Cited by 546Plant Stress Responses and ToleranceSeed Germination and PhysiologyPlant Water Relations and Carbon Dynamics

Signaling mechanisms in abscisic acid-mediated stomatal closure

Open access
Hsu, Po‐Kai, Dubeaux, Guillaume, Takahashi, Yohei, Schroeder, Julian I.·2021·The Plant Journal

Abstract

Summary: The plant hormone abscisic acid (ABA) plays a central role in the regulation of stomatal movements under water‐deficit conditions. The identification of ABA receptors and the ABA signaling core consisting of PYR/PYL/RCAR ABA receptors, PP2C protein phosphatases and SnRK2 protein kinases has led to studies that have greatly advanced our knowledge of the molecular mechanisms mediating ABA‐induced stomatal closure in the past decade. This review focuses on recent progress in illuminating the regulatory mechanisms of ABA signal transduction, and the physiological importance of basal ABA signaling in stomatal regulation by CO 2 and, as hypothesized here, vapor‐pressure deficit. Furthermore, advances in understanding the interactions of ABA and other stomatal signaling pathways are reviewed here. We also review recent studies investigating the use of ABA signaling mechanisms for the manipulation of stomatal conductance and the enhancement of drought tolerance and water‐use efficiency of plants.

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Crossref · 10.1111/tpj.15067

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  1. Darwin F (1898) Observations on Stomata. Philos. Trans. R Soc. Lond., B, Biol. Sci, 190, 531– 621.

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Authors
Hsu, P., Dubeaux, G., Takahashi, Y., & Schroeder, J. I.
Affiliations
University of California San Diego (US)
Corresponding author
Schroeder, Julian I.
Venue
The Plant Journal
Publisher
Wiley
Published
2020-12-09
Volume
105
Issue
2
Pages
307-321
ISSN
  • 0960-7412 (ISSN-L)
  • 1365-313X
OpenAlex
W3095233590
Cited by
546
References
165
Citations by year
2026: 109 · 2025: 135 · 2024: 106 · 2023: 81 · 2022: 79 · 2021: 36
FWCI
4.22
Type
journal article
Language
en
Open access
Locations
  • The Plant Journal (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institutes of Health (GM060396)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Stress Responses and Tolerance
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Seed Germination and Physiology
  • Physical Sciences › Environmental Science › Global and Planetary Change › Plant Water Relations and Carbon Dynamics
Keywords
abscisic acid, stomatal closure, abscisic acid signaling, PYR/PYL/RCAR receptors, PP2C protein phosphatase, SnRK2 protein kinases, ABA receptors, CO2 signaling, vapor pressure deficit, stomatal conductance, drought tolerance, water use efficiency, plant hormone interaction
MeSH terms
Abscisic Acid, Plant Growth Regulators, Plants, Signal Transduction, Plant Stomata

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