Hydrogen Peroxide in Cereal Crops Under Abiotic Stress: Mechanistic Modules, Evidence Tiers, and Translational Opportunities
Hydrogen peroxide (H2O2) is increasingly recognized as a spatially and temporally encoded redox signal, and as a trigger of oxidative stress rather than a by‐product of it. In cereal crops, however, the mechanisms that convert H2O2 production into selective physiological outputs remain unevenly resolved. This review ex...