Biotechnology Bulletin ›› 2025, Vol. 41 ›› Issue (6): 12-26.doi: 10.13560/j.cnki.biotech.bull.1985.2025-0056

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Research Progress in RNA Binding Proteins in Plant Disease Resistance

LYU Yue1(), ZHANG Jie-wei2(), WANG Bo1()   

  1. 1.School of Life Sciences, Yantai University, Yantai 264005
    2.Institute of Biotechnology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097
  • Received:2025-01-13 Online:2025-06-26 Published:2025-06-30
  • Contact: ZHANG Jie-wei, WANG Bo E-mail:lvyue19819083151@163.com;jwzhang919@163.com;wangbo@ytu.edu.cn

Abstract:

During their growth and development, plants are continuously exposed to complex environmental stresses that severely constrain their growth, agronomic traits, and productivity. To combat biotic stresses such as pathogen infection, plants have evolved multilayered sophisticated regulatory networks. In recent years, post-transcriptional regulation has emerged as a novel research hotspot in plant immunity, demonstrating unique advantages in the resistance to disease through dynamic regulation of messenger RNA (mRNA) metabolism. RNA-binding proteins (RBPs), functioning as core executors in plant resistance-to-resistane networks, act as "molecular switches" in plant-pathogen interactions by recognizing specific RNA motifs to regulate critical processes including pre-mRNA alternative splicing, mRNA stability, alternative polyadenylation (APA), translation efficiency, and RNA modifications. This review systematically elaborates RBP-mediated post-transcriptional regulatory mechanisms and their functions during plant-pathogen interactions. For instance, at the pathogen-recogned stage, RBPs regulate mRNA stability of immune receptors to enable rapid activation of defense signals. During disease resistance responses, RBPs mediate alternative splicing of resistance genes to generate transcript variants with distinct subcellular localization or functional activities. Recent studies also reveal novel pathways in plant immunity where RNA epigenetic modifications (e.g., m6A) regulate RBP recruitment efficiency. This article provides in-depth analysis of the multilayered defense systems constructed through RBPs and their molecular regulatory mechanisms, while proposing future research directions including deciphering RBP-mediated disease resistance mechanisms, modifying RBP regulatory elements through multi-omics integration, and developing novel disease-resistant breeding strategies. Comprehensive understanding of RNA regulatory codes in plant immunity will offer theoretical foundations for creating broad-spectrum resistant germplasm and provide crucial references for developing innovative green control strategies.

Key words: RNA binding protein, alternative splicing, translation, mRNA stability, alternative polyadenylation