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Tolerance of Forage Grass to Abiotic Stresses by Melatonin Application: Effects, Mechanisms, and Progresses

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  • Yufeng Fan

    (College of Grassland Science, Shanxi Agricultural University, Jinzhong 030801, China
    Key Laboratory of Model Innovation in Forage Production Efficiency, Ministry of Agriculture and Rural Affairs, Jinzhong 030801, China)

  • Lingling Li

    (College of Grassland Science, Shanxi Agricultural University, Jinzhong 030801, China
    Key Laboratory of Model Innovation in Forage Production Efficiency, Ministry of Agriculture and Rural Affairs, Jinzhong 030801, China)

  • Fenghui Guo

    (Industrial Crop Research Institute, Shanxi Agricultural University, Fenyang 032200, China)

  • Xiangyang Hou

    (College of Grassland Science, Shanxi Agricultural University, Jinzhong 030801, China
    Key Laboratory of Model Innovation in Forage Production Efficiency, Ministry of Agriculture and Rural Affairs, Jinzhong 030801, China)

Abstract

Climate change related abiotic stress has been potentially impacting the quantity and quality of forage grass. Melatonin, a multifunctional molecule that has been found to be present in all plants examined to date, plays a crucial role in improving forage grass tolerance to both biotic and abiotic stresses. However, research on melatonin’s role in forage grass is still developing. In this review, the effects of melatonin application on abiotic stress are the primary topic, and we try to find relative mechanisms. In order to determine whether melatonin has a good effect on forage grass, we compared and summarized the adapting ability of different forage grasses under abiotic stress after melatonin application in aspects of growth and development, photosynthesis, antioxidant systems, plant hormone interactions, and ion homeostasis. According to part of the data, we found that different forage grasses exhibited varying responses to endogenous melatonin content and exogenous melatonin dose applications. Meanwhile, the regulatory mechanisms of melatonin application include the expression of chlorophyll synthesis and degradation genes, electron transport and phosphorylation genes, stress regulation pathway genes, and plant hormone synthesis genes. We propose possible future studies that can further explore the metabolic pathways of melatonin and the molecular mechanisms of melatonin regulation of abiotic stress in forage grass. Specifically, research can focus on elucidating the signaling pathways, gene expression of regulatory networks, and interactions with other plant hormones. This will provide valuable theoretical and practical guidance for adapting to climate change and forage grass development.

Suggested Citation

  • Yufeng Fan & Lingling Li & Fenghui Guo & Xiangyang Hou, 2024. "Tolerance of Forage Grass to Abiotic Stresses by Melatonin Application: Effects, Mechanisms, and Progresses," Agriculture, MDPI, vol. 14(2), pages 1-13, January.
  • Handle: RePEc:gam:jagris:v:14:y:2024:i:2:p:171-:d:1325113
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    References listed on IDEAS

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    1. Miao, Lijuan & Sun, Zhanli & Ren, Yanjun & Schierhorn, Florian & Müller, Daniel, 2021. "Grassland greening on the Mongolian Plateau despite higher grazing intensity," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 32(2), pages 792-802.
    2. Ewa Mackiewicz-Walec & Marzenna Olszewska, 2023. "Biostimulants in the Production of Forage Grasses and Turfgrasses," Agriculture, MDPI, vol. 13(9), pages 1-33, September.
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