丛枝菌根(arbuscular mycorrhizae-AM)是丛枝菌根真菌(Arbuscular mycorrhizal fungi，AMF)与约80%的陆生植物根系的共生结构，具有两种形态类型，Arum-type和Paris-type，菌根形态类型在植物科水平上表现出差异。本项目以广义百合科的植物（具有典型AM菌根）为研究对象，①研究不同属种植物（主要包括百合、知母、黄精、葱类、天门冬、黄花菜属）的AM菌根结构与形态类型，②研究Arum-type和Paris-type菌根形态的分布及结构特点（胞内菌丝、菌丝圈、丛枝圈和泡囊结构），③研究不同种植物根系共生与根际AM真菌的遗传多样性，确定AM群落组成及种类多样性，④分析与探索菌根形态类型及AMF多样性对植物系统分类学研究的科学价值。为探索真菌与植物的共生选择作用，以及进一步探索内蒙古自然植被与AM真菌协同演替进程及机制奠定理论基础。

Arbuscular mycorrhizal (AM) fungi form symbiotic associations with approximately 80% of terrestrial plants. The morphology of AM can be divided mainly into two types, Arum and Paris. There was a strong relationship between plant identity and AM morphological type, as the colonization types were mostly distinguished at the plant family level. The typical AM mycorrhizal plants, which belong to generalized liliaceae family, will be the researched object in this project. Morphological types of arbuscular mycorrhiza(AM) in liliaceae family plants will be examined in spring and autumn. The distribution and structural characteristics of Arum- and Paris- mycorrhizal types will be examined (including the intracellular hypha coils, arbuscule coils and vesicle structure). AM fungi identity and its genetic diversity will be identified in each plant roots symbiosis and in the rhizospheres soil. It will be made sure that is the AM community composition and species diversity. Study on the relationship between the mycorrhizal morphological types and AMF diversity with the plant classification and its significant for the plant phylogeny. This work will be benefit to study and understand the cooperation evolution relationship between the plant species with AM fungi and its effects on the vegetation succession process in the Inner Mongolia natural ecosystem.