Institute of Molecular Biology and Biotechnology, University of Lahore

Staff Member, Department of Global Ecology, Carnegie Institution for Science

The James Hutton Institute

Professeur en biologie, Université Paris-Saclay

Adjunct Professor University of Western Australia

Michigan State University

University of Colorado and University of Arizona

Professor Molecular Plant Physiology, University Zurich

Emeritus Professor in Plant Physiology, University of Sussex

Professor, Instituto Superior de Agronomia