SYMBIOTIC GERMINATION BETWEEN GASTRODIA ELATA AND FUNGAL SPECIES OF MYCENA
天麻种子与小菇属真菌共生萌发的研究*

Four fungal species of Mycena were identificated from the strains isolated from the protocorm and roots of Orchidaceae species.M. osmundicola was isolated from the proocorm of G.elata, M. orchidicola, M.dendrobii and M. anoectochila respectively separated from the roots of Cymbidium sinense, Dendrobium candidum and Anoectochilus roxburghii. The symbiotic germination test beteen G. Elata seeds and the above fungal species demonstrated that these fungal species can stimulate the seed germination, which means the species of Mycena may be the key mycorrhizal fungi of G elata, because there were no reports about the other fungal species which stimulate G.elata seed germination. Besides G. elata, the above species of Mycena also distributed the roots of the other orchids.