Born 1953 in Bedford/England. Study of Natural Sciences Cambridge Univ./England, PhD (1978), German Habilitation in biochemistry of plants University of Göttingen (1984), Fiebiger Professorship for Plant Biochemistry Bayreuth Univ. (1986), Full Professor for Botany Heidelberg Univ. (1991), Director and Scientific Member at the Max Planck Institute of Molecular Plant Physiology (2000), Honorary Professor University of Potsdam (2002), Honorary Professor University of Umeo (2008). Emeritus since February 2021.