Question

Write short notes on:

Cytokinins

Answer 1

• Cytokinins are plant growth hormones that promote cell division (cytokinesis).
• They are mainly produced in the root tips and are transported to other parts of the plant.
• They stimulate the growth of lateral (side) buds and help overcome apical dominance.
• They delay the ageing (senescence) of leaves by maintaining chlorophyll and proteins.
• They promote shoot development and help in the growth of fruits and seeds.
• In plant tissue culture, cytokinins are widely used to induce shoot formation.