Released: 27-Feb-2026 4:20 AM EST
Decoding a Molecular Brake on Drought Tolerance in Tree Peony
Drought is one of the most damaging environmental stresses limiting plant growth, productivity, and survival. Understanding how plants sense water scarcity and activate internal defense systems is essential for developing more resilient crops and ornamentals. This study reveals a microRNA-based regulatory mechanism that fine-tunes drought tolerance by controlling reactive oxygen species (ROS) homeostasis. Through integrated multi-omics analyses and functional validation, the research identifies a drought-responsive microRNA–gene module that modulates membrane stability, antioxidant enzyme activity, and water-stress sensitivity. By uncovering how small regulatory RNAs influence oxidative stress pathways under drought conditions, the findings provide new molecular insight into plant stress adaptation and offer promising targets for improving drought resistance.
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