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CBSE Class 10 Answered

what is the function of abscisic acid
Asked by | 23 Jun, 2008, 03:52: PM
answered-by-expert Expert Answer

  • Stimulates the closure of stomata (water stress brings about an increase in ABA synthesis).
  • Inhibits shoot growth but will not have as much affect on roots or may even promote growth of roots.
  • Induces seeds to synthesize storage proteins.
  • Inhibits the affect of gibberellins on stimulating de novo synthesis of a-amylase.
  • Has some effect on induction and maintanance of dormancy.
  • Induces gene transcription especially for proteinase inhibitors in response to wounding which may explain an apparent role in pathogen defense.

    • Answered by | 23 Jun, 2008, 09:52: PM

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