A Study on Ecological Characteristics of Suillus luteus(L.:Fr)Gray APPLICATION OF COMMERCIAL ECTOMYCORRHIZAL INOCULA ON CONTAINER-GROWN CHINESE PINE SEEDLINGS USED FOR AFFORESTATION IN CHINESE LOESS PLATEAU A Preliminary Study on the Isolating of Suillus luteus Chemical constituents of fruiting bodies from basidiomycete Suillus granulatus and their anti-HIV-1 activity Study on Molecular Identif ica tion and Genetic Rela tionships ofEctomycorrhiza l Stra ins of Su illus Gene STUDIES ON FERMENTATIVE CONDITIONS OF ECTOMYCORRHIZAL FUNGUS——SUILLUS GREVILLEI A Study on the Liquid Cultural Conditions for a Mycorrhiza Fungi (S.l) with Pinus massoniana The absorption of Zn2+ and Cd2+ by different strains of Suillus bovinus and its effect on the tolerance of Pinus tabulaeformis seedlings to Zn2+ and Cd2+