You are part of a desert plant research team trying to discover crops that will be productive in arid climates. You discover a plant that produces a guard cell hormone under water-deficit conditions. Most likely the hormone is
A)ABA.
B)GA.
C)IAA.
D)2, 4-D.
E)salicylic acid.

Question

Quizplus · Accepted Answer

ABA (abscisic acid) is a hormone that is known to play a role in regulating plant responses to water stress. When plants are under water-deficit conditions, they produce ABA, which helps to close stomata and reduce water loss through transpiration. Therefore, it is most likely that the plant discovered by the research team produces ABA as a guard cell hormone under water-deficit conditions.

You Are Part of a Desert Plant Research Team Trying