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)

Data:	2016
Resum:	Plants buffer increasing atmospheric carbon dioxide (CO2) concentrations through enhanced growth, but the question whether nitrogen availability constrains the magnitude of this ecosystem service remains unresolved. Synthesizing experiments from around the world, we show that CO2 fertilization is best explained by a simple interaction between nitrogen availability and mycorrhizal association. Plant species that associate with ectomycorrhizal fungi show a strong biomass increase (30 ± 3%, P < 0. 001) in response to elevated CO2 regardless of nitrogen availability, whereas low nitrogen availability limits CO2 fertilization (0 ± 5%, P = 0. 946) in plants that associate with arbuscular mycorrhizal fungi. The incorporation of mycorrhizae in global carbon cycle models is feasible, and crucial if we are to accurately project ecosystem responses and feedbacks to climate change.
Ajuts:	European Commission 610028 European Commission COSTACTION/ES1308
Drets:	Tots els drets reservats.
Llengua:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Publicat a:	Science, Vol. 353, Issue 6294 (July 2016) , p. 72-74, ISSN 1095-9203

DOI: 10.1126/science.aaf4610

Article. Post-print 17 p, 338.4 KB

Material suplementari. Post-print

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