中国农业科学 ›› 2026, Vol. 59 ›› Issue (16): 3556-3576.doi: 10.3864/j.issn.0578-1752.2026.16.007

• 植物保护 • 上一篇    下一篇

小麦抗病机制研究进展与抗性创新利用策略

吴建辉1,3(), 曾庆东2,3, 刘胜杰2,3, 王晓杰2,3, 韩德俊1,3, 康振生2,3   

  1. 1 西北农林科技大学农学院, 陕西杨凌 712100
    2 西北农林科技大学植物保护学院, 陕西杨凌 712100
    3 作物抗逆与高效生产全国重点实验室, 陕西杨凌 712100
  • 收稿日期:2026-03-22 接受日期:2026-06-06 出版日期:2026-08-16 发布日期:2026-08-17
  • 通信作者:
    吴建辉,E-mail:
  • 基金资助:
    国家自然科学基金(32272088); 国家自然科学基金(32225041); 国家自然科学基金(32472103); 国家自然科学基金(32561143296); 国家重点研发计划(2021YFD1401000)

Advances in Mechanisms and Innovative Improvement Strategies for Wheat Disease Resistance

WU JianHui1,3(), ZENG QingDong2,3, LIU ShengJie2,3, WANG XiaoJie2,3, HAN DeJun1,3, KANG ZhenSheng2,3   

  1. 1 College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi
    2 College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi
    3 State Key Laboratory of Crop Stress Resistance and High-Efficiency Production, Yangling 712100, Shaanxi
  • Received:2026-03-22 Accepted:2026-06-06 Published:2026-08-16 Online:2026-08-17

摘要:

小麦(Triticum aestivum)对全球粮食安全至关重要,但其生产持续受到各类病原菌的侵害。发掘利用抗病资源是应对病害威胁、实现绿色防控的首选途径。本文在系统梳理小麦抗病分子机制研究进展的基础上,通过比较活体营养与死体营养型病原菌侵染特征,阐明了小麦与病原菌协同进化下的攻防演替策略;重点分析了抗病小体组装与等位基因特异性演变、激酶融合蛋白介导的模块化协作、非经典基因驱动的寄主生理稳态重构等免疫调控机制,并阐释了效应子通过劫持寄主免疫通路或利用超敏反应诱导感病的分子基础。基于上述免疫机制认识,总结了当前抗病资源发掘与精准改良的重要策略,包括构建抗病基因全景导航图、深度发掘野生近缘种资源以及通过关键遗传位点编辑实现免疫受体定向优化等。面对未来病原菌持续演化与多病害复合发生趋势,提出以防御激活与细胞死亡解耦、进化导向的通用免疫受体设计及多界免疫生态屏障构建为代表的新型抗性改良方向,为实现小麦广谱、持久抗性的理性设计提供理论依据与技术参考。

关键词: 小麦, 抗病基因, 抗/感病机制, 抗病性改良

Abstract:

Wheat (Triticum aestivum) remains vital to global food security, yet diverse pathogens constantly threaten its stable production. To address these threats, the identification and utilization of resistant genetic resources is the most effective and eco-friendly approach to manage disease epidemics. Based on a systematic review of the molecular mechanisms of wheat immunity, this paper compares the infection strategies of biotrophic and necrotrophic pathogens and elucidates the evolutionary arms race between wheat and its pathogens. Particular emphasis is placed on key immune regulatory mechanisms, including resistosome assembly and allele-specific evolution, modular cooperation mediated by kinase-integrated immune receptors, and host physiological homeostasis reprogramming driven by non-canonical resistance genes. In addition, the molecular basis by which pathogen effectors promote susceptibility through hijacking host immune pathways or exploiting hypersensitive response-associated cell death is discussed. Building upon these mechanistic insights, we summarize current strategies for resistance resource discovery and precision improvement, including the construction of panoramic resistance-gene atlases, the exploitation of novel resistance resources from wild relatives, and receptor optimization through targeted editing of key genetic loci. In response to the continuing evolution of pathogen populations and the increasing prevalence of multiple concurrent diseases, we further propose several emerging directions for resistance improvement, including the decoupling of immune activation from cell death, the evolution-guided design of universal immune receptors, and the establishment of multi-kingdom immune ecological barriers. These concepts provide a theoretical framework and technical foundation for the rational design of broad-spectrum and durable disease resistance in wheat.

Key words: wheat, disease resistance gene, resistance and susceptibility mechanism, improvement of disease resistance