ABA signal transduction

Curr Opin Plant Biol. 1998 Oct;1(5):412-8. doi: 10.1016/s1369-5266(98)80265-3.


Recent advances in the study of abscisic acid signal transduction include the identification of cyclic ADP-ribose as a central mediator of abscisic acid responses. The characterisation of type 2C protein phosphatases, ABI1 and ABI2, implicates negative control and redundant action on the signal pathway of this hormone. In addition, abscisic acid-mediated inhibition of gibberellin-stimulated responses seems to depend on the activation of a phospholipase D during induction of alpha-amylase in barley aleurone cells as well as on a putative acetyltransferase involved in elongation growth.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Abscisic Acid / metabolism*
  • Adenosine Diphosphate Ribose / analogs & derivatives
  • Adenosine Diphosphate Ribose / metabolism
  • Cyclic ADP-Ribose
  • Models, Biological
  • Plant Growth Regulators / metabolism*
  • Plants / metabolism
  • Signal Transduction*


  • Plant Growth Regulators
  • Cyclic ADP-Ribose
  • Adenosine Diphosphate Ribose
  • Abscisic Acid