Auxins promote cell elongation and are present at the shoot tip. When the tendril comes in contact with a support, auxin stimulates faster growth of the cells on the opposite sides. Thus, the tendril coils around the support.
Auxins promote cell elongation and are present at the shoot tip. When the tendril comes in contact with a support, auxin stimulates faster growth of the cells on the opposite sides. Thus, the tendril coils around the support.