Abdhul Sameed, Siyar Akbar, Umar Ashraf, Lateif M Aslam, 2026. "Root-System Architecture and Metabolic Adaptation For Climate-Resilient And High-Yield Crops" ESP International Journal of Emerging Multidisciplinary Research [ESP-IJEMR] Volume 2, Issue 2: 42-56.
Climate change, growing population, reduced cultivable land area, soil degradation and scarcity of water and nutrients have posed serious challenges to the global agriculture. This poses a significant challenge for crop productivity and global food security, thus necessitates the urgent scientific pursuit of climate-resilient high yielding crops. Root-system architecture (RSA) and metabolic adaptation have recently surfaced as key traits in terms of plant survival and fitness, stress tolerance, measures of nutrient-use efficiency with implications for sustainable crop productivity. Root systems exist as the first interface between plants and soil, controlling water uptake, mineral acquisition, anchorage and interacting with soil microorganisms. At the same time, plants use metabolic adaptation to facilitate cellular homeostasis and osmotic balance, energy production as well as stress-responsive signalling under adverse environmental conditions. The interaction between RSA and MP leads to the dynamic composition of integrated adaptive networks that influence crop performance in a wide range of stress conditions (drought, salinity, heat flooding, and nutrient-deficient conditions).
Root-system architecture refers to the three-dimensional distribution and developmental arrangement of roots in a soil profile, which involves the root depth (scale), root angle (root-angled daughters), lateral root frequency, definition of root traits: Ogawa Root hair formation, and branching points. Changes in RSA directly influence a crops efficiency to forage soil resources. This allows deep and extensive root systems to better acquire water during drought periods, while shallow but profusely branched roots can efficiently uptake nutrients in the nutrient-rich upper layer of soil. Current knowledge of root biology, genomics and Root Phenotyping combined with hormone analyses have provided powerful new tools for identifying QTLs, genes and hormonal pathways controlling root growth in relation to environmental responsiveness. This is done via interplay of hormones, including axis, cytokines, abscise acid, ethylene and gibberellins that together coordinate root development in response to a wide range of environmental signals permitting plants to gain advantage under variable environments. Manipulation of RSA traits has been found to significantly enhance the adaptability and stability of cereal, legume, and root crop yield under climate stress (1–4). (MDPI)
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Root System Architecture (RSA), Metabolic Adaptation Climate Resilience, Crop Productivity Abiotic Stress Tolerance Drought Resistance Nutrient-Use Efficiency Metabolomics Sustainable Agriculture Climate-smart Crops