Phytomelatonin: From Intracellular Signaling to Global Horticulture Market

Journal of Pineal Research, Год журнала: 2024, Номер 76(5)

Опубликована: Июль 19, 2024

ABSTRACT Melatonin ( N ‐acetyl‐5‐methoxytryptamine), a well‐known mammalian hormone, has been having great relevance in the Plant World recent years. Many of its physiological actions plants are leading to possible features agronomic interest, especially those related improvements tolerance stressors and postharvest life fruits vegetables. Thus, through exogenous application melatonin or by modifying endogenous biosynthesis phytomelatonin, some change can be made functional levels tissues their responses. Also, acting respective phytomelatonin enzymes, regulating expression tryptophan decarboxylase TDC ), tryptamine 5‐hydroxylase T5H serotonin ‐acetyltransferase SNAT ‐acetylserotonin O ‐methyltransferase ASMT caffeic acid COMT recently action deacetylases on intermediates offers promising opportunities for improving vegetables marketability. Other regulators/effectors such as different transcription factors, protein kinases, phosphatases, miRNAs, protein–protein interactions, gasotransmitters nitric oxide hydrogen sulfide were also considered an exhaustive vision. interesting aspects role autophagic responses, posttranslational reprogramming protein‐phosphorylation, ubiquitylation, SUMOylation, PARylation, persulfidation, nitrosylation described phytomelatonin‐mediated responses discussed, including relationship several plant hormones, chilling injury fungal decay alleviating. The current data about receptor (CAND2/PMTR1), effect UV‐B light cold storage damage presented discussed. All this focus new preservation quality

Язык: Английский

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The role of melatonin in delaying senescence and maintaining quality in postharvest horticultural products

Plant Biology, Год журнала: 2024, Номер unknown

Опубликована: Авг. 16, 2024

Abstract The postharvest lifespan of horticultural products is closely related to loss nutritional quality, accompanied by a rapid decline in shelf life, commercial value, and marketability. Melatonin (MT) application not only maintains quality but also delays senescence products. This paper reviews biosynthesis metabolism endogenous MT, summarizes significant effects exogenous MT on products, examines regulatory mechanisms MT‐mediated effects, provides an integrated review for understanding the positive role delay maintenance. As multifunctional molecule, coordinates other signal molecules, such as ABA, ETH, JA, SA, NO, Ca 2+ , regulate ripening senescence. Several metabolic pathways are involved regulation during senescence, including synthesis transduction plant hormones, redox homeostasis, energy metabolism, carbohydrate degradation pigment cell wall components. Moreover, regulates expression genes antioxidant systems, generation, fruit firmness colour, membrane integrity, storage. Consequently, could become emerging eco‐friendly preservative extend life maintain

Язык: Английский

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Melatonin Treatment Delays the Senescence of Cut Flowers of “Diguan” Tree Peony by Affecting Water Balance and Physiological Properties

Horticulturae, Год журнала: 2025, Номер 11(2), С. 181 - 181

Опубликована: Фев. 8, 2025

Tree peony (Paeonia suffruticosa Andr.), which is a traditional flower cultivated in China, rapidly becoming an important species the cut industry. Thus, extending vase life of tree flowers major goal Melatonin, new type antioxidant, plays regulatory role preservation flowers. Therefore, this study employed “Diguan” as test material to investigate preservative effects antioxidant melatonin on “Diguan”. We examined terms their morphology, lifespan, relative fresh weight, diameter, and water balance value after treatments with different concentrations (0.2, 0.3, 0.4, 0.5 mg·L−1) select optimal treatment concentration. Considered together, these analyses clarified Specifically, exogenous application positively affected by improving increasing soluble protein content enzyme activities, thereby prolonging ornamental period The weight branches significantly correlated protein, lifespan increases values branches, large correlation coefficient. It can be used indicator measure subsequent research. 0.4 mg L−1 was for preserving because its positive duration quality.

Язык: Английский

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α-lipoic acid maintains quality by modulating phenolic metabolism and antioxidant capacity in postharvest strawberry

Postharvest Biology and Technology, Год журнала: 2025, Номер 223, С. 113457 - 113457

Опубликована: Фев. 16, 2025

Язык: Английский

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Isolation and identification of Alternaria alstroemeriae causing postharvest black rot in citrus and its control using curcumin-loaded nanoliposomes

Frontiers in Microbiology, Год журнала: 2025, Номер 16

Опубликована: Март 4, 2025

Citrus black rot caused by the pathogen Alternaria alstroemeriae severely affects growth and production of citrus industry. In order to further elucidate fruit in Yunnan Province, pathogenic fungi causing were identified through isolation purification, pathogenicity testing, morphological characteristics, rDNA ITS sequence analysis. Meanwhile, we synthesized curcumin-loaded nanoliposomes, a potential management approach control postharvest pathogen, conducted vitro vivo experiment investigate effects different nanoliposomes treatments inhibitory effect A. . The results showed that diseases alstroemeriae, Rhizopus arrhizus, Aspergillus flavus Penicillium digitatum. had on , minimum fungicidal concentration (MIC) against hyphae was 10 μmol/L, 4MIC treatment significantly reduced occurrence test. Curcumin-loaded also enhanced activities enzymes PPO, APX, POD, PAL, GR CAT citrus, decreased O 2 − rate. accumulation ASA, GSH hydrogen radical scavenging rate reticulata Blanco ‘Orah’ increased fruit, which may be directly responsible for delayed onset disease. Furthermore, maintained quality delaying TSS, TA degradation higher level total phenolics flavonoid contents fruit. Overall, our findings revealed functioning as plant elicitor, could effectively modulate physiological enzyme confer resistance highlighted sustainable agricultural practices.

Язык: Английский

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ε-Poly-l-lysine Suppressed Decay Development and Maintained Storage Quality in Guava Fruit by ROS Level Regulation and Antioxidant Ability Enhancement

Agriculture, Год журнала: 2025, Номер 15(6), С. 654 - 654

Опубликована: Март 19, 2025

Guava fruit is susceptible to decay, leading losses in storability and quality. ε-Poly-l-lysine (ε-PL) a safe antimicrobial polypeptide that has proven be effective preserving produce’s In the present research, ε-PL, at multiple concentrations (1, 2 4 g/L), was adopted treat guavas, were stored 25 °C for 15 d. The results indicated ε-PL retarded guava decline enhanced its Treated guavas had better appearance, as well lower disease index, relative electrolytic leakage, weight loss, respiration intensity, a* b* values reducing sugar content. They also showed higher firmness, commercially acceptable rate, titratable acidity, L* value, total soluble sugar, vitamin C sucrose levels. optimal concentration of determined g/L. Furthermore, compared control treated with g/L exhibited levels superoxide anion, hydrogen peroxide malondialdehyde but antioxidant enzyme activities terms ascorbate peroxidase, catalase dismutase. These findings suggest raised enhance fruit’s ability. This, turn, reduced reactive oxygen species lipid peroxidation, ultimately improving guava’s Consequently, practical significance commercial application it suppresses decay stabilizes quality enhancing their postharvest marketability.

Язык: Английский

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Effects of Tea Polyphenols and Microporous Packaging Treatment on Storage and Preservation of Leaf-Vegetable Sweet Potatoes

Foods, Год журнала: 2025, Номер 14(7), С. 1191 - 1191

Опубликована: Март 28, 2025

Leaf-vegetable sweet potatoes incurred significant losses during storage, which resulted in a shortened shelf life and reduced commercial value. This study investigated the effects of tea polyphenols (TPs) fumigation microporous packaging (MP) 10 days at °C 90–95% RH. The results indicated that preservation followed order TP + MP > CK, with treatment effectively controlling degradation rate chlorophyll delaying leaf yellowing. In addition, increased activity antioxidant enzymes, especially catalase (CAT) ascorbate peroxidase (APX), also enhanced non-enzymatic systems (flavonoids, total phenolics, ascorbic acid). Pearson’s correlation analysis showed positive between decline postharvest quality leaf-vegetable increase reactive oxygen species (ROS) levels. provided robust theoretical technical foundation for development effective strategies potatoes.

Язык: Английский

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The Effect of Melatonin Applications on Quality Characteristics of Brussels Sprouts During Storage Period

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Год журнала: 2025, Номер 30(1), С. 340 - 353

Опубликована: Апрель 28, 2025

The edible portion of Brussels sprouts, their is recognized for its high nutritional value. These sprouts are rich in glucosinolate compounds, which play a crucial role enzyme regulation, DNA protection against degradation, and cancer prevention. However, the storage life relatively short. Thus, this study targeted to investigate impacts different melatonin concentrations (50 µM, 100 150 µM) on postharvest quality sprouts. were immersed solutions at 50 µM 5 minutes, with pure water serving as control. Following immersion, stored 1 ± 0.5 °C 90 5% relative humidity (RH) 28 days. Key criteria, including weight loss, titratable acidity, soluble solids content, vitamin C, chlorophyll, total phenolic antioxidant capacity, analyzed every seven days (on 7, 14, 21, 28). Melatonin treatments significantly influenced highest chlorophyll content was noted treatment, whereas maximum C levels recorded both control applications. greatest capacity achieved treatment. Conversely, loss not affected by In conclusion, application found effectively preserve allowing commercial up

Язык: Английский

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The PuERF27-PuMYB10-PuGSTF12 Module Regulates Melatonin-Induced Anthocyanin Biosynthesis in Pear Fruits

Journal of Agricultural and Food Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 30, 2025

Anthocyanins, flavonoids with strong antioxidant activity, give rise to a fruit peel color and provide health benefits. Studies have revealed that melatonin promotes anthocyanin accumulation. However, the function of endogenous hormones in this process remains elusive. Here, we investigated effect ethylene signaling on accumulation melatonin-treated pear fruit. Melatonin promoted while repressing production; its biosynthesis background ethephon pretreatment was eliminated. Transcriptome analysis PuERF27, melatonin-induced response factor (ERF), as candidate gene. Transient overexpression PuERF27 is essential for enhancing activating genes, whereas silencing repressed Yeast one-hybrid, electrophoretic mobility shift, GUS assays indicated could bind directly positively regulate PuMYB10 PuGSTF12 promoters. Further studies together PuMYB10, synergistically transactivates promoter. These results indicate may promote expression indirectly activate structural genes through thereby leading transport anthocyanins.

Язык: Английский

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Trisodium phosphate inhibits the shrinkage of passion fruit by suppressing ROS accumulation and mitigating oxidative damage

LWT, Год журнала: 2025, Номер 218, С. 117480 - 117480

Опубликована: Фев. 1, 2025

Язык: Английский

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