植物研究 ›› 2025, Vol. 45 ›› Issue (3): 386-392.doi: 10.7525/j.issn.1673-5102.2025.03.009

• 综述文章 • 上一篇    下一篇

核桃丛枝菌根真菌多样性及其作用机制研究进展

徐永杰1, 谭作枰1,2,3, 吴强盛2,3(), 刘小青2,3, 许晓宏2   

  1. 1.湖北省林业科学研究院,湖北省木本粮油林工程技术研究中心,武汉 430075
    2.长江大学西藏高原核桃产业研究所,荆州 434025
    3.长江大学香辛园艺植物种质创新与利用湖北省重点实验室,荆州 434025
  • 收稿日期:2024-06-25 出版日期:2025-05-20 发布日期:2025-05-23
  • 通讯作者: 吴强盛 E-mail:wuqiangsh@163.com
  • 作者简介:徐永杰(1981—),男,副研究员,主要从事核桃等经济林栽培生理研究。
  • 基金资助:
    湖北省“十四五”科技援藏项目(SCXX-XZCG-22016);中央财政林业科技推广示范资金项目(鄂[2024]TG18号);国家林业和草原局林业植物新品种及专利保护应用项目(KJZXXP202309);果树种质创新与利用湖北省重点实验室开放基金课题(GSSZ202306);湖北省重点研发计划项目(2022BBA153)

Advances in Diversity of Arbuscular Mycorrhizal Fungi and Their Functional Mechanisms in Walnuts

Yongjie XU1, Zuoping TAN1,2,3, Qiangsheng WU2,3(), Xiaoqing LIU2,3, Xiaohong XU2   

  1. 1.Hubei Academy of Forestry Science,Woody Grain and Oil Forest Engineering Technology Research Center of Hubei Province,Wuhan 430075
    2.Xizang Plateau Walnut Industry Research Institute,Yangtze University,Jingzhou 434025
    3.Hubei Key Laboratory of Spices & Horticultural Plant Germplasm Innovation & Utilization,Yangtze University,Jingzhou 434025
  • Received:2024-06-25 Online:2025-05-20 Published:2025-05-23
  • Contact: Qiangsheng WU E-mail:wuqiangsh@163.com

摘要:

核桃(Juglans)作为世界重要的经济林木,其生长发育与丛枝菌根真菌(arbuscular mycorrhizal fungi,AMF)之间密切关联。核桃根际AMF资源丰富,涵盖了10个属多个种,其多样性受种植模式(如套种)、土壤养分等影响,但深根性特征使核桃成为周围植被AMF繁殖体的储存库,并通过普通菌根网络实现了养分(如磷和碳)的有效再分配。该研究明确了AMF在促进核桃生长、提高成活率、促进养分(特别是磷)吸收,以及增强抗旱性方面的作用机制,并探究了AMF在提高和转移胡桃醌上的潜力。最后,对核桃菌根研究的未来发展方向进行了展望。

关键词: 核桃, 菌根, 间作, 普通菌根网络, 胡桃醌

Abstract:

Walnut(Juglans) is an important economic forest tree species in the world, whose growth and development are associated with arbuscular mycorrhizal fungi(AMF). The rhizosphere of walnuts is rich in AMF populations, with multiple species in ten genera. Planting patterns(e.g., intercropping) and soil nutrients have an impact on AMF diversity in the walnut rhizosphere. However, deep-rooted walnut trees serve as a reservoir for AMF propagules, allowing for efficient nutrient(e.g., phosphorus and carbon) redistribution among surrounding plants through the common mycorrhizal network. This review elucidated the mechanisms by which AMF enhanced walnut growth and survival, promoted nutrient(particularly phosphorus) uptake, and increased drought tolerance. It also explored the potential of AMF in enhancing and transferring juglone, a key secondary metabolite in walnuts. The paper concluded with a perspective on the study of walnut mycorrhizae.

Key words: walnut, mycorrhiza, intercropping, common mycorrhizal network, juglone

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