丛枝菌根真菌在植物生态系统中的调控作用

Role of Arbuscular Mycorrhizal Fungi in Plant Ecosystems

丛枝菌根(Arbuscular Mycorrhizal,AM)真菌是一类能与大多数陆地植物形成共生体的根际微生物,在自然界分布广泛。该文从4个方面介绍丛枝菌根真菌相关研究进展,即(1)在植物个体水平上,AM真菌主要提高宿主植物的养分吸收能力,并对植物生育期及生殖能力产生影响;(2)在种群水平上,AM真菌通过庞大的地下菌丝网络改变植物间的资源分配,改变物种间竞争力,对植物种群生长发育及种间互作产生作用;(3)在生态系统中,AM真菌多样性与植物多样性具有高度相关性,同时对生态系统的生产力产生重要影响。

Arbuscular Mycorrhizal Fungi（AMF） were able to form a symbiosis with the majority of land plants.It widely distributed in the world.In this paper,the following aspects were introduced：（1）The level of individual plant,AM fungi could improve the ability of the host plant nutrient absorption and affect plant growth stages and reproductive capacity;（2）The level of plant populations,AM fungi had a great effect on the distribution of resources among plants through huge underground network of hyphae,change competitiveness between species,AM fungi played an important role in growth and development of plant populations;（3）The level of plant ecosystems,there was a correlation between AM fungi diversity and plant diversity.At the same time,AM fungi had an important effect on the productivity of ecosystems.