Une synthèse de la durée de vie des racines et de ses facteurs environnementaux et végétaux

Une collaboration internationale, dont fait partie Grégoire Freschet de la SETE, a publié dans PNAS une synthèse sur la durée de vie des racines et ses facteurs environnementaux et végétaux.

Fine root turnover is an essential process controlling the uptake, conservation, and loss of nutrients, water, and carbon between plants and soils. As such, it is at the core of the recent but already well-known and hotly debated root economics space (RES) theory.

Here, gathering an unprecedented dataset, we suggest that the current interpretation of the global RES axes needs to be partly reconsidered to account for the potential roles of the two axes in defining the fast–slow continuum in root strategies.

We also demonstrate that there are major differences between plant above and belowground strategies for the longevity of leaf vs. root organs. Overall, our work provides a synthesis of root lifespan and its environmental and plant-related drivers.

Voir aussi

Linking fine root lifespan to root chemical and morphological traits—A global analysis - Hou, J., M. L. McCormack, P. B. Reich, T. Sun, R. P. Phillips, H. Lambers, H. Y. H. Chen, Y. Ding, L. H. Comas, O. J. Valverde-Barrantes, E. F. Solly, and G. T. Freschet. - Proceedings of the National Academy of Sciences 121e2320623121. 2024. https://doi.org/10.1073/pnas.2320623121


Date de modification : 13 juin 2024 | Date de création : 11 juin 2024 | Rédaction : Tulip Communication / Grégoire Freschet