During the last 25 years we have accomplished great advances in melatonin research, regarding antioxidant or anti-inflammatory functions, oncostatic actions, glucose metabolism regulation or plant physiology, among others. Of course, we should not forget the classical, circadian-related functions of the indole, which has recently brought up new and important findings. All together these new discoveries will likely lead the way in the next decade in terms of melatonin research. This special issue collects some of these new advances focused on different aspects of the indole.
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| http://dx.doi.org/10.3390/ijms21103645 | DOI Listing |
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Phenotyping and metabolomics insights into the effect of melatonin in lettuce under non-stress and salinity conditions.
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Melatonin (MLT) is an indole derivative that exhibits hormone-like activities in plants, regulating multiple aspects of growth and development. Due to its role in mitigating oxidative stress and facilitating osmoprotectant accumulation, MLT enhances abiotic stress tolerance, although the pathways and metabolic mechanisms involved remain unclear despite being studied in various crops. This work aimed to investigate the changes elicited by the exogenous MLT application at different concentrations (10, 50, 150 μM) and its role in mitigating the salinity stress in Lactuca sativa L.
View Article and Find Full Text PDFAscorbic acid is involved in melatonin-induced salinity tolerance of maize ( L.) by regulating antioxidant and photosynthetic capacities.
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January 2025
College of Agronomy, Specialty Corn Institute, Shenyang Agricultural University, 110866 Shenyang, Liaoning Province, China.
Melatonin (MT), an indole compound, can boost plant growth under abiotic stress conditions. This experiment aims to elucidate the synergistic effect of MT and ascorbic acid (AsA) in mitigating salinity stress by assessing the photosynthetic and antioxidant capacity of the maize inbred lines H123 and W961. The results indicated that exogenous MT and AsA significantly improved photosynthetic efficiency and biomass of maize under salinity stress.
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Department of Horticulture, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan.
Melatonin is considered an effective bio-stimulant that is crucial in managing several abiotic stresses including drought. However, its potential mechanisms against drought stress in fragrant roses are not well understood. Here, we aim to investigate the role of melatonin on plants cultivated under drought stress (40 % field capacity) and normal irrigation (80 % field capacity).
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The Second Affiliated Hospital of Zhejiang Chinese Medical University (Xinhua Hospital of Zhejiang Province), Hangzhou, Zhejiang, China.
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View Article and Find Full Text PDFDefect-Induced Electron Localization Promotes D2O Dissociation and Nitrile Adsorption for Deuterated Amines.
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Tianjin University, Department of Chemistry, #92, Weijin Road, Nankai District, Department of Chemistry, School of Science, Tianjin University, 300072, Tianjin, CHINA.
Electrochemical reductive deuteration of nitriles is a promising strategy for synthesizing deuterated amines with D2O as the deuterated source. However, this reaction suffers from high overpotentials owing to the sluggish D2O dissociation kinetics and high thermodynamic stability of the C≡N triple bond. Here, low-coordinated copper (LC-Cu) is designed to decrease the overpotential for the electrosynthesis of the precursor of Melatonin-d4, 5-methoxytryptamine-d4, by 100 mV with a 68% yield (Faraday efficiency), which is 4 times greater than that of high-coordinated copper (HC-Cu).
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