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草业学报 ›› 2026, Vol. 35 ›› Issue (10): 237-251.DOI: 10.11686/cyxb2025402

• 综合评述 • 上一篇    

香柱菌属内生真菌影响宿主禾草微生物群落结构与多样性的研究进展

王美君(), 崔龙轩, 南志标, 夏超()   

  1. 兰州大学草种创新与草地农业生态系统全国重点实验室,兰州大学草地农业科技学院,甘肃 兰州 730020
  • 收稿日期:2025-09-30 修回日期:2025-11-28 出版日期:2026-10-20 发布日期:2026-09-09
  • 通讯作者: 夏超
  • 作者简介:E-mail: xiac@lzu.edu.cn
    王美君(2000-),女,陕西咸阳人,在读博士。E-mail: wmeijun2025@lzu.edu.cn
  • 基金资助:
    青海省帅才科学家负责制项目(2023-NK-147);“双一流”引导专项-队伍建设经费-科研启动费(561119208)

Research progress on the effects of Epichloë endophytes on the structure and diversity of microbial communities in host grasses

Mei-jun WANG(), Long-xuan CUI, Zhi-biao NAN, Chao XIA()   

  1. State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems,College of Pastoral Agriculture Science and Technology,Lanzhou University,Lanzhou 730020,China
  • Received:2025-09-30 Revised:2025-11-28 Online:2026-10-20 Published:2026-09-09
  • Contact: Chao XIA

摘要:

香柱菌属内生真菌主要定殖于宿主禾草的地上组织,并与宿主形成稳定的非致病性共生体系。该类真菌不仅增强宿主对生物和非生物胁迫的抗性,还能通过调控宿主生理代谢与多样微生物群落的互作,塑造根际、叶际及种带微生物群落的结构与功能。本研究综述了香柱菌属内生真菌影响禾草根际(与土壤)、叶际和种带微生物群落组成与多样性的研究进展。系统介绍了香柱菌属内生真菌通过改善宿主水分利用效率、调节根系分泌物、影响叶片次生代谢产物及改变土壤理化性质等,选择性地促进或抑制宿主植物不同部位特定微生物类群的定殖,并普遍降低病原菌丰度和菌根侵染率的相关研究成果。进一步阐释了此类调控作用在代际间垂直传播,及其助力宿主植物适应胁迫环境的潜在机制。综上,本研究介绍了香柱菌属内生真菌在禾草微生物群落调控及生态功能中的关键作用,总结梳理了其在抗逆育种、微生物资源开发及可持续草地管理方面已经发挥或潜在的应用价值。

关键词: 禾草, 香柱菌属内生真菌, 根际, 叶际, 微生物

Abstract:

Epichlo? endophytes primarily colonize the aboveground tissues of host grasses, forming a stable, non-pathogenic symbiotic system. These endophytes not only enhance the host’s resistance to biotic and abiotic stresses but also shape the structure and function of rhizosphere, phyllosphere, and seed-associated microbial communities by regulating host physiological metabolism and interacting with diverse microbial populations. This review summarizes recent research on the effects of Epichlo? endophytes on the composition and diversity of microbial communities in the rhizosphere (and soil), phyllosphere, and seeds of grasses. Present studies demonstrate that Epichlo? endophytes can selectively promote or inhibit the colonization of specific microbial groups in different plant compartments by improving host water-use efficiency, modulating root exudates, altering foliar secondary metabolites, and modifying soil physicochemical properties, while generally reducing pathogen abundance and mycorrhizal infection rates. This review further elaborates on the vertical transmission of these regulatory effects across plant generations and their potential mechanisms in enhancing host adaptation to environmental stresses. In conclusion, this review highlights the pivotal roles of Epichlo? endophytes in regulating grass-associated microbial communities and maintaining ecological functions, and summarizes their established and potential applications in stress-resilient breeding, microbial resource development, and sustainable grassland management.

Key words: grasses, Epichlo? endophyte, rhizosphere, phyllosphere, microorganisms