A team of biologists at Stanford University conducted a study on the efficiency of photosynthesis in different plant species under varying light conditions.
• C4 plants, such as corn and sugarcane, were found to be significantly more efficient at photosynthesis in high-temperature, high-light environments compared to C3 plants like wheat and rice.
• The key difference lies in how each plant type handles carbon fixation: C4 plants use a specialized anatomy called Kranz anatomy to concentrate CO₂ around the enzyme RuBisCO.
• This concentration mechanism reduces photorespiration — a wasteful process that can decrease photosynthetic efficiency by up to 25% in C3 plants.
• The researchers suggest that engineering C4 traits into C3 crops could dramatically increase global food production.
Photosynthesis Efficiency
A team of biologists at Stanford University conducted a study on the efficiency of photosynthesis in different plant species under varying light conditions.
• C4 plants, such as corn and sugarcane, were found to be significantly more efficient at photosynthesis in high-temperature, high-light environments compared to C3 plants like wheat and rice.
• The key difference lies in how each plant type handles carbon fixation: C4 plants use a specialized anatomy called Kranz anatomy to concentrate CO₂ around the enzyme RuBisCO.
• This concentration mechanism reduces photorespiration — a wasteful process that can decrease photosynthetic efficiency by up to 25% in C3 plants.
• The researchers suggest that engineering C4 traits into C3 crops could dramatically increase global food production.
According to the passage, what is the primary advantage of C4 plants over C3 plants?
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