Alain Puppo is Professor Emeritus at the Université de Nice - Sophia-Antipolis. Holder of a PhD in Plant Biology, he has devoted most of his career to the study of the symbiosis of nitrogen fixing Legumes - Rhizobium. After a postdoctoral fellowship in Professor Barry Halliwell's Laboratory at King's College London, he focused on examining the role of Active Oxygen Species in signal exchange between symbiotic partners. He is the author of more than 100 scientific publications and has coordinated two Marie Curie European research and training networks. He has also been involved in the training of teachers in Life and Earth Sciences and was a member of the CAPES jury. He was Deputy Director of the INRA - CNRS - Université de Nice-Sophia Antipolis Joint Research Unit « Interactions Biotiques et Santé Végétale » in Sophia-Antipolis, and a member of the Conseil National des Universités et du Comité National de la Recherche Scientifique.