Question
Distinguish between Gibberellin and Kinin.
Answer
| Gibberellins | Cytokinins |
|---|---|
| Diterpenoid compounds synthesized from isopentenyl pyrophosphate | Adenine derivatives |
| Produced in the shoot and root apical meristems, young leaves, and developing seeds | Produced in the root apical meristem, developing embryos, and young leaves |
| Promote stem elongation and cell division, stimulate seed germination and dormancy breaking, regulate flower development and sex determination, and enhance tolerance to environmental stressors | Stimulate cell division and differentiation, regulate apical dominance by promoting lateral bud growth, delay senescence in leaves and other organs, promote the formation of chloroplasts and thylakoid membranes, and increase tolerance to abiotic stress |
| Used to promote elongation and cell division in stem cuttings and tissue culture | Used to promote shoot formation and organogenesis in tissue culture |
| Gibberellic acid (GA), gibberellin A3 (GA3) | Zeatin, isopentenyl adenine (iP), kinetin |
