Acronym

DGT exudates

Abstract

Carboxylate root exudation is key for nutrient acquisition in phosphorus (P)-deficient soils, but sampling from soil-grown roots is difficult due to low concentrations and rapid degradation. Many studies therefore use artificial growth systems, limiting insight into exudation dynamics. Building on our low-invasive citrate method based on diffusive gradients in thin films (DGT), we will extend DGT to major carboxylates and develop mm and sub-mm chemical imaging workflows. We will screen anion-exchange resins, validate recovery with microdialysis, and evaluate performance via numerical simulations and method comparisons. The approach will be applied to durum wheat genotypes to link exudation to P-acquisition efficiency across the full vegetative phase.

Principal Investigator

Tanja Mimmo

Project Team

Fabio Trevisan, Mirriam Chishala Chibesa, Raphael Tiziani

External project partners

Justus-Liebig-Universität Giessen

Research Focuses

Agricultural Sciences

Funding Type

Joint International Projects / JointProjects D-I

Start and end date

1 Jan 2024
31 Dec 2026