天然产物研究与开发 ›› 2024, Vol. 36 ›› Issue (4): 616-621.doi: 10.16333/j.1001-6880.2024.4.008

• 研究简报 • 上一篇    下一篇

鱼腥草乙酸乙酯萃取部位的化学成分及抗植物病原菌活性研究 

张   丽*,孙建鹏,巴其斌   

  1. 兰州城市学院化学工程学院,兰州 730070
  • 出版日期:2024-04-28 发布日期:2024-04-28
  • 基金资助:
    甘肃省科技计划创新基地和人才计划项目(20JR10RA293);甘肃省教育厅青年博士支持项目(2023QB-064)

Chemical constituents from ethyl acetate fraction of Houttuynia cordata and their anti-plant pathogens activity

ZHANG Li*,SUN Jian-peng,BA Qi-bin   

  1. School of Chemical Engineering,Lanzhou City University,Lanzhou 730070,China
  • Online:2024-04-28 Published:2024-04-28

摘要:

采用硅胶、大孔树脂、葡聚糖凝胶、MCI树脂、薄层色谱以及高效液相色谱等色谱分离方法,从鱼腥草(Houttuynia cordata)地上部分95%乙醇提取物的乙酸乙酯萃取部位分离得到10个化合物。运用质谱、核磁共振等波谱技术和文献对比法鉴定了其结构,分别鉴定为去氢催吐萝芙木醇(1)、5,6-环氧-3-羟基-β-紫罗兰酮(2)、黑麦草内酯(3)、pubinernoid A(4)、槲皮苷(5)、槲皮素(6)、阿福豆苷(7)、4-甲氧基苯-1,2-二醇(8)、4-羟基苯甲醛(9)、苯甲酸(10)。化合物1~4为首次从鱼腥草中分离得到的降碳倍半萜。对所有化合物进行了抗植物病原菌活性筛选,结果显示:在40 mg/mL浓度下,化合物5~7对禾谷镰刀菌、褐枝孢菌、番茄灰霉病菌、瓜类球腔菌和棉花枯萎病菌抑菌率介于38%~50%之间。

关键词: 鱼腥草, 分离鉴定, 降碳倍半萜, 抗植物病原菌活性

Abstract:

Ten compounds were separated and purified from ethyl acetate fraction derived from 95% EtOH extract of Houttuynia cordata by silica gel,macroporous resin,Sephadex LH20,MCI resin,thin-layer chromatography and high performance liquid chromatography.Their structures were identified on the basis of mass spectrometry(MS),nuclear magnetic resonance and comparison with the data in reported literatures. As a result,ten compounds were identified as dehydrovomifoliol (1),5,6-epoxy-3-hydroxy- 7-megastigmen-9-one (2),loliolide (3),pubinernoid A (4),quercitrin (5),quercetin (6),afzelin (7),4-methoxybenzene-1,2-diol (8),4-hydroxybenzaldehyde (9),benzoic acid (10).Compounds 1-4 were norsesquiterpenoids isolated from Houttuynia cordata for the first time. All the compounds were screened for their anti-plant pathogens activities,and at the concentration of 40 mg/mL,the inhibition rates of compounds 5-7 ranged from 38% to 50% against Fusarium graminearum, Fulria fulva,Botrytis cinerea,Mycosphaerlla melonis and Fusarium oxysporum f.sp. vasinfectum.

Key words: Houttuynia cordata, isolation and identification, norsesquiterpenoids, anti-plant pathogens activity

中图分类号:  Q946.8