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Systemic signaling during abiotic stress combination in plants
Extreme environmental conditions, such as heat, salinity, and decreased water availability, can have a devastating impact on plant growth and productivity, potentially resulting in the collapse of entire ecosystems. Stress-induced systemic signaling and systemic acquired acclimation play canonical r...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
National Academy of Sciences
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7306788/ https://www.ncbi.nlm.nih.gov/pubmed/32471943 http://dx.doi.org/10.1073/pnas.2005077117 |
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author | Zandalinas, Sara I. Fichman, Yosef Devireddy, Amith R. Sengupta, Soham Azad, Rajeev K. Mittler, Ron |
author_facet | Zandalinas, Sara I. Fichman, Yosef Devireddy, Amith R. Sengupta, Soham Azad, Rajeev K. Mittler, Ron |
author_sort | Zandalinas, Sara I. |
collection | PubMed |
description | Extreme environmental conditions, such as heat, salinity, and decreased water availability, can have a devastating impact on plant growth and productivity, potentially resulting in the collapse of entire ecosystems. Stress-induced systemic signaling and systemic acquired acclimation play canonical roles in plant survival during episodes of environmental stress. Recent studies revealed that in response to a single abiotic stress, applied to a single leaf, plants mount a comprehensive stress-specific systemic response that includes the accumulation of many different stress-specific transcripts and metabolites, as well as a coordinated stress-specific whole-plant stomatal response. However, in nature plants are routinely subjected to a combination of two or more different abiotic stresses, each potentially triggering its own stress-specific systemic response, highlighting a new fundamental question in plant biology: are plants capable of integrating two different systemic signals simultaneously generated during conditions of stress combination? Here we show that plants can integrate two different systemic signals simultaneously generated during stress combination, and that the manner in which plants sense the different stresses that trigger these signals (i.e., at the same or different parts of the plant) makes a significant difference in how fast and efficient they induce systemic reactive oxygen species (ROS) signals; transcriptomic, hormonal, and stomatal responses; as well as plant acclimation. Our results shed light on how plants acclimate to their environment and survive a combination of different abiotic stresses. In addition, they highlight a key role for systemic ROS signals in coordinating the response of different leaves to stress. |
format | Online Article Text |
id | pubmed-7306788 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | National Academy of Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-73067882020-06-25 Systemic signaling during abiotic stress combination in plants Zandalinas, Sara I. Fichman, Yosef Devireddy, Amith R. Sengupta, Soham Azad, Rajeev K. Mittler, Ron Proc Natl Acad Sci U S A Biological Sciences Extreme environmental conditions, such as heat, salinity, and decreased water availability, can have a devastating impact on plant growth and productivity, potentially resulting in the collapse of entire ecosystems. Stress-induced systemic signaling and systemic acquired acclimation play canonical roles in plant survival during episodes of environmental stress. Recent studies revealed that in response to a single abiotic stress, applied to a single leaf, plants mount a comprehensive stress-specific systemic response that includes the accumulation of many different stress-specific transcripts and metabolites, as well as a coordinated stress-specific whole-plant stomatal response. However, in nature plants are routinely subjected to a combination of two or more different abiotic stresses, each potentially triggering its own stress-specific systemic response, highlighting a new fundamental question in plant biology: are plants capable of integrating two different systemic signals simultaneously generated during conditions of stress combination? Here we show that plants can integrate two different systemic signals simultaneously generated during stress combination, and that the manner in which plants sense the different stresses that trigger these signals (i.e., at the same or different parts of the plant) makes a significant difference in how fast and efficient they induce systemic reactive oxygen species (ROS) signals; transcriptomic, hormonal, and stomatal responses; as well as plant acclimation. Our results shed light on how plants acclimate to their environment and survive a combination of different abiotic stresses. In addition, they highlight a key role for systemic ROS signals in coordinating the response of different leaves to stress. National Academy of Sciences 2020-06-16 2020-05-29 /pmc/articles/PMC7306788/ /pubmed/32471943 http://dx.doi.org/10.1073/pnas.2005077117 Text en Copyright © 2020 the Author(s). Published by PNAS. http://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0/This open access article is distributed under Creative Commons Attribution License 4.0 (CC BY) (http://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Biological Sciences Zandalinas, Sara I. Fichman, Yosef Devireddy, Amith R. Sengupta, Soham Azad, Rajeev K. Mittler, Ron Systemic signaling during abiotic stress combination in plants |
title | Systemic signaling during abiotic stress combination in plants |
title_full | Systemic signaling during abiotic stress combination in plants |
title_fullStr | Systemic signaling during abiotic stress combination in plants |
title_full_unstemmed | Systemic signaling during abiotic stress combination in plants |
title_short | Systemic signaling during abiotic stress combination in plants |
title_sort | systemic signaling during abiotic stress combination in plants |
topic | Biological Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7306788/ https://www.ncbi.nlm.nih.gov/pubmed/32471943 http://dx.doi.org/10.1073/pnas.2005077117 |
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