丛枝菌根真菌在外来植物入侵演替中的作用与机制

外来植物入侵不仅是环境、经济和社会问题，也是一个生理学和生态学问题，尤其是入侵植物与本地植物、入侵植物和本地土壤生物之间的相互作用决定外来植物入侵程度。丛枝菌根真菌（AMF）作为土壤中一类极为重要的功能生物，在外来植物入侵演替过程中发挥多种不同作用。文章系统总结了AMF对入侵植物个体和群体的影响，入侵植物与本地植物竞争中AMF发挥的促进和抑制作用；探讨了AMF与入侵植物的相互作用关系，以及环境因子对AMF一入侵植物关系的影响：对AMF在外来植物入侵演替中的作用机制进行了讨论。旨在为探索控制生物入侵的新途径、为我国开展外来植物入侵研究与防控实践提供新思路。

Functions and Mechanisms of Arbuscular Mycorrhizal Fungi in Succession of Exotic Invasive Plants

Exotic plant invasion causes serious environmental, economic and social problems, which is also a biological and ecological concern with respect to the impacts on native species and indigenous soil micro- organisms. Arbuscular mycorrhizal fungi （AMF）, one of the most popular and important functional soil micro- organisms, play multiple functions in ecosystems such as involvements of direct and indirect mechanisms in the succession of exotic plant invasion. This review summarizes the effects of AMF on the invaded plants at both individual and population levels, and their roles in enhancing or restraining plant invasion, as well as in competition between the invasive and native plants. Relationships between AMF and invasive plants, and environmental factors influencing their interactions are reviewed. The possible functional mechanisms of AMF in invasion succession of exotic plants are discussed. This study aims to contribute to the protection of biology and mycorrhizology, promoting research in the field and exploring new ways to control biological invasions. Therefore this essay may provide the insights in the roles of AMF in exotic plant invasion, and support related research in prevention, and control practices of plant invasion in China.