Melatonin: A New Plant Hormone and/or a Plant Master Regulator?

Trends in Plant Science, Journal Year: 2018, Volume and Issue: 24(1), P. 38 - 48

Published: Nov. 13, 2018

Language: Английский

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Melatonin and its relationship to plant hormones

Annals of Botany, Journal Year: 2017, Volume and Issue: 121(2), P. 195 - 207

Published: Aug. 17, 2017

Plant melatonin appears to be a multi-regulatory molecule, similar those observed in animals, with many specific functions plant physiology. In recent years, the number of studies on plants has increased significantly. One most studied actions is its effect biotic and abiotic stress, such as that produced by drought, extreme temperatures, salinity, chemical pollution UV radiation, among others.

Language: Английский

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Effects of melatonin treatment on the postharvest quality of strawberry fruit

Postharvest Biology and Technology, Journal Year: 2018, Volume and Issue: 139, P. 47 - 55

Published: Feb. 3, 2018

Language: Английский

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Phytomelatonin: a universal abiotic stress regulator

Journal of Experimental Botany, Journal Year: 2017, Volume and Issue: 69(5), P. 963 - 974

Published: Dec. 19, 2017

Melatonin, a derivative of tryptophan, was first detected in plant species 1995 and it has been shown to be diverse regulator during growth development, stress responses. Recently, great progress made towards determining the detailed functions melatonin responses abiotic stress. Melatonin priming improves tolerance cold, heat, salt, drought stresses through regulation genes involved DREB/CBF, HSF, SOS, ABA pathways, respectively. As scavenger free radicals, also directly detoxifies reactive oxygen species, thus alleviating membrane oxidation. Abiotic stress-inhibited photosynthesis is partially recovered metabolites accumulate presence melatonin, leading improved growth, delayed leaf senescence, increased tolerance. In this review, we summarize interactions with phytohormones regulate downstream gene expression, protein stabilization, epigenetic modification plants. Finally, consider need for, approaches to, identification receptors components signaling transduction pathways.

Language: Английский

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Melatonin treatment reduces chilling injury in peach fruit through its regulation of membrane fatty acid contents and phenolic metabolism

Food Chemistry, Journal Year: 2017, Volume and Issue: 245, P. 659 - 666

Published: Oct. 10, 2017

Language: Английский

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Delay of Postharvest Browning in Litchi Fruit by Melatonin via the Enhancing of Antioxidative Processes and Oxidation Repair

Journal of Agricultural and Food Chemistry, Journal Year: 2018, Volume and Issue: 66(28), P. 7475 - 7484

Published: June 28, 2018

Melatonin acts as a crucial signaling and antioxidant molecule with multiple physiological functions in organisms. To explore effects of exogenous melatonin on postharvest browning its possible mechanisms litchi fruit, 'Ziniangxi' fruits were treated an aqueous solution at 0.4 mM then stored 25 °C for 8 days. The results revealed that strongly suppressed pericarp delayed discoloration during storage. treatment reduced relative membrane-leakage rate inhibited the generation superoxide radicals (O2-·), hydrogen peroxide (H2O2), malondialdehyde (MDA). markedly promoted accumulation endogenous melatonin; loss total phenolics, flavonoids, anthocyanins; enhanced activities enzymes, including dismutase (SOD, EC 1.15.1.1), catalase (CAT, 1.11.1.6), ascorbate peroxidase (APX, 1.11.1.11), glutathione reductase (GR, 1.6.4.2). By contrast, browning-related enzymes polyphenoloxidase (PPO, 1.10.3.1) (POD, 1.11.1.7) reduced. In addition, up-regulated expression four genes encoding repair oxidized proteins, LcMsrA1, LcMsrA2, LcMsrB1, LcMsB2. These findings indicate delay senescence by harvested fruit could be attributed to maintenance redox homeostasis improvement capacity modulation oxidatively damaged proteins.

Language: Английский

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Melatonin Mediated Regulation of Drought Stress: Physiological and Molecular Aspects

Plants, Journal Year: 2019, Volume and Issue: 8(7), P. 190 - 190

Published: June 26, 2019

Drought stress adversely effects physiological and biochemical processes of plants, leading to a reduction in plant productivity. Plants try protect themselves via activation their internal defense system, but severe drought causes dysfunction this system. The imbalance between generation scavenging reactive oxygen species (ROS) leads oxidative stress. Melatonin, multifunctional molecule, has the potential plants from adverse by enhancing ROS efficiency. It helps protection photosynthetic apparatus induced Melatonin regulates at molecular level, which results providing better resistance against In review, authors have discussed various aspects regulated melatonin under conditions, along with underlying mechanisms.

Language: Английский

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Melatonin in flowering, fruit set and fruit ripening

Plant Reproduction, Journal Year: 2020, Volume and Issue: 33(2), P. 77 - 87

Published: April 6, 2020

Language: Английский

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Melatonin limited ethylene production, softening and reduced physiology disorder in pear ( Pyrus communis L.) fruit during senescence

Postharvest Biology and Technology, Journal Year: 2018, Volume and Issue: 139, P. 38 - 46

Published: Feb. 3, 2018

Language: Английский

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Melatonin increases chilling tolerance in postharvest peach fruit by alleviating oxidative damage

Scientific Reports, Journal Year: 2018, Volume and Issue: 8(1)

Published: Jan. 10, 2018

Melatonin has been reported to alleviate chilling symptoms in postharvest peach fruit during cold storage, however, the mechanism involved is largely unknown. To better understand its role tolerance, here we investigated effects of melatonin on oxidative damage subjected after harvest. Chilling injury peaches was dramatically reduced by treatment. induced hydrogen peroxide (H2O2) content at early stage storage but inhibited accumulation thereafter. Meanwhile, also up-regulated expression genes antioxidant responses peaches. In addition, compared control fruit, treated with displayed higher transcript abundance ascorbic acid (AsA) biosynthetic and consequently increased AsA content. Our results suggested that response chilling, high H2O2 level initial time may work as a signaling molecule induce protective mechanisms via up-regulating antioxidative increasing On other hand, transient increase peaches, efficiently removed because activated systems, which associated tolerance melatonin.

Language: Английский

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