Transcriptomic and metabolomic analysis reveals the molecular mechanism of exogenous melatonin improves salt tolerance in eggplants

Frontiers in Plant Science, Год журнала: 2025, Номер 15

Опубликована: Янв. 10, 2025

Melatonin significantly enhances the tolerance of plants to biotic and abiotic stress, plays an important role in plant resistance salt stress. However, its molecular mechanisms eggplant stress have been rarely reported. In previous studies, we experimentally demonstrated that melatonin can enhance eggplants. this study, treated salt-stressed with a control treatment water, then conducted physiological biochemical tests, transcriptomic metabolomic sequencing, RT-qPCR validation at different stages after treatment. The results showed exogenous alleviate adverse effects on by increasing activity antioxidant enzymes, reducing content reactive oxygen species plants, organic osmoprotectants. Transcriptomic data, as well combined analysis, indicate activate metabolic pathways Compared genes α-linolenic acid metabolism pathway promote accumulation metabolites pathway, significant observed 48 hours treatment, activates expression such SmePLA2, SmeLOXs SmeOPR et al. α-Linolenic acid, (9R,13R)-12-oxophytodienoic 9(S)-HpOTrE (+)-7-iso-Jasmonic acid. validated activating effect candidate a-linolenic pathway. This study analyzed mechanism alleviating providing theoretical foundation for application enhancing production.

Язык: Английский

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Melatonin as a Key Factor for Regulating and Relieving Abiotic Stresses in Harmony with Phytohormones in Horticultural Plants — a Review

Journal of soil science and plant nutrition, Год журнала: 2023, Номер 24(1), С. 54 - 73

Опубликована: Дек. 26, 2023

Abstract Melatonin was found in plants the late 1990s, but its function, signaling, and interaction with other phytohormones still unclear. research has increased substantially recent years, including reports on impact of this putative plant hormone under biotic abiotic stress situations. Temperature extremes, salt, drought, hypoxia or anoxia, nutrient deficiency, herbicides, UV radiation stress, heavy metal toxicity are all important obstacles to horticulture crop production worldwide. To deal these environmental challenges, have evolved complex signaling networks. Phytohormones essential for controlling growth, development, responses. Melatonin, a pleiotropic chemical present variety species, recently emerged as powerful regulator tolerance. The purpose review is investigate interplay between melatonin control responses horticultural crops. We explore interactions several various stresses.

Язык: Английский

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Current views of drought research: experimental methods, adaptation mechanisms and regulatory strategies

Frontiers in Plant Science, Год журнала: 2024, Номер 15

Опубликована: Апрель 4, 2024

Drought stress is one of the most important abiotic stresses which causes many yield losses every year. This paper presents a comprehensive review recent advances in international drought research. First, main types and commonly used methods current experiment were introduced, advantages disadvantages each method evaluated. Second, response plants to was reviewed from aspects morphology, physiology, biochemistry molecular progression. Then, potential improve resistance emerging technologies introduced. Finally, research dilemma future development direction summarized. In summary, this provides insights into different perspectives theoretical reference for scholars engaged about engage

Язык: Английский

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Exogenous Melatonin Alleviates Cadmium Toxicity in Wheat (Triticum turgidum L.) by Modulating Endogenous Nitric Oxide and Hydrogen Sulfide Metabolism

Journal of soil science and plant nutrition, Год журнала: 2024, Номер 24(2), С. 2535 - 2552

Опубликована: Фев. 22, 2024

Язык: Английский

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Exogenous melatonin enhances heat stress tolerance in sweetpotato by modulating antioxidant defense system, osmotic homeostasis and stomatal traits

Horticultural Plant Journal, Год журнала: 2024, Номер unknown

Опубликована: Май 1, 2024

Heat stress hinders the growth and productivity of sweetpotato plants, predominantly through oxidative damage to cellular membranes. Therefore, development efficient approaches for mitigating heat-related impairments is essential long-term production sweetpotatoes. Melatonin has been recognised its capacity assist plants in dealing with abiotic conditions. This research aimed investigate how different doses exogenous melatonin influence heat plants. drastically affected shoot root fresh weight by 31.8 44.5%, respectively. reduction resulted characterised increased formation hydrogen peroxide (H2O2) 804.4%, superoxide ion (O2•−) 211.5% malondialdehyde (MDA) 234.2%. also reduced chlorophyll concentration, photosystem II efficiency (Fv/Fm) 15.3% gaseous exchange. However, pre-treatment 100 μmol · L-1 under stress. In particular, decreased H2O2, O2•− MDA 64.8%, 42.7% 38.2%, mitigated decline levels improved stomatal traits, exchange Fv/Fm (13%). Results suggested that favorable outcomes treatment can be associated elevated antioxidant enzyme activity an increase non-enzymatic antioxidants osmo-protectants. Overall, these findings indicate improve tolerance study will researchers further investigating makes sweetpotatoes more resistant

Язык: Английский

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Titanium dioxide nanoparticles alleviates polystyrene nanoplastics induced growth inhibition by modulating carbon and nitrogen metabolism via melatonin signaling in maize

Journal of Nanobiotechnology, Год журнала: 2024, Номер 22(1)

Опубликована: Май 17, 2024

Abstract Background Nanoplastics, are emerging pollutants, present a potential hazard to food security and human health. Titanium dioxide nanoparticles (Nano-TiO 2 ), serving as nano-fertilizer in agriculture, may be important alleviating polystyrene nanoplastics (PSNPs) toxicity. Results Here, we performed transcriptomic, metabolomic physiological analyzes identify the role of Nano-TiO regulating metabolic processes PSNPs-stressed maize seedlings ( Zea mays L.). The growth inhibition by PSNPs stress was partially relieved . Furthermore, when considering outcomes obtained from RNA-seq, enzyme activity, metabolite content analyses, it becomes evident that significantly enhance carbon nitrogen metabolism levels plants. In comparison plants were not subjected , exposed exhibited enhanced capabilities maintaining higher rates photosynthesis, sucrose synthesis, assimilation, protein synthesis under stressful conditions. Meanwhile, alleviated oxidative damage modulating antioxidant systems. Interestingly, also found endogenous melatonin seedlings. P -chlorophenylalanine p -CPA, inhibitor) declined -induced tolerance. Conclusions Taken together, our data show is involved promotion through regulation metabolism. Graphical

Язык: Английский

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Have All of the Phytohormonal Properties of Melatonin Been Verified?

International Journal of Molecular Sciences, Год журнала: 2024, Номер 25(6), С. 3550 - 3550

Опубликована: Март 21, 2024

Melatonin is a ubiquitous regulator in plants and performs variety of physiological roles, including resistance to abiotic stress, regulation growth development, enhancement plant immunity. exhibits the characteristics phytohormone with its pleiotropic effects, biosynthesis, conjugation, catabolism, effective concentration, shape location dose-response curves. In addition, CAND2/PMTR1, phytomelatonin receptor candidate belonging G protein-coupled receptors (GPCRs), supports concept melatonin as phytohormone. However, biochemistry needs be further characterized. particular, some experimental findings date cannot explained by known GPCR signaling mechanisms, so studies are needed explore possibility novel mechanisms.

Язык: Английский

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Enhancing drought tolerance in horticultural plants through plant hormones: a strategic coping mechanism

Frontiers in Plant Science, Год журнала: 2025, Номер 15

Опубликована: Янв. 20, 2025

Abiotic stresses are considered as a significant factor restricting horticultural crop productivity and quality. Drought stress is major environmental constraint among the emerging concerns. Plants have susceptibility to drought stress, resulting in marked decline production during last several decades. The development of effective strategies mitigate essential for sustainable agriculture food security, especially considering continuous growth world population. Several studies suggested that exogenous application phytohormone plants can improve tolerance by activating molecular physiological defense systems. Phytohormone pretreatment potential approach alleviating plants. In addition, melatonin, salicylic acid, jasmonates, strigolactones, brassinosteroids, gamma-aminobutyric acid phytohormones function regulators effects stress. These hormones frequently interact with one another survival drought-stressed environments. To sum up, this review will predominantly elucidate role related mechanisms across various horticulture species.

Язык: Английский

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Melatonin alleviated cadmium accumulation and toxicity by modulating phytohormonal balance and antioxidant metabolism in rice

Chemosphere, Год журнала: 2023, Номер 346, С. 140590 - 140590

Опубликована: Окт. 31, 2023

Язык: Английский

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Melatonin: A potential abiotic stress regulator

Plant Stress, Год журнала: 2023, Номер 10, С. 100293 - 100293

Опубликована: Ноя. 15, 2023

Abiotic stress adversely affects the metabolism and growth of plants, hampering their yield productivity. Melatonin is a ubiquitous, multifunctional, regulatory, non-toxic potential bio stimulator possessing pleiotropic effects in plant kingdom. It master regulator which plays critical role under abiotic conditions. Studies indicate increases endogenous levels melatonin plants. On other hand, exogenous has also been reported to mitigate plants by modulating proteins gene expressions. Melatonin-mediated reactive oxygen species scavenging defense system activation are primary mechanisms employed make alleviating stress. This review summarizes recent research concerning phytomelatonin biosynthesis, its detection techniques, We have focused on regulatory drought, heat, cold, heavy metal, acid rain, toxic chemical, light, herbicide Additionally, crosstalk with phytohormones considered.

Язык: Английский

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