BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Complete Answer: The plant hormone, Abscisic acid inhibits the growth of the plant. Other hormones like Auxin, Gibberellins and cytokinins promote the growth of the plant. Abscisic Acid (ABA) is involved in closure of stomata, but seeds dormancy and inhibit other hormonal actions.

Detailed explanation-2: -The stress hormone abscisic acid (ABA) induces expression of defence genes in many organs, modulates ion homeostasis and metabolism in guard cells, and inhibits germination and seedling growth.

Detailed explanation-3: -Abscisic acid is a plant growth hormone involved in seed dormancy by suppressing seed germination and growth as well as in responses of plants to stress.

Detailed explanation-4: -Abscisic acid (ABA) is accepted as one of the five major classes of natural plant growth regulators. In many tests ABA inhibits growth and metabolism, and enhances degradative changes, as in ripening and senescence.

Detailed explanation-5: -Abscisic acid is a growth inhibitor hormone in plants. It acts as an antagonist to gibberellic acid. It is also referred to as a stress hormone, as it increases tolerance during stress conditions.