When a plant is experiencing water stress,
A) auxin will shut down vessel elements.
B) gibberellins will stimulate growth of root hairs.
C) abscisic acid will stimulate closure of stomata.
D) ethylene will increase water flow in vessel elements.
E) cytokinins will stimulate elongation of stems and growth of new leaves.

Question

Quizplus · Accepted Answer

Abscisic acid (ABA) is known to play a crucial role in plant responses to stress, including water stress. One of its key functions during drought conditions is to stimulate the closure of stomata, which are small openings on the surface of leaves. Closing stomata helps to reduce water loss through transpiration, thereby conserving water within the plant.

When a Plant Is Experiencing Water Stress