Highlight how the balance and interaction between different hormones regulate plant growth and development
Ashalatha
Growth and development in plants are regulated by a linear sequence of hormones which act as chemical signals that influence the cellular processes and reactions to the environment. Plant hormones such as auxins, gibberellins, cytokinins, ethylene and abscisic acid work in cooperation and in opposition to control various activities like cell enlargement, cell division, differentiation and maturation. Auxins used mostly are the ones that affect the elongation of cells and apical dominance with cytokines for shoot formation that affects cell division. GAs are essential for seed germination and stem growth the activity of which can suppress the inhibitory influence of ABA controlling stress reactions and seed dormancy. Ethylene is involved in fruit maturation and probably in mechanical stimulation, it being associated with auxins’ actions that control the shedding of leaves and the fading of flowers. Growth and development of plant cells imply a certain dynamic equilibrium between these hormones in order to meet the environmental challenges. This paper presents an overview of the current awareness on hormonal interactions in plants, continued research development on molecular level and its implication to agriculture.
Ashalatha. Highlight how the balance and interaction between different hormones regulate plant growth and development. J Med Plants Stud 2015;3(3):47-52.