University of Tasmania
Browse
Sussmilch 2017 JIPB Accepted.pdf (729.62 kB)

What are the evolutionary origins of stomatal responses to abscisic acid in land plants?

Download (729.62 kB)
journal contribution
posted on 2023-05-19, 05:33 authored by Frances SussmilchFrances Sussmilch, Timothy BrodribbTimothy Brodribb, McAdam, SAM
The evolution of active stomatal closure in response to leaf water deficit, mediated by the hormone abscisic acid (ABA), has been the subject of recent debate. Two different models for the timing of the evolution of this response recur in the literature. A single-step model for stomatal control suggests that stomata evolved active, ABA-mediated control of stomatal aperture, when these structures first appeared, prior to the divergence of bryophyte and vascular plant lineages. In contrast, a gradualistic model for stomatal control proposes that the most basal vascular plant stomata responded passively to changes in leaf water status. This model suggests that active ABA-driven mechanisms for stomatal responses to water status instead evolved after the divergence of seed plants, culminating in the complex, ABA-mediated responses observed in modern angiosperms. Here we review the findings that form the basis for these two models, including recent work that provides critical molecular insights into resolving this intriguing debate, and find strong evidence to support a gradualistic model for stomatal evolution.

Funding

Australian Research Council

History

Publication title

Journal of Integrative Plant Biology

Volume

59

Issue

4

Pagination

240-260

ISSN

1672-9072

Department/School

Tasmanian Institute of Agriculture (TIA)

Publisher

Wiley-Blackwell Publishing Asia

Place of publication

155 Cremorne St, Richmond, VIC 3121 Australia

Rights statement

Copyright 2017 Institute of Botany, Chinese Academy of Sciences. This peer reviewd version of an article article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.

Repository Status

  • Open

Socio-economic Objectives

Expanding knowledge in the biological sciences

Usage metrics

    University Of Tasmania

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC