Influences of wild,degradative,and rejuvenative Armillearia mellea on yield of Gastrodia elata and content of gastrodin

Objective By rejuvenation of degradative strain,the effects of Armillearia mellea to promote the growth of Gastrodia elata and to accumulate the gastrodin in G.elata could be recovered.Methods G.elata was inoculated with same variety of G.elata with A.mellea of wild strain,degradative strain for continuously asexual reproduction and rejuvenative strain,and the yield of G.elata and the content of gastrodin of G.elata were determined.Results The significant differences(P0.01) between wild strain and degradative strain,rejuvenative strain and degradative strain in the yield of G.elata and the content of gastrodin were discovered(P0.01).Conclusion Rejuvenation of degradative strain of A.mellea was made by artificial inducement of fruit body,and the effects of A.mellea to promote the growth of G.elata and to accumulate the gastrodin in G.elata could be recovered.