Becquer A. auteur aut IRD Trap Jean auteur aut IRD Irshad U. auteur aut IRD Ali M. A. auteur aut IRD Claude P. auteur aut IRD text journalArticle eng text/pdf born digital access Phosphorus (P) is essential for plant growth and productivity. It is one of the most limiting macronutrients in soil because it is mainly present as unavailable, bound P whereas plants can only use unbound, inorganic phosphate (Pi), which is found in very low concentrations in soil solution. Some ectomycorrhizal fungi are able to release organic compounds (organic anions or phosphatases) to mobilize unavailable P. Recent studies suggest that bacteria play a major role in the mineralization of nutrients such as P through trophic relationships as they can produce specific phosphatases such as phytases to degrade phytate, the main form of soil organic P. Bacteria are also more effective than other microorganisms or plants at immobilizing free Pi. Therefore, bacterial grazing by grazers, such as nematodes, could release Pi locked in bacterial biomass. Free Pi may be taken up by ectomycorrhizal fungus by specific phosphate transporters and transferred to the plant by mechanisms that have not yet been identified. This mini-review aims to follow the phosphate pathway to understand the ecological and molecular mechanisms responsible for transfer of phosphate from the soil to the plant, to improve plant P nutrition. specialized phosphate tree P nutrition bacterial grazers ectomycorrhizal association phosphate transport systems 076 068 084 5 548 2014 1664-462X https://www.documentation.ird.fr/hor/fdi:010062706 10.3389/fpls.2014.00548 1664-462X [F B010062706] https://www.documentation.ird.fr/hor/fdi:010062706 https://www.documentation.ird.fr/intranet/publi/2014/12/010062706.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2015-01-12 2017-08-23 fdi:010062706 fre