许多大型真菌与高等植物的根系形成共生关系,通常把这种关系称为外生菌根。人们发现这种现象已有百年历史,在我国已知的有600种以上,例如伞菌类中的红菇属、乳菇属、鹅膏菌属、牛肝菌属,腹菌类的硬皮马勃菌属、豆包菌,以及子囊菌类的块菌属等。外生菌根菌的菌丝附着于植物根系上并深入根的皮层细胞间,扩大根系吸收水分和溶于水中营养物质的面积,并能产生刺激生长和具 Many large fungi form symbiotic relationships with higher plant roots, often referred to as ectomycorrhizae. It has been found that this phenomenon has been around for more than 100 years. There are over 600 known species in China, such as Russula, Lactarius, Amanita, Porcini, Puffball, Bacillus, as well as ascomycetes truffles and so on. Ectomycorrhizal fungi mycelium attached to plant roots and deep root cortex cells, expand the root absorb moisture and soluble in water, the area of ​​nutrients, and can stimulate the growth and production