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The upcoming discussion will update you about the differences between Auxin and Gibberellin.
Difference # Auxin:
1. Auxin has a single or double unsaturated ring structure and a side chain.
2. Auxin transport is basipetal.
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3. It promotes growth of shoot segments,
4. Auxin brings about apical dominance.
5. Genetically dwarf shoots do not elongate.
6. Normal concentration of auxin inhibits root growth.
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7. It does not cause bolting.
8. It is essential for callus growth.
9. Auxin does not help in breaking seed and bud dormancy.
10. Natural auxin has no effect in induction of lowering in long day plants and plants requiring vernalisation.
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11. It promotes root formation.
12. Auxin does not mobilise food reserve during seed germination.
13. Auxin has feminising effect in some plants.
Difference # Gibberellin:
1. Gibberellin possesses a gibbane ring structure.
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2. Gibberellin transport is both basipetal and acropetal.
3. It promotes growth of intact stem as well as leaves.
4. Gibberellin has no role in apical dominance.
5. Genetically dwarf shoots often elongate after gibberellin treatment.6. Gibberellin has no such effect.
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7. It causes bolting in rosette plants.
8. It has no role in callus growth.
9. Gibberellin is required in germination of most seeds and breaking of bud dormancy.
10. Gibberellin promotes flowering in tang day plants and plants requiring vernalisation.
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11. Gibberellin does not promote rooting.
12. Gibberellin mobilises food reserve during seed germination by inducing formation of hydrolytic enzymes.
13. Gibberellin has masculinizing effect in some plants.
