密花石斛菌根菌分离鉴定及其代谢产物的测定

Isolation and identification of Fusarium sp. From mycorrhiza fungus in Dendrobium densiflorum and analyses of its metabolites

从引自福建的密花石斛（Ｄｅｎｄｒｏｂｉｕｍｄｅｎｓｉｆｌｏｒｕｍ）根部直接分离，得到真菌一株，经鉴定属镳刀属（Ｆｕｓａｒｉｕｍｓｐ．）菌株，在兰花菌根菌种类研究工作中尚属首次报道．将该菌进行液体培养，经检测未发现有维生素Ｂ１，却在其菌丝抽提液和菌培养液中明显检测到赤霉素．

It is a first record on Fusarium sp. isolated from the roots of Dendrobium densiflorum from Fujian Province. It did not produce or release vitamin B,. But gibberellins was detected in its mycelial extract and the culture medium.