What do plant hormones do?
Answers
Answer:
Auxins are hormones that stimulate growth and are produced in immature parts of plants. They were the first group of hormones studied in plants. Cytokinins are chemicals produced in the roots which stimulate growth and have anti-aging effects. Florists often use cytokinins to keep cut flowers alive and beautiful.
Plant hormones are chemicals or molecules present in plants that cause certain changes in them and helps in adapting to the environment.
They are as follows:
• Auxins: It promotes root growth at very low concentrations. It promote apical dominance and inhibits abcission.
• Gibberellins: It promotes cell enlargement, bolting of some rosette plants, leaf growth while it inhibits root initiation.
• Cytokinins: It promotes cell division in apical meristem and cambium, it promotes fruit growth while it delays leaf senescence.
• Abscisic acid: It generally plays an overall inhibitory role, notably during physiological stress. It promotes bud dormancy, seed dormancy and abcission.
• Ethylene: It breaks seed dormancy and promotes fruit ripening.
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