J Integr Plant Biol ›› 2025, Vol. 67 ›› Issue (7): 1706-1724.DOI: 10.1111/jipb.13882

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  • 收稿日期:2024-10-26 接受日期:2025-02-16 出版日期:2025-07-01 发布日期:2025-07-07

Role of serotonin in plant stress responses: Quo vadis?

Like Sun1,2,3†, Jiaxi Yin1,2,3†, Long Wang1,2,3†, Jingjing Li1,2,3, Can Hu1,2,3, Bo Liu1,2,3, Chenfan Zheng1,2,3, Jiale Chen1,2,3, Vasileios Fotopoulos4, Qingyao Shu1,2,3* and Meng Jiang1,2,3*   

  1. 1. Hainan Institute, Zhejiang University, Yazhou Bay Science and Technology City, Sanya 572025, China
    2. National Key Laboratory of Rice Biology and Breeding, The Advanced Seed Institute, Zhejiang University, Hangzhou 310058, China
    3. Zhejiang Provincial Key Laboratory of Crop Germplasm Innovation and Utilization, The Advanced Seed Institute, Zhejiang University, Hangzhou 310058, China
    4. Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology, Lemesos 3603, Cyprus

    †These authors contributed equally to this work.
    *Correspondences: Qingyao Shu (qyshu@zju.edu.cn); Meng Jiang (mengjiang@zju.edu.cn; Dr. Jiang is responsible for the distributions of the materials associated with this article)
  • Received:2024-10-26 Accepted:2025-02-16 Online:2025-07-01 Published:2025-07-07
  • Supported by:
    This study was supported by the National Science Foundation of China (32460077), the “Nanhai New Star” Technology Innovation Talent Platform Project of Hainan Province (NHXXRCXM202362), the Scientific Research Fund of Zhejiang Provincial Education Department (Y202353681), and the Initial Scientific Research Fund of Hainan Institute, Zhejiang University (0201‐6602‐A12203).

Abstract: Serotonin (5-hydroxytryptamine (5-HT)) is a pineal hormone and a secondary metabolite related to various hormonal and physiological functions at the organ, tissue, and cellular levels. It is considered increasingly important in regulating animal behavior, but the function of serotonin in plants is far less known. According to recent research, serotonin is vital for plant growth, development, and stress responses, achieved through transcriptional and phytohormonal interplay. Specifically, this review addresses critical gaps in the understanding of serotonin's function in plants by examining its biosynthesis, metabolism, and its multifaceted role in mitigating both abiotic stresses (salinity, drought, heat, cold, and heavy metals) as well as biotic challenges (pathogens, pests, and herbivores). As a pivotal player, it engages in a variety of significant cellular and molecular interactions, including those with reactive oxygen and nitrogen species (RONS), and various phytohormones such as auxin, abscisic acid (ABA), salicylic acid (SA), jasmonic acid (JA), ethylene (ET), and cytokinin (CK). Advances in serotonin-related research are anticipated to offer a valuable basis for uncovering the regulatory pathways by which serotonin impacts the resilience of crops against abiotic stress.

Key words: abiotic and biotic stress, biosynthesis, metabolism, phytohormone, reactive oxygen and nitrogen species, serotonin

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