Role of Melatonin in Directing Plant Physiology DOI Creative Commons

R. Karthikeyan,

Kalarani M. Karuppasami,

A. Senthil

et al.

Agronomy, Journal Year: 2023, Volume and Issue: 13(9), P. 2405 - 2405

Published: Sept. 18, 2023

Melatonin (MT), a naturally occurring compound, is found in various species worldwide. In 1958, it was first identified the pineal gland of dairy cows. MT an “old friend” but “new compound” for plant biology. It brings experts and research minds from broad field sciences due to its considerable influence on systems. The production process plants animals distinct, where has been expressed explicitly chloroplasts mitochondria plants. Tryptophan acts as precursor formation phyto-melatonin, along with intermediates including tryptamine, serotonin, N-acetyl 5-methoxy tryptamine. plays vital role growth phases such seed germination seedling crop significantly impacts gas exchange, thereby improving physio-chemical functions During stress, excessive generation accumulation reactive oxygen (ROS) causes protein oxidation, lipid peroxidation, nucleic acid damage, enzyme inhibition. Because directly antioxidant awakens defense system during stress reduces ROS, which results decreasing cellular oxidative damage. can enhance development response abiotic stresses drought, salinity, high temperature, flooding, heavy metals by regulating mechanism However, these reactions differ are based level kind stress. physiological towards development, tolerance stresses, approaches enhancing endogenous systems broadly reviewed suggested that steering compound directing major under changing climate future.

Language: Английский

Using Exogenous Melatonin, Glutathione, Proline, and Glycine Betaine Treatments to Combat Abiotic Stresses in Crops DOI Open Access
Memoona Khalid, Hafiz Mamoon Rehman, Nisar Ahmed

et al.

International Journal of Molecular Sciences, Journal Year: 2022, Volume and Issue: 23(21), P. 12913 - 12913

Published: Oct. 26, 2022

Abiotic stresses, such as drought, salinity, heat, cold, and heavy metals, are associated with global climate change hamper plant growth development, affecting crop yields quality. However, the negative effects of abiotic stresses can be mitigated through exogenous treatments using small biomolecules. For example, foliar application melatonin provides following: it protects photosynthetic apparatus; increases antioxidant defenses, osmoprotectant, soluble sugar levels; prevents tissue damage reduces electrolyte leakage; improves reactive oxygen species (ROS) scavenging; biomass, maintains redox ion homeostasis, gaseous exchange. Glutathione spray upregulates glyoxalase system, methylglyoxal (MG) toxicity oxidative stress, decreases hydrogen peroxide malondialdehyde accumulation, defense mechanisms, repairs, nitrogen fixation, phytochelatins. The proline enhances other physiological characteristics, osmoprotection, integrity plasma lemma, lipid peroxidation, pigments, phenolic acids, flavonoids, amino stress tolerance, carbon leaf content. glycine betaine growth, osmoprotection osmoregulation, relative water content, net rate, catalase activity, photorespiration, leakage, oxygen-evolving complex, chlorosis. Chemical priming has various important advantages over transgenic technology is typically more affordable for farmers safe plants, people, animals, while being considered environmentally acceptable. helps to improve quality quantity yield. This review summarizes discusses how melatonin, glutathione, proline, help crops combat stresses.

Language: Английский

Citations

74
Reactive oxygen species signaling in melatonin-mediated plant stress response DOI
Golam Jalal Ahammed, Zhe Li,

Jingying Chen

et al.

Plant Physiology and Biochemistry, Journal Year: 2024, Volume and Issue: 207, P. 108398 - 108398

Published: Jan. 24, 2024

Language: Английский

Citations

50
Melatonin Enhances the Photosynthesis and Antioxidant Enzyme Activities of Mung Bean under Drought and High-Temperature Stress Conditions DOI Creative Commons

Anitha Kuppusamy,

A. Senthil,

Kalarani M. Karuppusami

et al.

Plants, Journal Year: 2023, Volume and Issue: 12(13), P. 2535 - 2535

Published: July 3, 2023

Mung bean, a legume, is sensitive to abiotic stresses at different growth stages, and its yield potential affected by drought high-temperature stress the stage. Melatonin multifunctional hormone that plays vital role in plant defense mechanisms. This study aimed evaluate efficiency of melatonin under individual combined mung bean. An experiment was laid out with five treatments, including an exogenous application 100 µM as seed treatment, foliar spray, combination both treatment well absolute control (ambient condition) (stress without treatment). Stresses were imposed during bean's reproductive stage (31-40 DAS) for ten days. Results revealed significantly decreased chlorophyll index, Fv/Fm ratio, photosynthetic rate, stomatal conductance, transpiration rate through increased reactive oxygen species (ROS) production. Foliar concentration enhanced activity antioxidant enzymes such superoxide dismutase, catalase, ascorbate peroxidase metabolites involved osmoregulation ion homeostasis; thereby, it improves physiological yield-related traits bean

Language: Английский

Citations

30
Melatonin Mitigates Salt-Induced Growth Inhibition Through the Regulation of Carbohydrate and Nitrogen Metabolism in Tomato Seedlings DOI
Mohammad Shah Jahan, Guihua Li,

Dasen Xie

et al.

Journal of soil science and plant nutrition, Journal Year: 2023, Volume and Issue: 23(3), P. 4290 - 4308

Published: July 5, 2023

Language: Английский

Citations

27
Exogenous Melatonin Enhances the Yield and Secondary Metabolite Contents of Prunella vulgaris by Modulating Antioxidant System, Root Architecture and Photosynthetic Capacity DOI Creative Commons

Qingshan Chang,

Lixia Zhang, Shuangchen Chen

et al.

Plants, Journal Year: 2023, Volume and Issue: 12(5), P. 1129 - 1129

Published: March 2, 2023

Melatonin (MT) plays a number of key roles in regulating plant growth and secondary metabolite accumulation. Prunella vulgaris is an important traditional Chinese herbal medicinal which used for the treatment lymph, goiter, mastitis. However, effect MT on yield component content P. remains still unclear. In this research, we have examined influence different concentrations (0, 50, 100, 200, 400 μM) physiological characteristics, contents, biomass. The results showed that 50–200 μM had positive vulgaris. at 100 greatly increased activities superoxide dismutase peroxidase, contents soluble sugar proline, obviously decreased relative electrical conductivity, malondialdehyde hydrogen peroxide leaves. Furthermore, it markedly promoted development root system, photosynthetic pigments, improved performance photosystems I II coordination both photosystems, enhanced capacity addition, significantly dry mass whole spica accumulation total flavonoids, phenolics, caffeic acid, ferulic rosmarinic hyperoside These findings demonstrated application could effectively activate antioxidant defense system vulgaris, protect apparatus from photooxidation damage, improve absorption capacity, thereby promoting metabolites

Language: Английский

Citations

23
Alleviating sweetpotato salt tolerance through exogenous glutathione and melatonin: A profound mechanism for active oxygen detoxification and preservation of photosynthetic organs DOI
Sunjeet Kumar, Yang Liu, Mengzhao Wang

et al.

Chemosphere, Journal Year: 2024, Volume and Issue: 350, P. 141120 - 141120

Published: Jan. 8, 2024

Language: Английский

Citations

14
Residual effects of biochar and nano-modified biochar on growth and physiology under saline environment in two different genotype of Oryza sativa L. DOI

Haider Sultan,

Hafiz Muhammad Mazhar Abbas,

Mohammad Faizan

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 373, P. 123847 - 123847

Published: Jan. 1, 2025

Language: Английский

Citations

1
The Physiological Mechanism of Exogenous Melatonin Regulating Salt Tolerance in Eggplant Seedlings DOI Creative Commons
Yu Zhang, Jia Li, Handong Wang

et al.

Agronomy, Journal Year: 2025, Volume and Issue: 15(2), P. 270 - 270

Published: Jan. 22, 2025

There is little study on melatonin’s ability to prevent salt damage in eggplants, despite the fact that it a strong antioxidant plants has been found help mitigate variety of adverse challenges. In this study, we used “Anhui Eggplant No.8” as test material and simulated stress by irrigating roots with 150 mmol·L NaCl solution. Subsequently, treated eggplants different concentrations exogenous melatonin (0, 50, 100, 150, 200, 250 μmol·L) assessed plant traits an array physiological biochemical indices following application observe impact stress. Our results indicate at concentration 200 μmol·L can significantly alleviate inhibition eggplant photosynthesis under increasing content chlorophyll leaves activity enzymes. This leads notable increase levels non-enzyme antioxidants osmotic regulatory substances. As result, capacity enhanced, degree membrane lipid peroxidation reduced, growth seedlings effectively promoted, thereby strengthening tolerance seedlings. Fluorescence quantitative data analysis indicates SmCAT4 indeed gene positively regulates However, SmPPO family, did not find any genes respond research provides theoretical foundation for improving yield productivity quality protected farming clarifying mechanism which controls

Language: Английский

Citations

1
Exogenous Melatonin Application Induced Morpho-Physiological and Biochemical Regulations Conferring Salt Tolerance in Ranunculus asiaticus L. DOI Creative Commons
Eman Abdelhakim Eisa,

Péter Honfi,

Andrea Tilly-Mándy

et al.

Horticulturae, Journal Year: 2023, Volume and Issue: 9(2), P. 228 - 228

Published: Feb. 8, 2023

This study presents the effects of exogenous melatonin application at different concentrations (50, 100, and 200 μM) on morphological, physiological, antioxidant defense systems buttercup plant under salinity stress (4.5 5.5 dS·m−1 EC). Expectedly, negatively affected growth parameters, cell membrane stability, POX enzyme activity R. asiaticus compared to non-stressed plants. However, in a dose-dependent manner, foliar decreased salt stress-induced symptoms retarded vegetative growth, physiological characteristics, oxidative level. The results obtained, revealed significant effectiveness treatment μM concentration conditions by enhancing traits such as chlorophyll carotenoids content, relative water proline peroxidase (POD), electrolyte leakage rate, Na+ well delaying emergence flower buds stress. tolerance index percentages (STI%) for all estimated characters are also calculated studied parameters. uncovered beneficial effect reducing that can be used reduce ranunculus production.

Language: Английский

Citations

21
Synergistic effects of calcium and melatonin on physiological and phytochemical attributes of Dracocephalum kotschyi genotypes under salinity stress DOI
Farinaz Vafadar, Parviz Ehsanzadeh

Physiologia Plantarum, Journal Year: 2023, Volume and Issue: 175(3)

Published: April 12, 2023

Since regulatory roles of calcium (Ca) and melatonin (MT) in physiological responses plants to salinity stress are lacking, various Dracocephalum kotschyi genotypes (Bojnord, Urmia, Fereydunshahr, Semirom) were pretreated with exogenous Ca (5 mM), MT (100 μM), + the presence salt (75 mM NaCl). In addition measuring concentration phenolic compounds by high-performance liquid chromatography (HPLC), histochemical evaluations essential oils glandular trichomes leaf samples was performed light microscope. Salt reduced shoot fresh (SFW) dry weight (SDW), area (LA), relative water content (RWC), maximum efficiency photosystem II (Fv /Fm ), but enhanced total (TPC) flavonoids (TFC), concentrations, 2,2-diphenylpicrylhydrazyl (DPPH) radical scavenging capacity, electrolyte leakage (EL), proline, hydrogen peroxide (H2 O2 ) Na+ /K+ TPC leaves all D. genotypes. Foliar spraying Ca, MT, particularly on seedlings improved SFW, SDW, RWC, TPC, TFC, Fv , DPPH H2 EL, under both nonstress conditions. These findings indicate that crosstalk between synergistically improves tolerance, concentration, accumulation different

Language: Английский

Citations

21