Extreme heat stress can reduce plant photosynthetic and transpiration efficiencies and negatively impact plant root development, which collectively can negatively impact yield. The decline in the photosynthetic rate under both heat and water stresses are frequently attributed to
lowered internal plant CO2,
inhibition of photosynthetic enzymes (e.g., Rubisco) and
synthesis of ATP (adenosine triphosphate), which produces chemical energy that is needed for regulating plant biochemical reactions.
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Answer:
Extreme heat stress can reduce plant photosynthetic and transpiration efficiencies and negatively impact plant root development, which collectively can negatively impact yield. The decline in the photosynthetic rate under both heat and water stresses are frequently attributed to
lowered internal plant CO2,
inhibition of photosynthetic enzymes (e.g., Rubisco) and
synthesis of ATP (adenosine triphosphate), which produces chemical energy that is needed for regulating plant biochemical reactions.