C4 photosynthesis pathways in plants

C4 photosynthesis is a highly efficient photosynthetic pathway that evolved in certain plants, like maize and sugarcane, to capture carbon dioxide more effectively under high light, high temperature, and low water conditions. In C4 plants, carbon fixation occurs in specialized cells, effectively concentrating CO2 near the enzyme responsible for sugar synthesis, Rubisco, and reducing photorespiration, a wasteful process. This efficiency allows C4 plants to thrive in tropical climates and contributes to higher biomass production. Agricultural research is exploring ways to introduce C4 traits into C3 crops, such as rice, to improve water-use efficiency and yield, potentially benefiting food production in changing climates.