Melatonin reduces nanoplastic uptake, translocation, and toxicity in wheat

Li, Shuxin; Guo, Junhong; Wang, Tianya; Gong, Lei; Liu, Fulai; Brestič, Marián; Liu, Shengqun; Song, Fuqiang; Li, Xiangnan

doi:10.1111/jpi.12761

Cited by 46 publications

(7 citation statements)

References 53 publications

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“…Numerous studies supported our conclusions; for example, melatonin ameliorated maize seedling’s growth by improving drought tolerance and decreasing ROS ( Ahmad et al, 2021 ; Huang et al, 2019 ) as well as in cotton ( Gossypium hirsutum L.) ( Hu et al, 2021 ) and Tartary Buckwheat ( Fagopyrum tataricum (L.) Gaertn) ( Hossain et al, 2020 ). Melatonin alleviated the toxicity of nano plastics to wheat by activating the ROS scavenging system to maintain redox homeostasis and regulate the expression of aquaporin-related genes ( Li et al, 2021 ). Melatonin could positively regulate redox homeostasis and photosynthetic carbon assimilation in barley in low-temperature conditions ( Jiang et al, 2022 ).…”

Section: Discussionmentioning

confidence: 99%

Exogenous application of melatonin to mitigate drought stress-induced oxidative damage in Phoebe sheareri seedlings

Zhu

et al. 2023

PeerJ

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Background Drought stress is a major prevalent environmental factor impairing growth. Melatonin mitigates the impacts of drought stress on plants. However, melatonin’s role in Phoebe sheareri (Hemsl.) Gamble (P. sheareri) is unknown. We aimed to reveal the protective effects of melatonin on P. sheareri seedlings under drought conditions. Methods Melatonin was sprayed under drought or normal water conditions. The parameters, including growth, physiological factors, and phytohormones of P. sheareri, were examined. Results Compared to the normal control group, drought stress inhibited the growth of seedlings and significantly reduced the content of carotenoids, SOD, POD, APX, PPO, CAT, GR, and soluble sugars, and increased the contents of MDA, O2•−, proline, soluble proteins, ABA, and JA-Me in P. sheareri seedlings. However, melatonin treatment significantly reversed the adverse drought-induced responses and promoted the P. sheareri seedling’s growth. Moreover, the heatmap and principal component analysis suggested a high similarity in the behavior patterns of the six measured antioxidant enzymes in P. sheareri seedlings. Conclusion Our study reported for the first time that melatonin has a protective role in P. sheareri seedlings under drought-stress conditions. This role is related to ROS scavenging, activation of antioxidant enzymes, and crosstalk of phytohormones. This study provided a theoretical basis for improving the ability of P. sheareri adapted to arid environments.

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Section: Discussionmentioning

confidence: 99%

Exogenous application of melatonin to mitigate drought stress-induced oxidative damage in Phoebe sheareri seedlings

Zhu

et al. 2023

PeerJ

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“…Melatonin was reported to reduce the nanoplastic uptake by roots and their translocation to shoots by regulating the expression of genes associated with aquaporin ( TIP2-9 , PIP2 , PIP3 , PIP1-5 and PIP1.2 ). Melatonin enhanced the tolerance to nanoplastic toxicity by maintaining a better redox homeostasis and ameliorating the negative effects of nanoplastics on carbohydrate metabolism ( Li S. et al, 2021 ).…”

Section: Roles Of Melatonin In Plant Abiotic Stress Responsesmentioning

confidence: 99%

Melatonin-Mediated Abiotic Stress Tolerance in Plants

Zeng

Mostafa

et al. 2022

Front. Plant Sci.

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Melatonin is a multi-functional molecule that is ubiquitous in all living organisms. Melatonin performs essential roles in plant stress tolerance; its application can reduce the harmful effects of abiotic stresses. Plant melatonin biosynthesis, which usually occurs within chloroplasts, and its related metabolic pathways have been extensively characterized. Melatonin regulates plant stress responses by directly inhibiting the accumulation of reactive oxygen and nitrogen species, and by indirectly affecting stress response pathways. In this review, we summarize recent research concerning melatonin biosynthesis, metabolism, and antioxidation; we focus on melatonin-mediated tolerance to abiotic stresses including drought, waterlogging, salt, heat, cold, heavy metal toxicity, light and others. We also examine exogenous melatonin treatment in plants under abiotic stress. Finally, we discuss future perspectives in melatonin research and its applications in plants.

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“…Melatonin helps plants cope with abiotic stresses to a large extent. For example, it has recently been discovered that exogenous melatonin application in wheat reduces root uptake and subsequent translocation to the shoot of NPs with the regulation of gene expression in aquaporins through upregulation both in roots and leaves (Li et al, 2021a , b , c , d ). Melatonin induced ROS scavenging to improve redox homeostasis and increased plant tolerance to MPs/NPs toxicity.…”

Section: Remediationmentioning

confidence: 99%

Microplastic/nanoplastic toxicity in plants: an imminent concern

Roy

Dey

Jamal

2022

Environ Monit Assess

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The toxic impact of microplastics/nanoplastics (MPs/NPs) in plants and the food chain has recently become a top priority. Several research articles highlighted the impact of MPs/NPs on the aquatic food chain; however, very little has been done in the terrestrial ecosystem. A number of studies revealed that MPs/NPs uptake and subsequent translocation in plants alter plant morphological, physiological, biochemical, and genetic properties to varying degrees. However, there is a research gap regarding MPs/NPs entry into plants, associated factors influencing phytotoxicity levels, and potential remediation plans in terms of food safety and security. To address these issues, all sources of MPs/NPs intrusion in agroecosystems should be revised to avoid these hazardous materials with special consideration as preventive measures. Furthermore, this review focuses on the routes of accumulation and transmission of MPs/NPs into plant tissues, related aspects influencing the intensity of plant stress, and potential solutions to improve food quality and quantity. This paper also concludes by providing an outlook approach of applying exogenous melatonin and introducing engineered plants that would enhance stress tolerance against MPs/NPs. In addition, an overview of inoculation of beneficial microorganisms and encapsulated enzymes in soil has been addressed, which would make the degradation of MPs/NPs faster. Graphical Abstract

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Melatonin reduces nanoplastic uptake, translocation, and toxicity in wheat

Cited by 46 publications

References 53 publications

Exogenous application of melatonin to mitigate drought stress-induced oxidative damage in Phoebe sheareri seedlings

Exogenous application of melatonin to mitigate drought stress-induced oxidative damage in Phoebe sheareri seedlings

Melatonin-Mediated Abiotic Stress Tolerance in Plants

Microplastic/nanoplastic toxicity in plants: an imminent concern

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