Question

What are anti transpirants? Give an example.

Answer 1

There are certain chemicals and molecules which are applied on the surface of the leaves of the trees to reduce the rate of transpiration. There is a reduction in the size or the number of the stomata. Sometimes, there is blockage of the stomatal pores which reduce the water loss from the plants. These chemicals are known as anti-transpirants. There are two common examples of anti-transpirants are abscisic acid (ABA) and Phenyl mercuric acetate (PMA). They act by the partial closing of the stomata to decrease the rate of transpiration.