Melatonin and stress tolerance in horticultural crops: Insights into gene regulation, epigenetic modifications, and hormonal interplay

•Melatonin regulates gene expression in stressed horticultural crops, promoting stress tolerance.•Melatonin's impact on chromatin structure and epigenetic modifications enhances plant stress tolerance.•Melatonin's interaction with phytohormones and signaling molecules reveals complex plant...

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Bibliographic Details
Published inScientia horticulturae Vol. 322; p. 112432
Main Authors Kaya, Cengiz, Ugurlar, Ferhat
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.12.2023
Subjects
Epigenetic modifications
Gene expression
Melatonin
Phytohormones
Stress responses
Transcription factors
Phytohormones
Stress responses
Melatonin
Transcription factors
Epigenetic modifications
Gene expression
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Summary:•Melatonin regulates gene expression in stressed horticultural crops, promoting stress tolerance.•Melatonin's impact on chromatin structure and epigenetic modifications enhances plant stress tolerance.•Melatonin's interaction with phytohormones and signaling molecules reveals complex plant stress responses.•Melatonin offers potential for developing stress-tolerant crops and sustainable agriculture. Horticultural crops are crucial for food, nourishment, and economies worldwide, but they face challenges from biotic and abiotic stressors, impacting productivity and quality. Effective solutions to enhance stress tolerance and yield are imperative. Melatonin (MT) is a plant compound with great potential for modulating gene expression and stress responses in horticultural crops. This review article explores the mechanisms of MT-mediated gene regulation in horticultural crops under stress conditions, focusing on its interactions with key phytohormones such as abscisic acid (ABA), salicylic acid (SA), jasmonic acid (JA), ethylene (ET), auxin, and cytokines (CK). MT enhances stress tolerance in plants by regulating the expression of genes involved in stress response pathways, such as those related to reactive oxygen species (ROS) scavenging, chaperones, and transcription factors (TFs). MT affects chromatin structure, transcription factors, and gene expression, which are essential processes for plant stress tolerance. [Display omitted]
ISSN:0304-4238
1879-1018
DOI:10.1016/j.scienta.2023.112432