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Question
Write the physiological effects of Cytokinins.
Answer in Brief
Solution
- Cytokinin promotes cell division in the presence of auxin (IAA).
- Induces cell enlargement associated with IAA and gibberellins
- Cytokinin can break the dormancy of certain light-sensitive seeds like tobacco and induces seed germination.
- Cytokinin promotes the growth of lateral bud in the presence of apical bud.
- Application of cytokinin delays the process of aging by nutrient mobilization. It is known as the Richmond Lang effect.
- Cytokinin:
- increases rate protein synthesis
- induces the formation of inter-fascicular cambium
- overcomes apical dominance
- induces the formation of new leaves, chloroplast and lateral shoots.
- Plants accumulate solutes very actively with the help of cytokinins.
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