Marc-André SELOSSE is professor at Muséum national d’Histoire naturelle (Paris), and at Universities of Kunming (China) and Gdansk (Poland). His researches focus on the ecology and evolution of mycorrhizas, a major symbiosis between soil fungi and roots of most land plants. He also has a general interest for symbiosis and its evolution. He is head of the French Botanical Society, member of the French Academy of Agriculture and editor of several international scientific journals. He published outreach books in French on microbiota (Jamais seul, 2017) and tannins (Les goûts et les couleurs du monde, 2019).