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← Nature & AnimalsWhich outcome commonly coincides with reduced water availability affecting stomatal function in plants?
A)Increased photosynthetic efficiency
B)Unregulated nitrogen uptake rates
C)Elevation in leaf surface temperature✓
D)Accelerated nutrient transport capacity
💡 Explanation
When water availability decreases, abscisic acid triggers stomatal closure to conserve water, because transpiration, which cools the leaf, is reduced, leading to elevated leaf surface temperature. Therefore increased surface temperature results, rather than increased photosynthetic efficiency, unregulated nitrogen uptake, or accelerated nutrient transport, which are independent processes.
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