中国中药杂志

2008, v.33(24) 2905-2907+2953

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罹病西洋参根内主要人参皂苷含量的变化
Variation of ginsenosides in infected roots of American ginseng(Panax quinquefolium)

高微微;焦晓林;毕武;何春年;
GAO Wei-wei,JIAO Xiao-lin,BI Wu,HE Chun-nian(Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094,China)

摘要(Abstract):

目的:研究根部病害对西洋参根不同部位主要皂苷含量的影响。方法:采集田间同一栽培地发生不同程度根腐病的西洋参根,采用HPLC测定不同发病程度根韧皮部、木质部中人参皂苷Rg1,Re,Rb1的含量;结果:不同程度罹病西洋参根韧皮部及木质部中Rg1含量均无显著变化;发病严重的根韧皮部Re含量显著降低(P<0.05),而木质部含量显著升高(P<0.05);Rb1在中度及重度发病西洋参根韧皮部及木质部中含量均显著降低(P<0.05)。结论:不同严重程度的西洋参病根中Rg1,Re,Rb1呈现复杂的变化,导致Rg1,Re,Rb1在总皂苷中的比例发生变化。
To study the infected root of Panax quinquefolium on the contents of ginsenosides.Method: The contents of three major ginsenosides Rg1,Re and Rb1 were determined by HPLC compared quantitatively between the different degree infected roots and normal root in the phloem and xylem.Result: Rg1 in phloem and xylem of varying degrees infected root showed no significant difference,but Rb1 decreased 26.3% and 28.3% respectively in medium and serious infected roots comparing to normal root.Re in phloem of seriously infected roots decreased in xylem significantly.Conclusion: The results indicate that the variation of ginsenosides in different degrees infected roots exists and the proportion of Rg1,Re and Rb1 in the total ginsenosides changes.

关键词(KeyWords): 西洋参;根腐病;人参皂苷;韧皮部;木质部
Panax quinquefolium;rot root;ginsenosides;phloem;xylem

Abstract:

Keywords:

基金项目(Foundation): 北京市自然科学基金项目(6072025);; 国家“十一五”科技支撑计划项目(2006BAI09B03)

作者(Author): 高微微;焦晓林;毕武;何春年;
GAO Wei-wei,JIAO Xiao-lin,BI Wu,HE Chun-nian(Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094,China)

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