Respiratory burst oxidase homologue‐dependent H2O2 and chloroplast H2O2 are essential for the maintenance of acquired thermotolerance during recovery after acclimation

Sun, Mintao; Jiang, Fangling; Cen, Benjian; Wen, Junqin; Zhou, Yanzhao; Wu, Zhiyong

doi:10.1111/pce.13351

Cited by 28 publications

(22 citation statements)

References 74 publications

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“…BRs were shown to induce a transient H 2 O 2 production by NADPH oxidase that enhances ABA accumulation leading to further increases in H 2 O 2 production and improved stress tolerance to heat in tomato plants (Nie et al ., 2013; Zhou et al ., 2014). Furthermore, in the crosstalk between ABA, auxin and ROS regulatory networks, ascorbate peroxidase 6 ( APX6 ) was found to be involved in protecting germinating seeds from heat stress, and RBOH‐dependent H 2 O 2 was found to be essential for the maintenance of acquired thermotolerance after acclimation (Chen et al ., 2014; Sun et al ., 2018).…”

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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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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“…Important targets in these responses are RBOHs [ 177 , 226 , 227 ]. Recently, maintenance of acquired thermotolerance was found to be interlinked with generation of H 2 O 2 by RBOHs [ 228 ] and these NADH oxidases also participate in H 2 O 2 production in biotic interactions. Under pathogen attack, ROS accumulation is involved in PCD of infected and surrounding cells [ 229 ].…”

Section: H 2 O 2 In Growth Amentioning

confidence: 99%

Hydrogen Peroxide: Its Role in Plant Biology and Crosstalk with Signalling Networks

Černý

Habánová

Berka

et al. 2018

IJMS

164

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Hydrogen peroxide (H2O2) is steadily gaining more attention in the field of molecular biology research. It is a major REDOX (reduction–oxidation reaction) metabolite and at high concentrations induces oxidative damage to biomolecules, which can culminate in cell death. However, at concentrations in the low nanomolar range, H2O2 acts as a signalling molecule and in many aspects, resembles phytohormones. Though its signalling network in plants is much less well characterized than are those of its counterparts in yeast or mammals, accumulating evidence indicates that the role of H2O2-mediated signalling in plant cells is possibly even more indispensable. In this review, we summarize hydrogen peroxide metabolism in plants, the sources and sinks of this compound and its transport via peroxiporins. We outline H2O2 perception, its direct and indirect effects and known targets in the transcriptional machinery. We focus on the role of H2O2 in plant growth and development and discuss the crosstalk between it and phytohormones. In addition to a literature review, we performed a meta-analysis of available transcriptomics data which provided further evidence for crosstalk between H2O2 and light, nutrient signalling, temperature stress, drought stress and hormonal pathways.

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“…Earlier studies have demonstrated that CO 2 was the final product of the complete enzymatic catalyzed oxidation of GO (Kotchey et al, 2011), and H 2 O 2 was a key component of this degradation process (Xing et al, 2014). In plants, H 2 O 2 plays an important role in regulating biotic and abiotic stress responses (Sun et al, 2018). Thus, given the widespread presence of H 2 O 2 in plants, they can potentially eliminate accumulated GFNs and could be used as phytoremediation agents for environmental clean-up.…”

Section: Phytotoxicity Of Gfnsmentioning

confidence: 99%

Phytotoxicity of Graphene Family Nanomaterials and Its Mechanisms: A Review

Wang

et al. 2019

Front. Chem.

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Graphene family nanomaterials (GFNs) have experienced significant development in recent years and have been used in many fields. Despite the benefits, they bring to society and the economy, their potential for posing environmental and health risks should also be considered. The increasing release of GFNs into the ecosystem is one of the key environmental problems that humanity is facing. Although most of these nanoparticles are present at low concentrations, many of them raise considerable toxicological concerns, particularly regarding their accumulation in plants and the consequent toxicity introduced at the bottom of the food chain. Here, we review the recent progress in the study of toxicity caused by GFNs to plants, as well as its influencing factors. The phytotoxicity of GFNs is mainly manifested as a delay in seed germination and a severe loss of morphology of the plant seedling. The potential mechanisms of phytotoxicity were summarized. Key mechanisms include physical effects (shading effect, mechanical injury, and physical blockage) and physiological and biochemical effects (enhancement of reactive oxygen species (ROS), generation and inhibition of antioxidant enzyme activities, metabolic disturbances, and inhibition of photosynthesis by reducing the biosynthesis of chlorophyll). In the future, it is necessary to establish a widely accepted phytotoxicity evaluation system for safe manufacture and use of GFNs.

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Respiratory burst oxidase homologue‐dependent H₂O₂ and chloroplast H₂O₂ are essential for the maintenance of acquired thermotolerance during recovery after acclimation

Cited by 28 publications

References 74 publications

Integration of reactive oxygen species and hormone signaling during abiotic stress

Integration of reactive oxygen species and hormone signaling during abiotic stress

Hydrogen Peroxide: Its Role in Plant Biology and Crosstalk with Signalling Networks

Phytotoxicity of Graphene Family Nanomaterials and Its Mechanisms: A Review

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