Root phenolics as potential drivers of preformed defenses and reduced disease susceptibility in a paradigm bread wheat mixture
Authors: Mathieu, L., Chloup, A., Marty, S., Savajols, J., Paysant-Le Roux, C., Launay-Avon, A., Martin, M.-L., Totozafy, J.-C., Perreau, F., Rochepeau, A., Rouveyrol, C., Petriacq, P., Morel, J.-B., Meteignier, L.-V., Ballini, E.
Date: 2026-01-14 · Version: 1
DOI: 10.64898/2026.01.13.699261 Category: Plant Biology
Model Organism: Triticum aestivum
▶ AI Summary
The study created a system that blocks root‑mediated signaling between wheat varieties in a varietal mixture and used transcriptomic and metabolomic profiling to reveal that root chemical interactions drive reduced susceptibility to Septoria tritici blotch, with phenolic compounds emerging as key mediators. Disruption of these root signals eliminates both the disease resistance phenotype and the associated molecular reprogramming.
root-mediated interactions bread wheat Septoria tritici blotch transcriptomics metabolomics