Question

Which hormone is not a growth inhibitor - IAA or Abscisic acid?

Answer 1

Growth inhibitor:

1. Growth is not aided by abscisic acid. Instead, it stands for a class of medications called growth inhibitors.
2. IAA (indole acetic acid) promotes plant development.
3. Abscisic acid (ABA), a brain chemical, inhibits seedling growth performance by inducing the expression of defense genes in a number of organs, altering ion homeostasis and enzymatic rate in guard cells.

Functions of IAA:

1. It regulates cell expansion, differentiation, division, etc.
2. IAA promotes apical dominance by inhibiting lateral bud growth.
3. IAA is present in the apical bud that inhibits the growth of lateral or axillary buds.
4. IAA is responsible for phototropism and response to gravity.