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  • Title: [Screening of endophytic fungi from Huperzia serrata for acetylcholinesterase inhibitory activity and its taxonomic identification].
    Author: Wang LL, Lv HF, Zhang L, Hua HX, Wang JH, Hu ZB, Li WK.
    Journal: Zhongguo Zhong Yao Za Zhi; 2012 Dec; 37(24):3701-5. PubMed ID: 23627163.
    Abstract:
    OBJECTIVE: To screen out fungus strains with acetylcholinesterase inhibitory activity from Huperzia serrata. METHOD: Endophytic fungi fermentation products from 59 H. serrata strains were stained with acetylcholinesterase hydrolyzed alpha-naphthaleneacetic ethyl ester and fast blue B salt, and screened for acetylcholinesterase inhibitory activity with thin-layer chromatography-bioautography. Target strains were classified and identified through the sequence analysis on 18s rDNA and 5.8s rDNA combined with morphological characteristics. RESULT: Fungus strain LQ2F01 from H. serrata showed positive color reaction in the screening for acetylcholinesterase inhibitory activity. The sequence analysis on 18s rDNA and 5.8s rDNA combined with morphological characteristics showed the strain LQ2F01 belonged to Acremonium. CONCLUSION: Endophytic Fungi LQ2F01 from H. serrata shows identical acetylcholinesterase inhibitory activity with the host plant, which is of great significance to the development of natural medicines and the studies on the relationship between the endophytic gungi and the host plant.
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