From Lab to Field: Harnessing H 2 O 2 ‐Mediated Upregulation of Plant Capacities Under Abiotic Stresses

作者：Hassan Iqbal, Yaning Chen, Syed Turab Raza, Sona Karim, M. Ismail Shareef, Muhammad Waqas · 发表于：Physiologia Plantarum · 年份：2025 · DOI：10.1111/ppl.70488 · 被引用次数：9 · 研究领域：Plant responses to elevated CO2、Plant Stress Responses and Tolerance、Plant responses to water stress

ABSTRACT Climate‐driven abiotic stresses, responsible for approximately 50% of global crop yield losses, are putting agriculture under increasing pressure, demanding smarter ways to strengthen plants' natural defenses beyond genetic modification. Hydrogen peroxide (H 2 O 2 ), long recognized as a key signaling molecule, plays a powerful role in helping plants cope with environmental stress. This review deciphers the mechanistic basis of H 2 O 2 ‐mediated capacity enhancement under diverse stresses (drought, salinity, heavy metals, heat, cold) while also addressing climate‐intensified challenges like waterlogging and ultraviolet (UV) radiation. We spotlight its roles in energy partitioning, hormonal signaling, asset optimization, and internal supply chain dynamics, positioning H 2 O 2 as a multifunctional coordinator of stress resilience. Moving beyond the antioxidant narrative, this review highlights the active role of H 2 O 2 in reorganizing plant responses to real‐world stress. Can a molecule once known only for causing damage now lead the next wave of environmentally friendly, stress‐resilient agriculture? We propose that H 2 O 2 ‐based strategies represent a promising shift toward redox‐guided, non‐genetic interventions bridging laboratory research with practical field applications and opening new pathways for resilient crop management.