天然产物研究与开发 ›› 2016, Vol. 28 ›› Issue (8): 1219-1222.doi: 10.16333/j.1001-6880.2016.8.008

• 研究简报 • 上一篇    下一篇

产紫杉醇内生真菌N-15的分离及鉴定

席晓圆,赵盛英,张鹏*,宋发军,雷世康,宁祎   

  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:2016-08-30 发布日期:2017-01-17

Isolation and Identification of Taxol-producing Endophytic Fungus N-15

XI Xiao-yuan,ZHAO Sheng-ying,ZHANG Peng*,SONG Fa-jun,LEI Shi-kang,NING Yi   

  1. College of Life Sciences,SouthCentral University for Nationalities,National Committee Key Laboratory for Biotechnology,Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China,Wuhan 430074,China
  • Online:2016-08-30 Published:2017-01-17

摘要: 产紫杉醇内生真菌的研究是解决紫杉醇药源紧缺问题的重要途径之一。本研究主要报道了从南方红豆杉树皮的内表皮中筛选得到一株产紫杉醇的内生真菌N-15,高效液相色谱法(high performance liquid chromatography,HPLC)检测结果表明其提取物具有与紫杉醇及其前体巴卡亭III、10-去乙酰巴卡亭III标准品一致的色谱特征峰和保留时间,表明真菌N-15可以产紫杉醇及其两个前体物。质谱法(mass spectrometry,MS)检测结果表明,N-15的发酵液提取物具有和紫杉醇标准品相同质谱特征峰,进一步说明N-15可以产紫杉醇。通过结合形态特征观察和18S rRNA序列分析,将N-15初步确定为黑孢霉属(Nigrospora sp.)真菌。

关键词: 红豆杉, 内生菌, 紫杉醇, 巴卡亭III, 黑孢霉属

Abstract: In this study,a taxol-producing endophyitc fungus N-15 was isolated from the inner barks of Taxus chinensis var.mairei.The results of high performance liquid chromatography (HPLC) analysis showed that the extracts of N-15 produced same chromatographic peaks and retention time as authentic taxol,Baccatin III and 10-deacetylbaccatin III (10-DAB),suggesting that the fungus N-15 can produce taxol,Baccatin III and 10-DAB.The results of mass spectrometry (MS) analysis showed that the fungal extracts of N-15 had the same mass peaks as authentic taxol,which further indicated that N-15 can produce taxol.The fungus N-15 was preliminarily identified to belong to Nigrospora sp. based on its morphology and conserved sequence of 18S rRNA.

Key words: Taxus, endophytes;taxol;baccatin III;Nigrospora sp.

中图分类号: 

Q93 R73