Difference between gibberlins and auxins?? #dhruv
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Answer:
Auxin is the first group of plant hormones that was discovered by scientists in 1926. Auxin is mainly present in the form of indole acetic acid (IAA) in plants. However, there are other chemical compounds also found in plants that exhibit functions similar to auxins. One of the major functions of the IAA is to stimulate cell elongation of the young shoots. Primary sites of auxin synthesis are shot apical meristems and young leaves. It has been found that developing seeds and fruits also consist of high levels of auxin. It is transported apoplastically through parenchyma cells and translocate through tracheary elements of xylem and sieve elements of phloem. Transportation is known to be unidirectional (polar/basipetal transport) and always occurs from tip to base.
Gibberellins are a group of plant hormones that promotes plant growth mainly through cell elongation. Gibberellins are primarily produced at meristems of apical buds and roots, young leaves, and developing seeds. Translocation of gibberellin is acropetal i.e. base to top.
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