Systemic signalling, and the synchronization of stomatal response

McLachlan, Deirdre H.

doi:10.1111/nph.16253

Cited by 13 publications

(9 citation statements)

References 15 publications

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“…In a recently reported novel function of the ROS wave, there is coordination between different induced stresses and the whole-plant systemic stomatal response [ 21 , 22 , 23 ]. The ROS wave is a cell-to-cell auto-propagating process of ROS production mediated by the respiratory burst homolog D (RBOHD) protein [ 4 , 14 , 21 , 24 ]. Once triggered in a single cell, it causes the enhanced production of ROS by the cell.…”

Section: Ros In Disease Resistancementioning

confidence: 99%

“…In cell signaling, the ROS molecules are highly versatile because of their diverse properties that include sites of production, different levels of reactivity and crossing potential to the biological membrane [ 1 , 61 , 88 ]. These molecules were first used by the cells to detect the harmful levels of atmospheric oxygen, or to regulate different metabolic activities, but they have evolved as potent signaling molecules to regulate almost all aspects of life in plants, animals and other eukaryotic organisms [ 24 ]. In the plant kingdom, these molecules regulate cell differentiation and development, stress signaling, plant interactions, systemic response, cell death and redox potentials [ 19 , 89 , 90 , 91 , 92 ].…”

Section: Impact Of Ros On Cell Biochemistrymentioning

confidence: 99%

“…This class of enzymes is also found in other cell organelles, such as endoplasmic reticulum (ER), vacuoles, nuclei, mitochondria or peroxisomes, and are mostly regulated via calcium and other phosphorylation/dephosphorylation reactions ( Figure 4 ) [ 25 , 94 ]. In addition, ROS levels were mediated by peroxisomes at the apoplast as well as in the chloroplast, mitochondria and nuclei [ 1 , 24 , 89 ]. Therefore, a balance occurs in ROS production between the metabolically generated levels, the ROS diffusion rate and reactivity and the removal and perception in different cellular organelles, which on integration, generate a site-specific signaling system to regulate the antioxidant process and overall determine the cell-specific response to the stimulus [ 24 ].…”

Section: Impact Of Ros On Cell Biochemistrymentioning

confidence: 99%

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Reactive Oxygen Species in Plants: From Source to Sink

et al. 2022

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Reactive oxygen species (ROS, partial reduction or derivatives of free radicals) are highly reactive, dangerous and can cause oxidative cell death. In addition to their role as toxic by-products of aerobic metabolism, ROS play a role in the control and regulation of biological processes such as growth, the cell cycle, programmed cell death, hormone signaling, biotic and abiotic stress reactions and development. ROS always arise in plants as a by-product of several metabolic processes that are located in different cell compartments, or as a result of the inevitable escape of electrons to oxygen from the electron transport activities of chloroplasts, mitochondria and plasma membranes. These reactive species are formed in chloroplasts, mitochondria, plasma membranes, peroxisomes, apoplasts, the endoplasmic reticulum and cell walls. The action of many non-enzymatic and enzymatic antioxidants present in tissues is required for efficient scavenging of ROS generated during various environmental stressors. The current review provides an in-depth look at the fate of ROS in plants, a beneficial role in managing stress and other irregularities. The production sites are also explained with their negative effects. In addition, the biochemical properties and sources of ROS generation, capture systems, the influence of ROS on cell biochemistry and the crosstalk of ROS with other signaling molecules/pathways are discussed.

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Section: Ros In Disease Resistancementioning

confidence: 99%

Section: Impact Of Ros On Cell Biochemistrymentioning

confidence: 99%

Section: Impact Of Ros On Cell Biochemistrymentioning

confidence: 99%

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Reactive Oxygen Species in Plants: From Source to Sink

et al. 2022

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“…SAA to heat stress is associated with activation of the ROS wave and transient accumulation of ABA in systemic tissues, suggesting that interactions between ABA and RBOHD‐dependent ROS production is involved in long‐distance signaling in response to heat stress (Suzuki et al ., 2013; Suzuki and Katano, 2018). In line with this study, local application of heat stress to a single leaf triggered the ROS wave and induced systemic stomatal opening responses (Devireddy et al ., 2020; McLachlan, 2020; Zandalinas et al ., 2020a).…”

Section: Hormone and Ros Interactions During Heat Stressmentioning

confidence: 99%

Integration of reactive oxygen species and hormone signaling during abiotic stress

et al. 2020

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Summary Each year, abiotic stress conditions such as drought, heat, salinity, cold and particularly their different combinations, inflict a heavy toll on crop productivity worldwide. The effects of these adverse conditions on plant productivity are becoming ever more alarming in recent years in light of the increased rate and intensity of global climatic changes. Improving crop tolerance to abiotic stress conditions requires a deep understanding of the response of plants to changes in their environment. This response is dependent on early and late signal transduction events that involve important signaling molecules such as reactive oxygen species (ROS), different plant hormones and other signaling molecules. It is the integration of these signaling events, mediated by an interplay between ROS and different plant hormones that orchestrates the plant response to abiotic stress and drive changes in transcriptomic, metabolic and proteomic networks that lead to plant acclimation and survival. Here we review some of the different studies that address hormone and ROS integration during the response of plants to abiotic stress. We further highlight the integration of ROS and hormone signaling during early and late phases of the plant response to abiotic stress, the key role of respiratory burst oxidase homologs in the integration of ROS and hormone signaling during these phases, and the involvement of hormone and ROS in systemic signaling events that lead to systemic acquired acclimation. Lastly, we underscore the need to understand the complex interactions that occur between ROS and different plant hormones during stress combinations.

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“…One of the novel functions of the ROS wave, recently reported, is to coordinate the whole‐plant systemic stomatal response of plants to different stresses (Devireddy et al , , ; McLachlan, ). In response to light stress affecting a single leaf, the ROS wave was shown to coordinate a whole‐plant systemic stomatal closure response (Devireddy et al , ).…”

Section: The Ros Wave a Rapid And Widespread Systemic Signal Triggermentioning

confidence: 99%

Rapid systemic signaling during abiotic and biotic stresses: is the ROS wave master of all trades?

2020

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Rapidly communicating the perception of an abiotic stress event, wounding or pathogen infection, from its initial site of occurrence to the entire plant, i.e. rapid systemic signaling, is essential for successful plant acclimation and defense. Recent studies highlighted an important role for several rapid whole-plant systemic signals in mediating plant acclimation and defense during different abiotic and biotic stresses. These include calcium, reactive oxygen species (ROS), hydraulic and electric waves. Although the role of some of these signals in inducing and coordinating whole-plant systemic responses was demonstrated, many questions related to their mode of action, routes of propagation and integration remain unanswered. In addition, it is unclear how these signals convey specificity to the systemic response, and how are they integrated under conditions of stress combination. Here we highlight many of these questions, as well as provide a proposed model for systemic signal integration, focusing on the ROS wave.

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Systemic signalling, and the synchronization of stomatal response

Abstract: This article is a Commentary on Devireddy et al. (2020), 225: 21–25.

Cited by 13 publications

References 15 publications

Reactive Oxygen Species in Plants: From Source to Sink

Reactive Oxygen Species in Plants: From Source to Sink

Integration of reactive oxygen species and hormone signaling during abiotic stress

Rapid systemic signaling during abiotic and biotic stresses: is the ROS wave master of all trades?

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