The Crosstalk of Melatonin and Hydrogen Sulfide Determines Photosynthetic Performance by Regulation of Carbohydrate Metabolism in Wheat under Heat Stress

Plants, Journal Year: 2021, Volume and Issue: 10(9), P. 1778 - 1778

Published: Aug. 26, 2021

Photosynthesis is a pivotal process that determines the synthesis of carbohydrates required for sustaining growth under normal or stress situation. Stress exposure reduces photosynthetic potential owing to excess reactive oxygen species disturb proper functioning apparatus. This decreased photosynthesis associated with disturbances in carbohydrate metabolism resulting reduced stress. We evaluated importance melatonin reducing heat stress-induced severity wheat (Triticum aestivum L.) plants. The plants were subjected 25 °C (optimum temperature) 40 (heat stress) 15 days at 6 h time duration and then developed 30 days. Heat led oxidative increased production thiobarbituric acid substances (TBARS) hydrogen peroxide (H2O2) content accrual total soluble sugars, starch enzymes which reflected photosynthesis. Application not only through lowering TBARS H2O2 content, augmenting activity antioxidative but also plant was needed provide energy carbon skeleton developing However, increase these parameters mediated via sulfide (H2S), as inhibition H2S by hypotaurine (HT; scavenger) reversed ameliorative effect melatonin. suggests crosstalk protecting regulation metabolism.

Language: Английский

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A Systematic Review of Melatonin in Plants: An Example of Evolution of Literature

Frontiers in Plant Science, Journal Year: 2021, Volume and Issue: 12

Published: June 18, 2021

Melatonin (N-acetyl-5-methoxy-tryptamine) is a mammalian neurohormone, antioxidant and signaling molecule that was first discovered in plants 1995. The studies investigated plant melatonin from human perspective quantifying foods medicinal questioning whether its presence could explain the activity of some as medicines. Starting with these handful late 1990s, research has blossomed into vibrant active area investigation been found to play critical roles mediating responses development at every stage life cycle pollen embryo through seed germination, vegetative growth stress response. Here we have utilized systematic approach accordance preferred reporting items for reviews meta-analyses (PRISMA) protocols reduce bias our assessment literature provide an overview current state plants, covering 1995–2021. This review provides biosynthesis metabolism well identifying key themes including: abiotic responses, root development, light interkingdom communication, phytohormone signaling. Additionally, potential biases are birefringence between researchers medical based which helped shape research. Several exciting new opportunities future areas also identified including non-crop non-medicinal species characterization networks plants.

Language: Английский

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Functions of Melatonin during Postharvest of Horticultural Crops

Plant and Cell Physiology, Journal Year: 2021, Volume and Issue: 63(12), P. 1764 - 1786

Published: Dec. 14, 2021

Melatonin, a tryptophan-derived molecule, is endogenously generated in animal, plant, fungal and prokaryotic cells. Given its antioxidant properties, it involved myriad of signaling functions associated with various aspects plant growth development. In higher plants, melatonin (Mel) interacts regulators such as phytohormones, well reactive oxygen nitrogen species including hydrogen peroxide (H2O2), nitric oxide (NO) sulfide (H2S). It shows great potential biotechnological tool to alleviate biotic abiotic stress, delay senescence conserve the sensory nutritional quality postharvest horticultural products which are considerable economic importance worldwide. This review provides comprehensive overview biochemistry Mel, whose endogenous induction exogenous application can play an important role enhancing marketability hence earnings from crops.

Language: Английский

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Mixed red and blue light promotes ripening and improves quality of tomato fruit by influencing melatonin content

Environmental and Experimental Botany, Journal Year: 2021, Volume and Issue: 185, P. 104407 - 104407

Published: Feb. 5, 2021

Language: Английский

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Melatonin functions in priming of stomatal immunity inPanax notoginseng and Arabidopsis thaliana

PLANT PHYSIOLOGY, Journal Year: 2021, Volume and Issue: 187(4), P. 2837 - 2851

Published: Sept. 1, 2021

Abstract Melatonin (MT) plays important roles in plant disease response, but the mechanisms are largely unknown. Here, we show that MT functions stomatal immunity Panax notoginseng and Arabidopsis thaliana. Biochemical analyses showed MT-induced closure a prominent role preventing invasion of bacteria Pseudomonas syringe pv. tomato (Pst) DC3000 via activation mitogen-activated protein kinase (MAPK) NADPH oxidase-mediated reactive oxygen species production P. notoginseng. The first putative phytomelatonin receptor 1 (PMTR1) is plasma membrane required for perceiving signaling MAPK. genetic tests found PMTR1 essential flg22- MAPK heterotrimeric GTP-binding Gα subunit GPA1-independent manner. GPA1 same pathways FLS2/BAK1 (Flagellin Sensing 2/Brassinosteroid Insensitive 1-associated 1)- as well PMTR1-mediated flg22 closure. stomata pmtr1 insensitive to flg22, application induces reduces bacterial growth fls2 bak1 plants, indicating might be downstream component FLS2- BAK1-mediated immunity. In summary, our results (i) demonstrate priming (ii) provide insights into transduction pathway.

Language: Английский

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Melatonin as a plant biostimulant in crops and during post‐harvest: a new approach is needed

Journal of the Science of Food and Agriculture, Journal Year: 2021, Volume and Issue: 101(13), P. 5297 - 5304

Published: May 18, 2021

A great amount of data covering a wide variety plant species and experimental conditions has demonstrated the beneficial actions that melatonin exerts on many aspects development, including germination, photosynthesis water economy. Melatonin behaves especially well as biostimulator against biotic abiotic stressors, increasing stress tolerance. The present contribution sets out possible future multidisciplinary studies, in which impact using with respect to agriculture, food technology, human nutrition environment needs be clearly established. In crops, effective dose best formulations for individual cultivation should studied. As regards post-harvest, focus half-life time fruits water-residue treatments. Detailed studies are lacking intake phytomelatonin different diets. Studies metabolization combined effect other phytonutrients such carotenoids, chlorophylls, flavonoids, fibers, etc., would also interest. soils, interaction between microbiome non-vertebrate animals is primordial terms environment, although classified non-hazardous agent, its limitations animal hormone disruptor have been suggested. Specific permanence tissues, by-products, soil, freshwater honeybees, amongst others, proposed obtain crucial information. © 2021 Society Chemical Industry.

Language: Английский

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Chemical priming enhances plant tolerance to salt stress

Frontiers in Plant Science, Journal Year: 2022, Volume and Issue: 13

Published: Sept. 7, 2022

Salt stress severely limits the productivity of crop plants worldwide and its detrimental effects are aggravated by climate change. Due to a significant world population growth, agriculture has expanded marginal salinized regions, which usually render low yield. In this context, finding methods strategies improve plant tolerance against salt is utmost importance fulfill food security challenges under scenario ever-increasing human population. Plant priming, at different stages development, such as seed or seedling, gained attention for marked implication in salt-stress management. It promising field relying on applications specific chemical agents could effectively tolerance. Currently, variety chemicals, both inorganic organic, can efficiently promote growth yield available market. This review summarizes our current knowledge roles diverse molecules/compounds, hydrogen sulfide (H 2 S), molecular hydrogen, nitric oxide (NO), peroxide O ), melatonin, chitosan, silicon, ascorbic acid (AsA), tocopherols, trehalose (Tre) potential primers that enhance salinity plants.

Language: Английский

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Phytomelatonin as a central molecule in plant disease resistance

Journal of Experimental Botany, Journal Year: 2022, Volume and Issue: 73(17), P. 5874 - 5885

Published: March 11, 2022

Melatonin is an essential phytohormone in the regulation of many plant processes, including during development and response to stress. Pathogen infections cause serious damage plants reduce agricultural production. Recent studies indicate that melatonin plays important roles alleviating bacterial, fungal, viral diseases post-harvest fruits. Herein, we summarize information related effects on disease resistance. Melatonin, reactive oxygen species, nitrogen species form a complex loop plant-pathogen interaction regulate Moreover, crosstalk with other phytohormones salicylic acid, jasmonic auxin, abscisic acid further activates defense genes. role not only immunity but also pathogenicity. We known processes by which mediates pathogenicity via negatively regulating expression levels genes cell viability as well virulence-related The multiple mechanisms underlying influences both support recognition nature interactions, highlighting phytomelatonin critical molecule immune responses.

Language: Английский

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Interactions of melatonin, reactive oxygen species, and nitric oxide during fruit ripening: an update and prospective view

Journal of Experimental Botany, Journal Year: 2022, Volume and Issue: 73(17), P. 5947 - 5960

Published: March 23, 2022

Fruit ripening is a physiological process that involves complex network of signaling molecules act as switches to activate or deactivate certain metabolic pathways at different levels, not only by regulating gene and protein expression but also through post-translational modifications the involved proteins. Ethylene distinctive molecule regulates fruits, which can be classified climacteric non-climacteric according whether not, respectively, they are dependent on this phytohormone. However, in recent years it has been found other with potential exert regulatory roles, individually result interactions among them. These observations imply existence mutual hierarchical regulations sometimes make difficult identify initial triggering event. Among these 'new' molecules, hydrogen peroxide, nitric oxide, melatonin have highlighted prominent. This review provides comprehensive outline relevance fruit known

Language: Английский

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Advances in Plant Metabolomics and Its Applications in Stress and Single-Cell Biology

International Journal of Molecular Sciences, Journal Year: 2022, Volume and Issue: 23(13), P. 6985 - 6985

Published: June 23, 2022

In the past two decades, post-genomic era envisaged high-throughput technologies, resulting in more species with available genome sequences. In-depth multi-omics approaches have evolved to integrate cellular processes at various levels into a systems biology knowledge base. Metabolomics plays crucial role molecular networking bridge gaps between genotypes and phenotypes. However, greater complexity of metabolites diverse chemical physical properties has limited advances plant metabolomics. For several years, applications liquid/gas chromatography (LC/GC)-mass spectrometry (MS) nuclear magnetic resonance (NMR) been constantly developed. Recently, ion mobility (IMS)-MS shown utility resolving isomeric isobaric metabolites. Both MS NMR combined metabolomics significantly increased identification quantification an untargeted targeted manner. Thus, hyphenated tools will narrow gap number metabolite features identified Metabolites change response environmental conditions, including biotic abiotic stress factors. The spatial distribution across different organs, tissues, cells compartments is trending research area Herein, we review recent technological advancements their understanding organization. addition, discuss opportunities challenges multiple interactions, multi-omics, single-cell

Language: Английский

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