V.A菌根(下称菌根)是一种菌根真菌与植物根系的共生体。它在农作物中普遍存在。它的主要作用是能促进植物对土壤中磷素的吸收及利用。随着时间的推移,世界上的磷矿资源越来越少;磷肥缺乏将成为一个突出问题。为了开辟磷肥新来源,对菌根进行深入研究,有其长远和现实意义。 V. mycorrhizal (hereinafter referred to as mycorrhiza) is a symbiont of mycorrhizal fungi and plant roots. It is prevalent in crops. Its main role is to promote plant absorption and utilization of phosphorus in the soil. With the passage of time, the world’s phosphate rock resources less and less; lack of phosphate will become a prominent issue. In order to open up a new source of phosphate fertilizer, mycorrhiza in-depth study, has its long-term and practical significance.