Parallels between drought and flooding: An integrated framework for plant eco-physiological responses to water stress.

Autor: Chen S; Computational Developmental Biology, Department of Biology Utrecht University Utrecht The Netherlands.; Centre for Complex System Studies Utrecht University Utrecht The Netherlands., Ten Tusscher KHWJ; Computational Developmental Biology, Department of Biology Utrecht University Utrecht The Netherlands., Sasidharan R; Plant Stress Resilience, Institute of Environmental Biology Utrecht University Utrecht The Netherlands., Dekker SC; Environmental Sciences, Copernicus Institute of Sustainable Development Utrecht University Utrecht The Netherlands., de Boer HJ; Environmental Sciences, Copernicus Institute of Sustainable Development Utrecht University Utrecht The Netherlands.
Jazyk: angličtina
Zdroj: Plant-environment interactions (Hoboken, N.J.) [Plant Environ Interact] 2023 Jun 30; Vol. 4 (4), pp. 175-187. Date of Electronic Publication: 2023 Jun 30 (Print Publication: 2023).
DOI: 10.1002/pei3.10117
Abstrakt: Drought and flooding occur at opposite ends of the soil moisture spectrum yet their resulting stress responses in plants share many similarities. Drought limits root water uptake to which plants respond with stomatal closure and reduced leaf gas exchange. Flooding limits root metabolism due to soil oxygen deficiency, which also limits root water uptake and leaf gas exchange. As drought and flooding can occur consecutively in the same system and resulting plant stress responses share similar mechanisms, a single theoretical framework that integrates plant responses over a continuum of soil water conditions from drought to flooding is attractive. Based on a review of recent literature, we integrated the main plant eco-physiological mechanisms in a single theoretical framework with a focus on plant water transport, plant oxygen dynamics, and leaf gas exchange. We used theory from the soil-plant-atmosphere continuum modeling as "backbone" for our framework, and subsequently incorporated interactions between processes that regulate plant water and oxygen status, abscisic acid and ethylene levels, and the resulting acclimation strategies in response to drought, waterlogging, and complete submergence. Our theoretical framework provides a basis for the development of mathematical models to describe plant responses to the soil moisture continuum from drought to flooding.
Competing Interests: All co‐authors have no conflict of interest to declare.
(© 2023 The Authors. Plant‐Environment Interactions published by New Phytologist Foundation and John Wiley & Sons Ltd.)
Databáze: MEDLINE
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