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Surviving a dry future: abscisic acid (ABA)-mediated plant mechanisms for conserving water under low humidity

Citation

Sussmilch, F and McAdam, SAM, Surviving a dry future: abscisic acid (ABA)-mediated plant mechanisms for conserving water under low humidity, Plants, 6, (4) Article 54. ISSN 2223-7747 (2017) [Refereed Article]


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Copyright Statement

Copyright 2017 The Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

DOI: doi:10.3390/plants6040054

Abstract

Angiosperms are able to respond rapidly to the first sign of dry conditions, a decrease in air humidity, more accurately described as an increase in the vapor pressure deficit between the leaf and the atmosphere (VPD), by abscisic acid (ABA)-mediated stomatal closure. The genes underlying this response offer valuable candidates for targeted selection of crop varieties with improved drought tolerance, a critical goal for current plant breeding programs, to maximize crop production in drier and increasingly marginalized environments, and meet the demands of a growing population in the face of a changing climate. Here, we review current understanding of the genetic mechanisms underpinning ABA-mediated stomatal closure, a key means for conserving water under dry conditions, examine how these mechanisms evolved, and discuss what remains to be investigated.

Item Details

Item Type:Refereed Article
Keywords:stomata, humidity, vapor pressure deficit (VPD), abscisic acid (ABA), 9-cis-epoxycarotenoid dioxygenase (NCED), water deficit stress, evolution, sensing water status
Research Division:Biological Sciences
Research Group:Evolutionary Biology
Research Field:Biological Adaptation
Objective Division:Environment
Objective Group:Climate and Climate Change
Objective Field:Climate Change Adaptation Measures
UTAS Author:Sussmilch, F (Dr Frances Sussmilch)
UTAS Author:McAdam, SAM (Dr Scott McAdam)
ID Code:123711
Year Published:2017
Web of Science® Times Cited:7
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2018-01-20
Last Modified:2018-12-13
Downloads:48 View Download Statistics

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