Phytomelatonin: an unexpected molecule with amazing performances in plants

Journal of Experimental Botany, Journal Year: 2022, Volume and Issue: 73(17), P. 5779 - 5800

Published: Jan. 12, 2022

Phytomelatonin, a multifunctional molecule that has been found to be present in all plants examined date, an important role as modulatory agent (a biostimulator) improves plant tolerance both biotic and abiotic stress. We review of phytomelatonin considers its roles metabolism particular interactions with hormone network. In the primary plants, melatonin rate efficiency photosynthesis, well related factors such stomatal conductance, intercellular CO2, Rubisco activity. It also shown down-regulate some senescence transcription factors. Melatonin up-regulates many enzyme transcripts carbohydrates (including sucrose starch), amino acids, lipid metabolism, optimizing N, P, S uptake. With respect secondary clear increases polyphenol, glucosinolate, terpenoid, alkaloid contents have described numerous melatonin-treated plants. Generally, most genes these biosynthesis pathways up-regulated by melatonin. The great regulatory capacity is result control redox networks. acts master regulator, up-/down-regulating different levels signalling, key player homeostasis. counteract diverse critical situations pathogen infections stresses, provide varying degrees tolerance. propose possible future applications for crop improvement post-harvest product preservation.

Language: Английский

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Ethylene Signaling under Stressful Environments: Analyzing Collaborative Knowledge

Plants, Journal Year: 2022, Volume and Issue: 11(17), P. 2211 - 2211

Published: Aug. 25, 2022

Ethylene is a gaseous plant growth hormone that regulates various developmental processes, ranging from seed germination to senescence. The mechanisms underlying ethylene biosynthesis and signaling involve multistep representing different control levels regulate its production response. an established phytohormone displays processes under environmental stress in plants. Such stresses trigger biosynthesis/action, which influences the development of plants opens new windows for future crop improvement. This review summarizes current understanding how plants’ biosynthesis, signaling, focuses on (a) plants, (b) influence (c) regulation acclimation, (d) potential ethylene-mediated tolerance (e) summarizing formation mechanism action.

Language: Английский

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Functions and prospects of melatonin in plant growth, yield, and quality

Journal of Experimental Botany, Journal Year: 2022, Volume and Issue: 73(17), P. 5928 - 5946

Published: May 30, 2022

Abstract Melatonin (N-acetyl-5-methoxytryptamine) is an indole molecule widely found in animals and plants. It well known that melatonin improves plant resistance to various biotic abiotic stresses due its potent free radical scavenging ability while being able modulate signaling response pathways through mostly unknown mechanisms. In recent years, increasing number of studies have shown plays a crucial role improving crop quality yield by participating the regulation aspects growth development. Here, we review effects on vegetative reproductive development, systematically summarize molecular regulatory network. Moreover, effective concentrations exogenously applied different crops or at stages same are analysed. addition, compare endogenous phytomelatonin organs, evaluate potential function circadian rhythms. The prospects approaches regulating exogenous application appropriate melatonin, modification metabolism-related genes, use nanomaterials other technologies improve utilization efficiency also discussed.

Language: Английский

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Ethylene and Jasmonates Signaling Network Mediating Secondary Metabolites under Abiotic Stress

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(6), P. 5990 - 5990

Published: March 22, 2023

Plants are sessile organisms that face environmental threats throughout their life cycle, but increasing global warming poses an even more existential threat. Despite these unfavorable circumstances, plants try to adapt by developing a variety of strategies coordinated plant hormones, resulting in stress-specific phenotype. In this context, ethylene and jasmonates (JAs) present fascinating case synergism antagonism. Here, Ethylene Insensitive 3/Ethylene Insensitive-Like Protein1 (EIN3/EIL1) Jasmonate-Zim Domain (JAZs)-MYC2 the JAs signaling pathways, respectively, appear act as nodes connecting multiple networks regulate stress responses, including secondary metabolites. Secondary metabolites multifunctional organic compounds play crucial roles acclimation plants. exhibit high plasticity metabolism, which allows them generate near-infinite chemical diversity through structural modifications, likely have selective adaptive advantage, especially climate change challenges. contrast, domestication crop has resulted or loss phytochemicals, making significantly vulnerable stresses over time. For reason, there is need advance our understanding underlying mechanisms hormones respond abiotic stress. This knowledge may help improve adaptability resilience changing climatic conditions without compromising yield productivity. Our aim review was provide detailed overview responses mediated impact on

Language: Английский

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Melatonin suppresses ethylene biosynthesis by inhibiting transcription factor MdREM10 during apple fruit ripening

Horticulture Research, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Abstract Ethylene, a plant hormone, is essential for apple (Malus domestica) ripening. The precise molecular mechanism by which melatonin (MT) influences ethylene biosynthesis during fruit ripening remains unclear. This study found that exogenous MT treatment inhibited production and postponed endogenous content of fruits exhibited an inverse correlation with ripening, suggesting functions as suppressor in fruits. suppressed the expression key genes, MdACS1 MdACO1, decreased levels transcription factors MdREM10 MdZF32. binds to MdERF3 promoter, enhancing its subsequently promoting transcription. Furthermore, directly bound MdZF32 MdACO1 inducing expression. findings suggested suppresses inhibiting MdREM10, indirectly promotes via upregulation, upregulation.

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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Melatonin enhances stress tolerance in pigeon pea by promoting flavonoid enrichment, particularly luteolin in response to salt stress

Journal of Experimental Botany, Journal Year: 2022, Volume and Issue: 73(17), P. 5992 - 6008

Published: June 21, 2022

Abstract Melatonin improves plant resistance to multiple stresses by participating in the biosynthesis of metabolites. Flavonoids are an important family secondary metabolites and widely recognized be involved resistance; however, crosstalk between melatonin flavonoid is largely unknown. We found that pigeon pea (Cajanus cajan) salt, drought, heat were significantly enhanced pre-treatment with melatonin. Combined transcriptome LC-ESI-MS/MS metabolomics analyses showed induced enrichment flavonoids mediated reprogramming biosynthetic pathway genes. The highest fold-increase expression response treatment was observed for CcF3´H family, which encodes enzyme catalyses luteolin, transcription factor CcPCL1 directly bonded CcF3´H-5 promoter enhance its expression. In addition, salt stress also CcF3´H-5, their overexpression transgenic plants greatly tolerance promoting luteolin. Overall, our results indicated promoted luteolin through pathways, resulting tolerance. Our study shows enhances mediating biosynthesis, providing new avenues studying flavonoids.

Language: Английский

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CRISPR/Cas9-mediated mutagenesis of VvbZIP36 promotes anthocyanin accumulation in grapevine (Vitis vinifera)

Horticulture Research, Journal Year: 2022, Volume and Issue: 9

Published: Jan. 1, 2022

Abstract Anthocyanins are plant secondary metabolites that have a variety of biological functions, including pigmentation. The accumulation anthocyanins is regulated by both transcriptional activators and repressors. Studies shown bZIP family members act primarily as positive regulators anthocyanin biosynthesis, but there few reports negative regulation. Here, we report grapevine (Vitis vinifera) gene from group K, VvbZIP36, acts regulator biosynthesis. Knocking out one allele VvbZIP36 in with CRISPR/Cas9 promoted accumulation. Correlation analysis transcriptome metabolome data showed range biosynthesis genes were activated mutant plants relative to the wild type, resulting related metabolites, naringenin chalcone, naringenin, dihydroflavonols, cyanidin-3-O-glucoside. synthesis stilbenes (α-viniferin), lignans, some flavonols (including quercetin-3-O-rhamnoside, kaempferol-3-O-rhamnoside, kaempferol-7-O-rhamnoside) was significantly inhibited, several linked their metabolism downregulated plants. In summary, our results demonstrate plays role balancing flavonols, anthocyanins.

Language: Английский

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Introducing melatonin to the horticultural industry: physiological roles, potential applications, and challenges

Horticulture Research, Journal Year: 2022, Volume and Issue: 9

Published: Jan. 5, 2022

Melatonin (N-acetyl-5-methoxytryptamine) is an emerging biomolecule that influences horticultural crop growth, flowering, fruit ripening, postharvest preservation, and stress protection. It functions as a plant growth regulator, preservative antimicrobial agent to promote seed germination, regulate root system architecture, influence flowering pollen production, ensure increase resistance abiotic biotic stresses. Here, we highlight the potential applications of melatonin in multiple aspects horticulture, including molecular breeding, vegetative reproduction, production virus-free plants, food safety, processing. We also discuss its effects on parthenocarpy, autophagy, arbuscular mycorrhizal symbiosis. Together, these many features contribute promise for improving safety. Effective translation industry requires understanding challenges associated with uses, development economically viable sources.

Language: Английский

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Fruit ripening under heat stress: The intriguing role of ethylene-mediated signaling

Plant Science, Journal Year: 2023, Volume and Issue: 335, P. 111820 - 111820

Published: Aug. 6, 2023

Language: Английский

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