Tomato Systemin induces resistance against Plectosphaerella cucumerina in Arabidopsis through the induction of phenolic compounds and priming of tryptophan derivatives
Julia Pastor-Fernández, Paloma Sánchez‐Bel, Jordi Gamir, Victoria Pastor, Neus Sanmartín, Miguel Cerezo, Silvia Andrés-Moreno, Vı́ctor Flors
Abstract
(Sys-IR) showed that phenolic and indolic compounds were the most representative groups in the Systemin metabolic fingerprint. Lack of flavonoids resulted in the impairment of Sys-IR. On the other hand, some indolic compounds showed a priming profile and were also essential for functional Sys-IR. Evidence presented here shows that plants can sense heterologous peptides from other species as danger signals driving the participation of common protein cascades activated in the PTI and promoting enhanced resistance against necrotrophic fungus.
Topics & Concepts
BiologyArabidopsisPriming (agriculture)Plant defense against herbivoryBiochemistryPlant disease resistanceCell biologyMutantBotanyGeneGerminationPlant-Microbe Interactions and ImmunityPlant Parasitism and ResistancePlant Stress Responses and Tolerance