Revisiting the Basal Role of ABA – Roles Outside of Stress

Takuya Yoshida, Alexander Christmann, Kazuko Yamaguchi-Shinozaki, Erwin Grill, Alisdair R. Fernie

Research output: Contribution to journalReview articlepeer-review

168 Scopus citations

Abstract

The physiological roles of abscisic acid (ABA) as a stress hormone in plant responses to water shortage, including stomatal regulation and gene expression, have been well documented. However, less attention has been paid to the function of basal ABA synthesized under well-watered conditions in recent studies. In this review, we summarize progress in the understanding of how low concentrations of ABA are perceived at the molecular level and how its signaling affects plant metabolism and growth under nonstressed conditions. We also discuss the dual nature of ABA in acting as an inhibitor and activator of plant growth and development.

Original languageEnglish
Pages (from-to)625-635
Number of pages11
JournalTrends in Plant Science
Volume24
Issue number7
DOIs
StatePublished - Jul 2019

Keywords

  • ABA
  • ABA coreceptors
  • leaf growth
  • nonstress conditions
  • primary metabolism

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