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Uncovering the role of melatonin in plant stress tolerance

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Abstract

In recent years, melatonin has emerged as a popular research topic in the field of plant biology. Since melatonin is implicated in numerous plant developmental processes and stress responses, the exploration of its roles in regulating various physiological and biochemical processes contributing to plant growth and development under normal or stress conditions has become a rapidly progressing field. Melatonin mostly alleviates the adverse effects of environmental or abiotic stresses such as drought, salinity, low or high temperature and heavy metal stress. In addition, several reports have shown that melatonin induces stress tolerance in plants by modulating gene expression and protein modifications. However, such information is scattered and needs to be reviewed in a timely manner to assess the extent of successes and limitations to direct future research. In this review, we highlight the interactions of melatonin with phytohormones to regulate downstream gene expression, protein stabilization, and epigenetic modification in plants. Finally, we consider the need for, and approach to, the identification of melatonin receptors and components of melatonin signalling pathways.

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Authors and Affiliations

  1. Institute of Crop Science, Ministry of Agriculture and Rural Affairs Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, 310058, China

    Ahsan Ayyaz & Muhammad Ahsan Farooq

  2. Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, Pakistan

    Ahsan Ayyaz, Aneela Kanwal Shahzadi, Saba Fatima, Ghulam Yasin, Zafar Ullah Zafar & Habib-ur-Rehman Athar

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  1. Ahsan Ayyaz
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  2. Aneela Kanwal Shahzadi
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  3. Saba Fatima
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  4. Ghulam Yasin
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  5. Zafar Ullah Zafar
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  6. Habib-ur-Rehman Athar
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  7. Muhammad Ahsan Farooq
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Contributions

AA and AKS: wrote and designed the article, SF and GY: edit and revised the initial draft, ZAZ and HRA: supervised and revised the final draft of article, MAF: conceptualized, wrote and revised the article with contributions of all the authors.

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Correspondence to Muhammad Ahsan Farooq.

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Ayyaz, A., Shahzadi, A.K., Fatima, S. et al. Uncovering the role of melatonin in plant stress tolerance. Theor. Exp. Plant Physiol. 34, 335–346 (2022). https://doi.org/10.1007/s40626-022-00255-z

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