Endogenous melatonin deficiency aggravates high temperature-induced oxidative stress in Solanum lycopersicum L.

@article{Ahammed2019EndogenousMD,
  title={Endogenous melatonin deficiency aggravates high temperature-induced oxidative stress in Solanum lycopersicum L.},
  author={G. Ahammed and W. Xu and A. Liu and Shuangchen Chen},
  journal={Environmental and Experimental Botany},
  year={2019},
  volume={161},
  pages={303-311}
}
Abstract Melatonin is a natural biostimulating molecule that occurs in a number of plant species. Despite a short history of phytomelatonin research, the critical roles of melatonin in plant stress responses have extensively been documented. However, the majority of such studies constitute ‘pharmacological approach’ and studies exploring the relevance of endogenous melatonin are scanty. As an attempt to unmask the role of endogenous melatonin in plant thermotolerance, we generated melatonin… Expand
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References

SHOWING 1-10 OF 40 REFERENCES
Melatonin enhances thermotolerance by promoting cellular protein protection in tomato plants
TLDR
It is reported that endogenous melatonin levels increased with a rise in ambient temperature and that peaked at 40°C, and that melatonin promotes cellular protein protection through induction of HSPs and autophagy to refold or degrade denatured proteins under heat stress in tomato plants. Expand
Effects of Exogenous Melatonin on Methyl Viologen-Mediated Oxidative Stress in Apple Leaf
TLDR
It is concluded that exogenous melatonin mitigates the detrimental effects of oxidative stress, perhaps by slowing the decline in chlorophyll concentrations, moderating membrane damage and lipid peroxidation, increasing the activities of antioxidant enzymes, and changing the expression of genes for melatonin synthesis. Expand
Phytomelatonin: a universal abiotic stress regulator
TLDR
The interactions ofmelatonin with phytohormones to regulate downstream gene expression, protein stabilization, and epigenetic modification in plants are summarized and the need for, and approaches to, the identification of melatonin receptors and components during signaling transduction pathways are considered. Expand
Exogenous Melatonin Alleviates Cold Stress by Promoting Antioxidant Defense and Redox Homeostasis in Camellia sinensis L.
TLDR
This study provides strong evidence that melatonin could alleviate cold-induced adverse effects in tea plants by reducing oxidative stress through enhanced antioxidant potential and redox homeostasis. Expand
Melatonin Alleviates High Temperature-Induced Pollen Abortion in Solanum lycopersicum
TLDR
It is reported that irrigation treatment with melatonin effectively ameliorated high temperature-induced inactivation of pollen and inhibition of pollen germination in tomato (Solanum lycopersicum) plants, suggesting a novel function ofmelatonin to protect pollen activity under high temperature and support the potential effects of melatonin on reproductive development of plants. Expand
Melatonin mitigates cadmium phytotoxicity through modulation of phytochelatins biosynthesis, vacuolar sequestration, and antioxidant potential in Solanum lycopersicum L
TLDR
It is shown that optimal dose of melatonin could effectively ameliorate Cd-induced phytotoxicity in tomato and suggest that melatonin-induced enhancements in antioxidant potential, phytochelatins biosynthesis and subsequent Cd sequestration might play a critical role in plant tolerance to Cd. Expand
Delayed senescence of apple leaves by exogenous melatonin treatment: toward regulating the ascorbate–glutathione cycle
TLDR
H2O2 accumulation was inhibited by exogenous melatonin, which might have resulted from direct reactive oxygen species scavenging by melatonin and a great enhancement of ascorbate peroxidase (APX; EC 1.1.11.11), which acted on both mRNA and protein activity levels. Expand
Roles of melatonin in abiotic stress resistance in plants.
TLDR
Evidence indicates that environmental stress can increase the level of endogenous melatonin in plants and exogenously applied melatonin can also improve the ability of plants to tolerate abiotic stresses. Expand
Melatonin and its relationship to plant hormones
TLDR
Melatonin is an important modulator of gene expression related to plant hormones, e.g. in auxin carrier proteins, as well as in metabolism of indole-3-acetic acid (IAA), gibberellins, cytokinins, abscisic acid and ethylene. Expand
Melatonin pretreatment improves vanadium stress tolerance of watermelon seedlings by reducing vanadium concentration in the leaves and regulating melatonin biosynthesis and antioxidant-related gene expression.
TLDR
Results showed that seedlings pretreated with melatonin had a higher relative chlorophyll content, photosynthetic assimilation, and plant growth compared with non-melatonin pretreated seedlings, the first evidence that melatonin improves plant growth of watermelon seedlings under vanadium stress conditions. Expand
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