Question

What are some examples of plants that uses the hormone auxin, Cytokinins, Gibberellins, Abscisic Acid, and Ethylene, and what benefits do the plant get from using the hormone?

Answer 1

Few examples of plants using these hormones are rice, wheat, mango, guave, broccoli, and sorghum etc. These hormones called phytohormones, regulate the growth, development, and functioning of plants under physiological  conditions throughout there entire life span and regulate every aspect of their existence including defence from biotic and abiotic stresses.

Few functions of the individual hormones are given below:

1. Auxin: is involved in almost all aspects of plant growth and development including gametogenesis, embryogenesis, seedling growth, vascular patterning, and flower development.

2. Cytokinins: regulates cell division, shoot initiation and growth, leaf senescence, apical dominance, sink/source relationships, nutrient uptake, phyllotaxis, and vascular, gametophyte, and embryonic development.

3. Gibberellins regulate stem and root growth, induce mitotic division in the leaves of some plants, and increase seed germination rate.

4. Abscisic acid: regulate  embryo maturation, seed dormancy, germination, cell division and elongation, floral induction, and responses to environmental stresses such as drought, salinity etc.

5.Ethylene: growth, reproduction, and senescence of vegetative and reproductive organs.