天然产物研究与开发 ›› 2018, Vol. 30 ›› Issue (12): 2133-2137.doi: 10.16333/j.1001-6880.2018.12.015

• 研究简报 • 上一篇    下一篇

蛇足石杉产石杉碱甲内生真菌SNZ-12的分离及鉴定

张宏庆,张恬,张学智,徐文静,李浩东,刘盼,张鹏*,宋发军   

  1. 中南民族大学生命科学学院 生物技术国家民委重点实验室 武陵山区特色资源植物种质保护与利用湖北省重点实验室,武汉 430074
  • 出版日期:2019-01-02 发布日期:2019-01-02
  • 基金资助:

    国家自然科学基金(31370118,31770134);湖北省本科高校“生物技术专业综合改革”试点项目(GJZ15006);中南民族大学基本科研业务费专项(CZT18005,18006,18007);校企合作项目(HZY14024,HZY17029);中南民族大学大学生创新创业项目(GCX1725,SCX1725,XCX16098,SKYCX17020)

Isolation and Identification of Huperzine A-producing Endophytic Fungus SNZ-12 from Huperzia serrata

ZHANG Hong-qing, ZHANG Tian, ZHANG Xue-zhi, XU Wen-jing, LI Hao-dong, LIU Pan, ZHANG Peng*, SONG Fa-jun   

  1. National Committee Key Laboratory for Biotechnology,Hubei Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China,College of Life Sciences,South-Central University for Nationalities,Wuhan 430074
  • Online:2019-01-02 Published:2019-01-02

摘要: 为了获取具有应用价值的产石杉碱甲内生菌,本文从蛇足石杉分离得到60株内生真菌,采用高效液相色谱法和质谱法分别检测各个真菌的提取物,发现内生真菌SNZ-12的提取物具有与石杉碱甲标品相近的色谱特征峰和保留时间(8.994 min)以及相同的质谱特征峰((M+H)+=243.1),说明内生真菌SNZ-12可以产石杉碱甲,其石杉碱甲产量约为1.01 mg/L;并通过结合内生真菌SNZ-12的形态特征和18S rDNA序列分析,将其鉴定为尖孢镰刀菌(Fusarium oxysporum)。本文结果为利用微生物发酵生产石杉碱甲研究提供了潜在的菌种资源。

关键词: 蛇足石杉, 内生真菌, 石杉碱甲, 尖孢镰刀菌

Abstract: To obtain Huperzine A-producing endophytes,sixty endophytic fungi were isolated from Huperzia serrata in this study,and the extract of each of the fungi was detected by HPLC technology and MS technology.The extract of one endophytic fungus numbered as SNZ-12 had the same chromatographic peak and retention time as that of authentic Huperzine A (8.994 min),as well as contained the same mass peak with authentic Huperzine A((M+H)+=243.1),indicating that the endophytic fungus SNZ-12 could produce Huperzine A.The Huperzine A yield of the endophytic fungus SNZ-12 was about 1.01 mg/L.Based on the morphological characteristics and 18S rDNA sequence conservation of the endophytic fungus SNZ-12,it was identified as Fusarium oxysporum.Our results provided a potential strain for the production of Huperzine A through microbial fermentation.

Key words: Huperzia serrata, endophytes, Huperzine A, Fusarium oxysporum

中图分类号: 

R284.1 Q93