The objective of this course is to introduce the taxonomy, structure and application of tree mycorrhixae. The course contents included are: the function of mycorrhizae and their importance in ecosystem, the symbiont in VA mycorrhizae, the infection, development and morphology of VA mycorrhizae, the physiology of mineral nutrient and ecology of VA mycorrhizae, production of VA mycorrhizal inoculum, the symbiont in ectomycorrhizae, the structure, morphology and classification of ectomycorrhizae, growth and physiology of ectomycorrhizal fungi, production of metabolites by ectomycorrhizal fungi, growth and carbon metabolism of ectomycorrhizal plants, physiology of nutrient uptake by ectomycorrhizae, production and application of ectomycorrhizal fungus inoculum, ectendomycorrhizae in conifers.