Photosynthetic Reprogramming Enhancing Carbon Fixation in Crops through Synthetic Biology

Photosynthetic efficiency in crops is a major limiting factor in agricultural productivity and climate resilience. Synthetic biology provides novel approaches to reprogram photosynthesis by engineering carbon fixation pathways, optimizing RuBisCO efficiency, and introducing synthetic carbon-concentrating mechanisms (CCMs). Recent advancements include genome editing for enhanced CO₂ assimilation, incorporation of artificial photosynthetic circuits, and chloroplast genome engineering to improve light-harvesting efficiency. This review explores cutting-edge developments in synthetic biology-driven photosynthetic reprogramming, their potential to increase crop yield, and their role in climate adaptation. We discuss applications in sustainable agriculture, the mitigation of photorespiration, and the biotechnological challenges in translating lab-based innovations into real-world crop systems. Future perspectives include the integration of computational modeling, machine learning-assisted pathway design, and synthetic organelle engineering to further enhance photosynthetic efficiency in food production systems.