Role of Reactive Oxygen Species and Hormones in Plant Responses to Temperature Changes
| Autor: | Gerald A. Tuskan, Timothy J. Tschaplinski, Jin-Gui Chen, Amith R Devireddy, Wellington Muchero |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Cell signaling
QH301-705.5 hormone molecular mechanisms Review acclimation medicine.disease_cause Acclimatization Catalysis Inorganic Chemistry heat stress Metabolomics Plant Growth Regulators Stress Physiological medicine Physical and Theoretical Chemistry Biology (General) Molecular Biology QD1-999 Spectroscopy chemistry.chemical_classification Reactive oxygen species Organic Chemistry fungi Temperature food and beverages ROS General Medicine Plants Adaptation Physiological Computer Science Applications Cell biology Crosstalk (biology) Chemistry chemistry cold stress Signal transduction Reactive Oxygen Species signal integration Oxidative stress signal transduction Hormone |
| Zdroj: | International Journal of Molecular Sciences, Vol 22, Iss 8843, p 8843 (2021) International Journal of Molecular Sciences |
| ISSN: | 1661-6596 1422-0067 |
| Popis: | Temperature stress is one of the major abiotic stresses that adversely affect agricultural productivity worldwide. Temperatures beyond a plant’s physiological optimum can trigger significant physiological and biochemical perturbations, reducing plant growth and tolerance to stress. Improving a plant’s tolerance to these temperature fluctuations requires a deep understanding of its responses to environmental change. To adapt to temperature fluctuations, plants tailor their acclimatory signal transduction events, and specifically, cellular redox state, that are governed by plant hormones, reactive oxygen species (ROS) regulatory systems, and other molecular components. The role of ROS in plants as important signaling molecules during stress acclimation has recently been established. Here, hormone-triggered ROS produced by NADPH oxidases, feedback regulation, and integrated signaling events during temperature stress activate stress-response pathways and induce acclimation or defense mechanisms. At the other extreme, excess ROS accumulation, following temperature-induced oxidative stress, can have negative consequences on plant growth and stress acclimation. The excessive ROS is regulated by the ROS scavenging system, which subsequently promotes plant tolerance. All these signaling events, including crosstalk between hormones and ROS, modify the plant’s transcriptomic, metabolomic, and biochemical states and promote plant acclimation, tolerance, and survival. Here, we provide a comprehensive review of the ROS, hormones, and their joint role in shaping a plant’s responses to high and low temperatures, and we conclude by outlining hormone/ROS-regulated plant responsive strategies for developing stress-tolerant crops to combat temperature changes. |
| Databáze: | OpenAIRE |
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