Reactive Oxygen Species and Antioxidant Defense in Plants under Abiotic Stress: Revisiting the Crucial Role of a Universal Defense Regulator

Antioxidants, Journal Year: 2020, Volume and Issue: 9(8), P. 681 - 681

Published: July 29, 2020

Global climate change and associated adverse abiotic stress conditions, such as drought, salinity, heavy metals, waterlogging, extreme temperatures, oxygen deprivation, etc., greatly influence plant growth development, ultimately affecting crop yield quality, well agricultural sustainability in general. Plant cells produce radicals their derivatives, so-called reactive species (ROS), during various processes with stress. Moreover, the generation of ROS is a fundamental process higher plants employs to transmit cellular signaling information response changing environmental conditions. One most crucial consequences disturbance equilibrium between antioxidant defense systems triggering excessive accumulation inducing oxidative plants. Notably, detoxification maintained by both enzymatic nonenzymatic under harsh stresses. Although this field research has attracted massive interest, it largely remains unexplored, our understanding poorly understood. In review, we have documented recent advancement illustrating harmful effects ROS, system involved different stresses, molecular cross-talk other important signal molecules nitrogen, sulfur, carbonyl species. addition, state-of-the-art approaches ROS-mediated improvement acclimation against stresses also been discussed.

Language: Английский

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Abiotic Stress and Reactive Oxygen Species: Generation, Signaling, and Defense Mechanisms

Antioxidants, Journal Year: 2021, Volume and Issue: 10(2), P. 277 - 277

Published: Feb. 11, 2021

Climate change is an invisible, silent killer with calamitous effects on living organisms. As the sessile organism, plants experience a diverse array of abiotic stresses during ontogenesis. The relentless climatic changes amplify intensity and duration stresses, making dwindle to survive. Plants convert 1-2% consumed oxygen into reactive species (ROS), in particular, singlet (1O2), superoxide radical (O2•-), hydrogen peroxide (H2O2), hydroxyl (•OH), etc. as byproduct aerobic metabolism different cell organelles such chloroplast, mitochondria, regulatory network comprising enzymatic non-enzymatic antioxidant systems tends keep magnitude ROS within plant cells non-damaging level. However, under stress conditions, production rate increases exponentially, exceeding potential scavengers instigating oxidative burst, which affects biomolecules disturbs cellular redox homeostasis. are similar double-edged sword; and, when present below threshold level, mediate signaling pathways that actuate growth, development, acclimatization against stresses. displays both detrimental beneficial effects. exact mediated alleviation yet be fully elucidated. Therefore, review deposits information about status known sites production, mechanisms/pathways, effects, management stress. In addition, role played by advancement modern techniques molecular priming, biology, phenomics, crop modeling preventing stress, well diverting has been canvassed.

Language: Английский

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Global Warming, Climate Change, and Environmental Pollution: Recipe for a Multifactorial Stress Combination Disaster

Trends in Plant Science, Journal Year: 2021, Volume and Issue: 26(6), P. 588 - 599

Published: March 19, 2021

A multifactorial stress combination occurs when more than two to three abiotic and/or biotic factors simultaneously impact a plant.Global warming, climate change, and industrial pollution could result in an increase the frequency, complexity, intensity of combinations impacting plants, soils, microbial communities.With number survival growth plants declines, even if levels each these individual stresses is very low.The response unique involves many transcripts genes that are not altered different applied individually.The harmful effects on soil properties, diversity communities should serve as dire warning our society prompt us act drastically reduce sources environment. Global environmental present with stresses. Although much known about how acclimate stresses, little they respond occurring together, namely combination. Recent studies revealed increasing co-occurring causes severe decline plant survival, well microbiome biodiversity depend upon. This effect decisively pollutants, fight global augment tolerance crops combinations. The accumulated human life planet over past several decades, particular revolution, resulted constant greenhouse gas production (mainly CO2) caused by burning fossil fuels (Figure 1A ; www.ipcc.ch/) [1.Sala O.E. et al.Global scenarios for year 2100.Science. 2000; 287: 1770-1774Crossref PubMed Scopus (5873) Google Scholar, 2.Mazdiyasni O. AghaKouchak A. Substantial concurrent droughts heatwaves United States.Proc. Natl. Acad. Sci. U. S. 2015; 112: 11484-11489Crossref (242) 3.Lehmann J. Rillig M. Distinguishing variability from uncertainty.Nat. Clim. Chang. 2014; 4: 153Crossref (21) 4.Bigot al.Pivotal roles sensing signaling mechanisms responses change.Glob. Biol. 2018; 24: 5573-5589Crossref (14) 5.Grossiord C. al.Plant rising vapor pressure deficit.New Phytol. 2020; 226: 1550-1566Crossref (145) 6.Anderson J.T. Song B. Plant adaptation change – where we?.J. Syst. 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Plants. 2016; 216132Crossref (147) Scholar]. accumulation CO2 atmosphere traps IR radiation emitted surface Earth following absorption sunlight heats planet, driving alarming trend continual ocean temperatures, termed warming 1A; www.ipcc.ch/, https://ourworldindata.org/owid-grapher, www.eea.europa.eu/) turn drives drastic climate, accompanied frequency heat waves 1B), other conditions such flooding, salinity, freezing (www.ipcc.ch/, www.ncdc.noaa.gov/, www.eea.europa.eu/, www.epa.gov/) At same time, overall population, coupled expansion residential commercial land use, availability prime agricultural 1C; https://ourworldindata.org/owid-grapher) [10.Borrelli P. al.Land use impacts erosion water (2015-2070).Proc. 117: 21994-22001Crossref (104) 11.Grimm N.B. al.The changing landscape: ecosystem urbanization across climatic societal gradients.Front. Ecol. Environ. 2008; 6: 264-272Crossref (434) 12.Mittler R. Blumwald E. Genetic engineering modern agriculture: challenges perspectives.Annu. Rev. 2010; 61: 443-462Crossref (618) loss arable farmland necessitates continued yield produced acre remaining feed ever-growing population [7.Bailey-Serres Scholar,12.Mittler Scholar,13.Lobell D.B. Gourdji S.M. influence productivity.Plant Physiol. 2012; 160: 1686-1697Crossref (502) However, freshwater agriculture also declining due demand 1D; Scholar,7.Bailey-Serres As result, quality used irrigate (e.g., its pH, salinity levels, content contaminants) In addition gradual day night temperatures [14.Slattery R.A. Ort D.R. Carbon assimilation at high temperatures.Plant Cell 42: 2750-2758Crossref (25) 15.Grinevich D.O. al.Novel transcriptional turning up night.Plant Mol. 101: 1-19Crossref 16.Shi W. al.High day- night-time affect grain dynamics contrasting rice genotypes.J. Exp. Bot. 2017; 68: 5233-5245Crossref (51) Scholar], reduced episodes stress, 1A,B,D; subjected concentrations man-made contaminants, pollutants 1E; [17.Jarsjö al.Projecting metal mobilization contaminated sites: controls groundwater level.Sci. Total 712135560Crossref (15) 18.Alkorta I. al.Environmental parameters activity microorganisms involved bioremediation.FEMS Microbiol. Lett. 364: 200Crossref (22) 19.Suseela V. Tharayil N. Decoupling direct indirect litter decomposition: accounting stress-induced modifications chemistry.Glob. 1428-1451Crossref (43) 20.Rillig M.C. al.Microplastic plants.New 223: 1066-1070Crossref (138) These byproducts include, among others, heavy metals, microplastics, pesticides, herbicides, antibiotics, persistent organic tropospheric ozone, diesel burn particles. Many contaminants can further cause changes pH damage stratospheric ozone layer enhance UV reaching 21.Liess al.Predicting synergy multiple effects.Sci. Rep. 632965Crossref (119) directly reproduction within eco- systems, described previous text were found vulnerability attack pathogens pests, alter behavior insects, resulting forest ecosystems insect-driven pollination [22.Borghi al.Flowers change: metabolic perspective.New 224: 1425-1441Crossref (36) 23.Cohen S.P. Leach J.E. High temperature-induced disease susceptibility: sum parts.Curr. Opin. 56: 235-241Crossref (10) 24.De Laender F. Community- ecosystem-level drivers: beyond null model testing.Glob. 5021-5030Crossref 25.Desaint H. al.Fight hard or die trying: face under stress.New 2021; 229: 712-734Crossref 26.Hamann al.Climate alters plant–herbivore interactions.New 1894-1910Crossref According computer models, increases droughts, waves, cold snaps, be average (www.ipcc.ch/) Scholar]). Such would threaten food security, potentially destabilizing areas leading unrest, hunger, wars [27.Challinor A.J. al.A meta-analysis adaptation.Nat. 287-291Crossref (898) 28.Savary Willocquet L. Modeling diseases security.Annu. Phytopathol. 313-341Crossref (9) 29.Mourtzinis al.Climate-induced reduction US-wide soybean yields underpinned region-and in-season-specific responses.Nat. 114026Crossref (52) addition, geographical important shift climb worsen 1F) (www.eea.europa.eu/) Scholar,8.Cline all once, factors, stressors, pathogens, text, likely crops, trees growing planet. Furthermore, owing processes drive 1A–E) (www.ipcc.ch/), likelihood will (Box 1) stressors gradually [30.Rillig role functions biodiversity.Science. 366: 886-890Crossref (121) Scholar,31.Zandalinas S.I. survival.New (Published online January 26, 2021. https://doi.org/10.1111/nph.17232)Crossref Scholar].Box 1The Definition Multifactorial Stress CombinationWe define (n ≥ 3) plants. definition takes concept simple most heat, salt drought, virus infection; e.g., [42.Sewelam al.Molecular combined put spotlight unknown abundant genes.J. 71: 5098-5112Crossref (11) Scholar,44.Rizhsky al.When defense pathways collide. Arabidopsis stress.Plant 2004; 134: 1683-1696Crossref (1044) Scholar,48.Prasch C.M. Sonnewald Simultaneous application reveals significant shifts networks.Plant 2013; 162: 1849-1866Crossref (261) Scholar,50.Shaar-Moshe al.Unique physiological heat.Plant 174: 421-434Crossref (48) Scholar]) extends it factors. depicted presented Figure I, virus, bacteria, insect), climate-driven heat), anthropogenic metals), biotic/abiotic soil-associated nutrient deficiency, decreased diversity) origin. Any simultaneously, therefore defined We least recent addressed potential populations. al. Scholar] examined properties ten associated studied using low nitrogen, temperature, glyphosate, fungicides, copper, insecticides. It was constituting (selected sets one, two, five, eight, factors) decrease microbiome, respiration, water-stable aggregates decomposition rate 2A ). proposed occur, first demonstrate negative communities. Examining Zandalinas [31.Zandalinas arabidopsis (Arabidopsis thaliana) seedlings six including salt, light, cadmium, acidity, herbicide paraquat 2B,C). studying this study conducted transcriptomic analysis selected set mutants impaired reactive oxygen species (ROS) metabolism, hormonal pathways. Perhaps finding that, although individually had negligible their detrimental because demonstrates interact negatively health performance, negligible. ways we may able predict. For example, observe clear level single factor; however, once additional introduced, lead dramatic decreases productivity, push towards rapid decline. Together pioneering results reported suggest environment, life, microbiomes, soils deteriorate 2). similar trends observed society. Further altering polluting environment higher complexities crucial growth, conditions, productivity While demonstrated degrade 2A), between peat 2C) agar plates 2B). Plants

Language: Английский

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The Role of the Plant Antioxidant System in Drought Tolerance

Antioxidants, Journal Year: 2019, Volume and Issue: 8(4), P. 94 - 94

Published: April 8, 2019

Water deficiency compromises plant performance and yield in many habitats agriculture. In addition to survival of the acute drought stress period which depends on plant-genotype-specific characteristics, intensity duration, also speed efficiency recovery determine performance. Drought-induced deregulation metabolism enhances generation reactive oxygen species (ROS) nitrogen (RNS) turn affect redox regulatory state cell. Strong correlative analytical evidence assigns a major role tolerance antioxidant system. This review compiles current knowledge response function superoxide, hydrogen peroxide nitric oxide under various regimes. The meta-analysis reported changes transcript protein amounts, activities components network support tentative conclusion that is more tightly linked up-regulated ascorbate-dependent activity than thiol-redox network. significance system surviving severe phases dehydration further supported by strong usually encountered resurrection plants.

Language: Английский

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Regulation of Plant Responses to Salt Stress

International Journal of Molecular Sciences, Journal Year: 2021, Volume and Issue: 22(9), P. 4609 - 4609

Published: April 28, 2021

Salt stress is a major environmental that affects plant growth and development. Plants are sessile thus have to develop suitable mechanisms adapt high-salt environments. increases the intracellular osmotic pressure can cause accumulation of sodium toxic levels. Thus, in response salt signals, plants via various mechanisms, including regulating ion homeostasis, activating pathway, mediating hormone signaling, cytoskeleton dynamics cell wall composition. Unraveling underlying these physiological biochemical responses could provide valuable strategies improve agricultural crop yields. In this review, we summarize recent developments our understanding regulation stress.

Language: Английский

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Biostimulants Application in Horticultural Crops under Abiotic Stress Conditions

Agronomy, Journal Year: 2019, Volume and Issue: 9(6), P. 306 - 306

Published: June 12, 2019

Abiotic stresses strongly affect plant growth, development, and quality of production; final crop yield can be really compromised if stress occurs in plants’ most sensitive phenological phases. Additionally, the increase tolerance through genetic improvements requires long breeding programmes different cultivation environments for performance validation. Biostimulants have been proposed as agronomic tools to counteract abiotic stress. Indeed, these products containing bioactive molecules a beneficial effect on plants improve their capability face adverse environmental conditions, acting primary or secondary metabolism. Many companies are investing new biostimulant development identification effective contained kinds extracts, able elicit specific responses against stresses. Most compounds unknown characterization term composition is almost impossible; therefore, they could classified basis role plants. generally applied high-value crops like fruits vegetables; thus, this review, we examine summarise literature use vegetable crops, focusing application common

Language: Английский

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Bacterial Endophyte Colonization and Distribution within Plants

Microorganisms, Journal Year: 2017, Volume and Issue: 5(4), P. 77 - 77

Published: Nov. 25, 2017

The plant endosphere contains a diverse group of microbial communities. There is general consensus that these communities make significant contributions to health. Both recently adopted genomic approaches and classical microbiology techniques continue develop the science plant-microbe interactions. Endophytes are symbionts residing within for majority their life cycle without any detrimental impact host plant. use natural offers an opportunity maximize crop productivity while reducing environmental impacts agriculture. promote growth through nitrogen fixation, phytohormone production, nutrient acquisition, by conferring tolerance abiotic biotic stresses. Colonization endophytes crucial providing benefits Endophytic colonization refers entry, multiplication endophyte populations Lately, microbiome research has gained considerable attention but mechanism allowing plants recruit largely unknown. This review summarizes currently available knowledge about endophytic bacteria in various species, specifically discusses maize Populus endophytes.

Language: Английский

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Abiotic Stresses: General Defenses of Land Plants and Chances for Engineering Multistress Tolerance

Frontiers in Plant Science, Journal Year: 2018, Volume and Issue: 9

Published: Dec. 7, 2018

Abiotic stresses, such as low or high temperature, deficient excessive water, salinity, heavy metals, and ultraviolet radiation, are hostile to plant growth development, leading great crop yield penalty worldwide. It is getting imperative equip crops with multistress tolerance relieve the pressure of environmental changes meet demand population growth, different abiotic stresses usually arise together in field. The feasibility raised land plants actually have established more generalized defenses against including cuticle outside plants, unsaturated fatty acids, reactive species scavengers, molecular chaperones, compatible solutes inside cells. In stress response, they orchestrated by a complex regulatory network involving upstream signaling molecules hormones, oxygen species, gasotransmitters, polyamines, phytochromes, calcium, well downstream gene regulation factors, particularly transcription factors. this review, we aimed at presenting an overview these defensive systems network, eye their practical potential via genetic engineering and/or exogenous application.

Language: Английский

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Reactive oxygen species signaling and stomatal movement in plant responses to drought stress and pathogen attack

Journal of Integrative Plant Biology, Journal Year: 2018, Volume and Issue: 60(9), P. 805 - 826

Published: April 16, 2018

Stomata, the pores formed by a pair of guard cells, are main gateways for water transpiration and photosynthetic CO2 exchange, as well pathogen invasion in land plants. Guard cell movement is regulated combination environmental factors, including status, light, levels attack, endogenous signals, such abscisic acid apoplastic reactive oxygen species (ROS). Under abiotic biotic stress conditions, extracellular ROS mainly produced plasma membrane-localized NADPH oxidases, whereas intracellular multiple organelles. These form sophisticated cellular signaling network, with accumulation an early hallmark stomatal movement. Here, we review recent progress understanding molecular mechanisms primarily during drought attack. We summarize roles regulating movement, ABA signaling, immunity responses. Finally, discuss communication between organelles cells. This information provides conceptual framework how integrated various pathways plant responses to stimuli.

Language: Английский

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ROS Homeostasis in Abiotic Stress Tolerance in Plants

International Journal of Molecular Sciences, Journal Year: 2020, Volume and Issue: 21(15), P. 5208 - 5208

Published: July 23, 2020

Climate change-induced abiotic stress results in crop yield and production losses. These stresses result changes at the physiological molecular level that affect development growth of plant. Reactive oxygen species (ROS) is formed high levels due to within different organelles, leading cellular damage. Plants have evolved mechanisms control scavenging ROS through enzymatic non-enzymatic antioxidative processes. However, has a dual function where, levels, they are toxic cells while same molecule can as signal transducer activates local systemic plant defense response against stress. The effects, perception, signaling, activation their responses elaborated this review. This review aims provide purview processes involved homeostasis plants identify genes triggered abiotic-induced oxidative articulates importance these pathways understanding mechanism resistance information breeding genetically developing crops for plants.

Language: Английский

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