J Integr Plant Biol ›› 2025, Vol. 67 ›› Issue (3): 563-581.DOI: 10.1111/jipb.13849

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  • 收稿日期:2024-09-29 接受日期:2025-01-07 出版日期:2025-03-01 发布日期:2025-03-31

Understanding brassinosteroid-centric phytohormone interactions for crop improvement

Wenchao Yin1,2, Nana Dong1,2, Xicheng Li1,2, Yanzhao Yang1,2, Zefu Lu1, Wenbin Zhou1, Qian Qian1,2, Chengcai Chu3,4* and Hongning Tong1,2*   

  1. 1. State Key Laboratory of Crop Gene Resources and Breeding/National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
    2. Key Laboratory of Grain Crop Genetic Resources Evaluation and Utilization, Ministry of Agriculture and Rural Affairs, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
    3. Guangdong Laboratory for Lingnan Modern Agriculture, and the State Key Laboratory for Conservation and Utilization of Subtropica lAgro‐Bioresources, South China Agricultural University, Guangzhou 510642, China
    4. Key Laboratory for Enhancing Resource Use Efficiency of Crops in South China, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China

    *Correspondences: Chengcai Chu (ccchu@scau.edu.cn); Hongning Tong (tonghongning@caas.cn; Dr. Tong is fully responsible for the distribution of all materials associated with this article)
  • Received:2024-09-29 Accepted:2025-01-07 Online:2025-03-01 Published:2025-03-31
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (32201704, 32425042, 32272141, U21A20208) and Innovation Program of Chinese Academy of Agricultural Sciences.

Abstract: Brassinosteroids (BRs) play a crucial role in regulating multiple biological processes in plants, particularly those related to crop productivity and stress tolerance. During their functioning, BRs engage in extensive and intricate interactions with other phytohormones, including auxin, cytokinins, gibberellins, abscisic acid, ethylene, jasmonates, salicylic acid, and strigolactones. These interactions facilitate the integration of internal and external signals, ultimately shaping the physiological status of the plant. In this review, we introduce BR metabolism and signaling and discuss their role in modulating agronomic traits that directly contribute to grain yield in rice (Oryza sativa), the model plant for crops. We also summarize recent advances in the crosstalk between BRs and other phytohormones in regulating agronomic traits in crops. Furthermore, we highlight significant research that provides insights into developing high-yielding and stress-resistant crop varieties from the perspective of hormone crosstalk. Understanding the genetic and molecular mechanisms through which BRs and other phytohormones collaboratively control agronomic traits offers new approaches for crop improvement.

Key words: agronomic trait, brassinosteroid, crop, crosstalk, phytohormone

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