Mycorrhizal association as a primary control of the CO2 fertilization effect - Terrer, César (Imperial College London. Department of Life Sciences) ; Vicca, Sara (Universiteit Antwerpen. Departement Biologie) ; Hungate, Bruce A (Northern Arizona University. Center for Ecosystem Science and Society) ; Phillips, Richard P. (Indiana University, Bloomington. Department of Biology) ; Prentice, Iain Colin (Imperial College London. Department of Life Sciences)