Innovations in Improving Abiotic Stress Resilience of Agronomic Crops

The field of plant abiotic stress physiology explores how environmental extremes impact the fundamental biological processes of agronomic crops. In recent years, factors such as climate change, heavy metal pollution, soil salinization, and recurring droughts have intensified, presenting unprecedented challenges to crop growth and productivity worldwide. Central physiological pathways—including photosynthesis, nutrient and water acquisition, and cellular metabolic stability—are frequently disrupted under stress, posing critical risks to global food supply and calling for urgent research. While significant progress has been made in identifying how crops respond to single and combined abiotic stresses, many questions remain regarding the integration of physiological responses, adaptive trade-offs, and the interplay of biochemical defense systems in diverse crop species.Recent advances have shed light on the roles of osmotic regulation, antioxidant defense, stress signaling networks, and detoxification pathways in enabling plants to withstand adverse conditions. For example, studies have elucidated the complex hormonal and genetic pathways that mediate plant adaptation to drought or salinity, as well as the dynamic responses to oxidative stress caused by heavy metals or elevated temperatures. However, gaps persist in fully comprehending how these defense strategies are regulated and coordinated in real agricultural environments, particularly under the multifactorial nature of field stresses. There is an urgent need for integrative research that combines physiological, biochemical, and molecular approaches, connecting bench findings to practical crop improvement.This Research Topic aims to deepen our understanding of the physio-biochemical and adaptive mechanisms underlying abiotic stress resilience in agronomic crops. We seek to uncover the fundamental responses that confer tolerance to drought, salinity, heat, heavy metals, and related environmental hazards. By focusing on these mechanisms, the research will contribute insights crucial for breeding stress-tolerant crop varieties and developing holistic management strategies, ultimately supporting stable crop yields and global food security amid environmental uncertainty.The boundaries of this Research Topic encompass the physiological and biochemical responses of major agronomic crops to key abiotic stresses, while emphasizing integrative, multi-disciplinary approaches. We encourage submissions that span laboratory, greenhouse, and field studies, but the emphasis remains on physiological function and stress adaptation rather than purely molecular or ecological perspectives.To gather further insights in the abiotic stress physiology of crops, we welcome articles addressing, but not limited to, the following themes:Adaptive physiological and biochemical mechanisms under drought, salinity, and heat stressImpact of heavy metal contamination on crop metabolism and stress signalingAntioxidant defense responses and oxidative stress managementStrategies for enhancing stress tolerance through crop improvement and management practicesIntegrating molecular, physiological, and agronomic approaches for sustainable agricultureEffects of combined or sequential abiotic stresses on crop performanceNovel tools and experimental approaches for studying abiotic stress in cropsWe invite original research articles, review papers, mini-reviews, and short communications. Topic editors: Abdullah Shalmani, Muzammal Rehman, Hongyang Wang Source: https://www.frontiersin.org/research-topics/78270/innovations-in-improving-abiotic-stress-resilience-of-agronomic-crops