Melatonin and Its Protective Role against Biotic Stress Impacts on Plants

Biomolecules, Journal Year: 2019, Volume and Issue: 10(1), P. 54 - 54

Published: Dec. 28, 2019

Biotic stress causes immense damage to agricultural products worldwide and raises the risk of hunger in many areas. Plants themselves tolerate biotic stresses via several pathways, including pathogen-associated molecular patterns (PAMPs), which trigger immunity plant resistance (R) proteins. On other hand, humans use non-ecofriendly methods control stresses, such as chemical applications. Compared with control, melatonin is an ecofriendly compound that economical alternative strategy can be used protect animals plants from attacks pathogens. In plants, bactericidal capacity was verified against Mycobacterium tuberculosis, well multidrug-resistant Gram-negative -positive bacteria under vitro conditions. Regarding plant-bacteria interaction, has presented effective antibacterial activities phytobacterial plant-fungi interaction models, found play a key role Botrytis cinerea, increase fungicide susceptibility, reduce tolerance Phytophthora infestans. plant-virus not only efficiently eradicated apple stem grooving virus (ASGV) shoots (making it useful for production virus-free plants) but also reduced tobacco mosaic (TMV) viral RNA concentration infected Nicotiana glutinosa Solanum lycopersicum seedlings. Indeed, unique advantages growth regulation increasing effectiveness different forms abiotic stress. Although considerable work been done regarding its remains unclear requires clarification. our review, we summarize accomplished so far; highlight melatonin's function pathogens bacteria, viruses, fungi; determine direction required future studies on this topic.

Language: Английский

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An evolutionary view of melatonin synthesis and metabolism related to its biological functions in plants

Journal of Experimental Botany, Journal Year: 2020, Volume and Issue: 71(16), P. 4677 - 4689

Published: May 7, 2020

Abstract Plant melatonin research is a rapidly developing field. A variety of isoforms melatonin’s biosynthetic enzymes are present in different plants. Due to the origins, they exhibit independent responses variable environmental stimuli. The locations for biosynthesis plants chloroplasts and mitochondria. These organelles have inherited their capacities from bacterial ancestors. Under ideal conditions, main sites biosynthesis. If chloroplast pathway blocked any reason, mitochondrial will be activated maintain its production. Melatonin metabolism less studied field; quite that animals even though share similar metabolites. Several new been cloned these absent animals. It seems 2-hydroxymelatonin major metabolite level ~400-fold higher than melatonin. In current article, an evolutionary point view, we update information on plant metabolism. This review help reader understand complexity processes promote enthusiasm fields.

Language: Английский

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Emerging roles of melatonin in mitigating abiotic and biotic stresses of horticultural crops

Scientia Horticulturae, Journal Year: 2020, Volume and Issue: 272, P. 109592 - 109592

Published: July 9, 2020

Language: Английский

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Melatonin alleviates pericarp browning in litchi fruit by regulating membrane lipid and energy metabolisms

Postharvest Biology and Technology, Journal Year: 2019, Volume and Issue: 160, P. 111066 - 111066

Published: Nov. 15, 2019

Language: Английский

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Melatonin as a regulatory hub of plant hormone levels and action in stress situations

Plant Biology, Journal Year: 2020, Volume and Issue: 23(S1), P. 7 - 19

Published: Oct. 24, 2020

Melatonin, a molecule first discovered in animal tissues, plays an important role multiple physiological responses as possible plant master regulator. It mediates to different types of stress, both biotic and abiotic. Melatonin reduces the negative effects associated with stressors, improving response by increasing stress tolerance. When plants respond situations, they use up large amount resources through set perfectly synchronized actions. Responses mediated melatonin plant's hormones to, after adequate modulation, counteract overcome action stressor. In this paper, we review melatonin-plant hormone relationships. Factors that trigger central are analysed. An extensive analysis current studies shows modulates metabolism (biosynthesis catabolism), rise or fall their endogenous levels, regulation signalling elements how affects final auxin, gibberellins, cytokinins, abscisic acid, ethylene, salicylic jasmonates, brassinosteroids, polyamines strigolactones. Lastly, general overview melatonin's actions its regulatory at global level is provided proposals for future research made.

Language: Английский

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Applications of nitric oxide and melatonin in improving postharvest fruit quality and the separate and crosstalk biochemical mechanisms

Trends in Food Science & Technology, Journal Year: 2020, Volume and Issue: 99, P. 531 - 541

Published: March 20, 2020

Language: Английский

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Phytomelatonin: An Emerging Regulator of Plant Biotic Stress Resistance

Trends in Plant Science, Journal Year: 2020, Volume and Issue: 26(1), P. 70 - 82

Published: Sept. 4, 2020

Language: Английский

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Methyl jasmonate mediates melatonin-induced cold tolerance of grafted watermelon plants

Horticulture Research, Journal Year: 2021, Volume and Issue: 8(1)

Published: March 10, 2021

Abstract Root–shoot communication has a critical role in plant adaptation to environmental stress. Grafting is widely applied enhance the abiotic stress tolerance of many horticultural crop species; however, signal transduction mechanism involved this remains unknown. Here, we show that pumpkin- or figleaf gourd rootstock-enhanced cold watermelon shoots accompanied by increases accumulation melatonin, methyl jasmonate (MeJA), and hydrogen peroxide (H 2 O ). Increased melatonin levels leaves were associated with both increased rootstocks MeJA-induced biosynthesis plants under Exogenous MeJA H enhanced tolerance, while inhibition attenuated rootstock-induced tolerance. application induced but JA abolished rootstock- melatonin-induced Additionally, production Taken together, our results suggest grafting-induced inducing . subsequently accumulation, forming self-amplifying feedback loop leads This study reveals novel regulatory

Language: Английский

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Effects of exogenous methyl jasmonate on quality and preservation of postharvest fruits: A review

Food Chemistry, Journal Year: 2021, Volume and Issue: 353, P. 129482 - 129482

Published: March 7, 2021

Language: Английский

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Melatonin Function and Crosstalk with Other Phytohormones under Normal and Stressful Conditions

Genes, Journal Year: 2022, Volume and Issue: 13(10), P. 1699 - 1699

Published: Sept. 22, 2022

Melatonin was discovered in plants the late nineties, but its role, signaling, and crosstalk with other phytohormones remain unknown. Research on melatonin has risen dramatically recent years role of this putative plant hormone under biotic abiotic stress conditions been reported. In present review, we discuss main functions growth development plants, stresses, such as water (waterlogging drought), extreme temperature (low high), salinity, heavy metal, light-induced stress. Similarly, also stresses (antiviral, antibacterial, antifungal effects). Moreover, review meticulously discusses auxins, gibberellic acids, cytokinins, ethylene, salicylic acid normal stressful reports receptors signaling plants. All these aspects suggest that phytomelatonin is a key player crop improvement regulation.

Language: Английский

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