The role of melatonin in tomato stress response, growth and development

Xie, Qiaoli; Cheng, Yanan; Tian, Yanling; Luo, Jianxun; Hu, Zongli; Chen, Guoping

doi:10.1007/s00299-022-02876-9

Cited by 34 publications

(24 citation statements)

References 97 publications

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“…The increase in CAT and APX is related to the increased H 2 O 2 level in Cd-treated plants. MT has positive effects on active ROS scavenging, antioxidant capacity, biosynthesis of sulfhydryl compounds, and the sequestration of Cd in vacuoles [ 61 ]. In this study, exogenous MT improved the antioxidant systems responsible for ROS scavenging.…”

Section: Discussionmentioning

confidence: 99%

Melatonin Involved in Protective Effects against Cadmium Stress in Wolffia arrhiza

Chmur

Bajguz

2023

IJMS

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Melatonin (MT) is a new plant hormone that protects against adverse environmental conditions. In the present study, the responses of Wolffia arrhiza exposed to cadmium (Cd) and MT were analyzed. Quantitative analysis of MT and precursors of its biosynthesis was performed using LC-MS-MS. The photosynthetic pigments and phytochelatins (PCs) contents were determined using HPLC, while protein and monosaccharides, stress markers, and antioxidant levels were determined using spectrophotometric methods. Interestingly, the endogenous level of MT and its substrates in W. arrhiza exposed to 1–100 µM Cd was significantly higher compared to the control. Additionally, the application of 25 µM MT and Cd intensified the biosynthesis of these compounds. The most stimulatory effect on the growth and content of pigments, protein, and sugars was observed in plants treated with 25 µM MT. In contrast, Cd treatment caused a decrease in plant weight and level of these compounds, while the application of 25 µM MT mitigated the inhibitory effect of Cd. Additionally, Cd enhanced the level of stress markers; simultaneously, MT reduced their content in duckweed exposed to Cd. In plants treated with Cd, PC levels were increased by Cd treatment and by 25 µM MT. These results confirmed that MT mitigated the adverse effect of Cd. Furthermore, MT presence was reported for the first time in W. arrhiza. In summary, MT is an essential phytohormone for plant growth and development, especially during heavy metal stress.

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Section: Discussionmentioning

confidence: 99%

Melatonin Involved in Protective Effects against Cadmium Stress in Wolffia arrhiza

Chmur

Bajguz

2023

IJMS

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“…Compared with control plants, the contents of organic acids, phenolics, flavonoids, peonidin derivatives, and apoptotic inhibitor proteins increased with melatonin treatment (Sun et al, 2016;Xie et al, 2022). Simultaneously, melatonin influences the expression of sucrose invertase genes and the net photosynthetic rate, thus increasing the solute content (e.g., soluble sugars) and pigment content (anthocyanins and carotenoids) in tomato, pear (Pyrus communis), and grape (Vitis labruscana) (Wang et al, 2022a;Xie et al, 2022). Melatonin triggers the metabolism of most hormones, e.g., melatonin increases ABA, H 2 O 2 , and ethylene content, participates in signaling molecules, and coordinates biochemical and developmental pathways that change the texture and nutritional quality (Xie et al, 2022).…”

Section: Melatonin Regulates Fruit Maturation and Post-managementmentioning

confidence: 99%

“…This stage is characterized by remarkable changes in the aroma, color, and flavor of the ripening fruit. Compared with control plants, the contents of organic acids, phenolics, flavonoids, peonidin derivatives, and apoptotic inhibitor proteins increased with melatonin treatment (Sun et al, 2016;Xie et al, 2022). Simultaneously, melatonin influences the expression of sucrose invertase genes and the net photosynthetic rate, thus increasing the solute content (e.g., soluble sugars) and pigment content (anthocyanins and carotenoids) in tomato, pear (Pyrus communis), and grape (Vitis labruscana) (Wang et al, 2022a;Xie et al, 2022).…”

Section: Melatonin Regulates Fruit Maturation and Post-managementmentioning

confidence: 99%

“…Simultaneously, melatonin influences the expression of sucrose invertase genes and the net photosynthetic rate, thus increasing the solute content (e.g., soluble sugars) and pigment content (anthocyanins and carotenoids) in tomato, pear (Pyrus communis), and grape (Vitis labruscana) (Wang et al, 2022a;Xie et al, 2022). Melatonin triggers the metabolism of most hormones, e.g., melatonin increases ABA, H 2 O 2 , and ethylene content, participates in signaling molecules, and coordinates biochemical and developmental pathways that change the texture and nutritional quality (Xie et al, 2022). In apple, grape, tomato, and blackberry (Rubus fruticosus), the content of endogenous melatonin is changeable and accumulates the most in the flesh during the rapid growth phase, which coincides with the change trend of ethylene in the skin, suggesting its role in regulating phytohormone synthesis (Verde et al, 2022).…”

Section: Melatonin Regulates Fruit Maturation and Post-managementmentioning

confidence: 99%

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Melatonin-mediated development and abiotic stress tolerance in plants

Pan

Li³

et al. 2023

Front. Plant Sci.

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Melatonin is a multifunctional molecule that has been widely discovered in most plants. An increasing number of studies have shown that melatonin plays essential roles in plant growth and stress tolerance. It has been extensively applied to alleviate the harmful effects of abiotic stresses. In view of its role in regulating aspects of plant growth and development, we ponder and summarize the scientific discoveries about seed germination, root development, flowering, fruit maturation, and senescence. Under abiotic and biotic stresses, melatonin brings together many pathways to increase access to treatments for the symptoms of plants and to counteract the negative effects. It has the capacity to tackle regulation of the redox, plant hormone networks, and endogenous melatonin. Furthermore, the expression levels of several genes and the contents of diverse secondary metabolites, such as polyphenols, terpenoids, and alkaloids, were significantly altered. In this review, we intend to examine the actions of melatonin in plants from a broader perspective, explore the range of its physiological functions, and analyze the relationship between melatonin and other metabolites and metabolic pathways.

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“…The pivotal roles of melatonin in the regulation of the antioxidant system, circadian rhythms, cardiac disease, Alzheimer’s disease, and physical health and emotional status were reported and provided the basis for future research directions [ 9 ]. Similarly, the social, economic, and other physical health-related benefits include the regulation of jet lag and immunity, sleep promotion, and its antitumor and antiaging characteristics [ 10 , 11 ] in animals. In plants, melatonin is a putative hormone involved in the regulation of plant growth and productivity, even under biotic and abiotic stress conditions [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Melatonin Function and Crosstalk with Other Phytohormones under Normal and Stressful Conditions

Khan

Ali

Manghwar

et al. 2022

Genes

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Melatonin was discovered in plants in the late nineties, but its role, signaling, and crosstalk with other phytohormones remain unknown. Research on melatonin in plants has risen dramatically in recent years and the role of this putative plant hormone under biotic and abiotic stress conditions has been reported. In the present review, we discuss the main functions of melatonin in the growth and development of plants, its role under abiotic stresses, such as water stress (waterlogging and drought), extreme temperature (low and high), salinity, heavy metal, and light-induced stress. Similarly, we also discuss the role of melatonin under biotic stresses (antiviral, antibacterial, and antifungal effects). Moreover, the present review meticulously discusses the crosstalk of melatonin with other phytohormones such as auxins, gibberellic acids, cytokinins, ethylene, and salicylic acid under normal and stressful conditions and reports melatonin receptors and signaling in plants. All these aspects of melatonin suggest that phytomelatonin is a key player in crop improvement and biotic and abiotic stress regulation.

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The role of melatonin in tomato stress response, growth and development

Cited by 34 publications

References 97 publications

Melatonin Involved in Protective Effects against Cadmium Stress in Wolffia arrhiza

Melatonin Involved in Protective Effects against Cadmium Stress in Wolffia arrhiza

Melatonin-mediated development and abiotic stress tolerance in plants

Melatonin Function and Crosstalk with Other Phytohormones under Normal and Stressful Conditions

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