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Stomatal and metabolic regulation of photosynthesis in water-stressed leaves
Water stress decreases photosynthesis. Lawlor (pp. 871-885) reviews the evidence for the relative importance of decreased stomatal conductance and metabolic capacity and analyses how stress affects mechanisms. Stomatal limitation decreases but metabolic limitation increases as stress rises. Photosynthetic metabolism is inhibited by decreased ATP synthesis, which has substantial effects on cell metabolism, including amino acid and protein synthesis.
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