American Society of Plant Physiologists Stress-lnduced Phenylpropanoid Metabolism Richard A. Dixon' and Nancy L. Paiva Plant Biology Division, Samuel Roberts Noble Foundation, P.0. Box 2180, Ardmore, Oklahoma 73402