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作 者 ：樊安利  李晓明  高锦明  王娟  马慧尼

期 刊 ：西北植物学报 2006年 9期

关键词：穿心莲内酯；乙酰穿心莲内酯；抑菌；化感；

Keywords:andrographolide, acetyl andrographolide, microbe inhibition, allelopathy,

摘 要 ：用乙酸酐对穿心莲内酯进行乙酰化,得乙酰穿心莲内酯,比较研究了乙酰穿心莲内酯和穿心莲内酯对部分细菌、霉菌、酵母和植物病原菌的抑菌活性以及对小麦、萝卜、青菜和黄瓜等农作物的化感作用.结果发现:乙酰穿心莲内酯对少数参试菌的抑制活性比穿心莲内酯弱,但对大多数菌的抑制活性比穿心莲内酯强,尤其是在较高浓度下,乙酰穿心莲内酯对枯草芽孢杆菌(Bacillus subtilis)、黑根霉菌(Rhigopus nigricans)、苹果酵母菌B13(Sour-dough starterB13)和辣椒晚疫病菌(Phytophthora capsici)的抑制活性明显强于穿心莲内酯;两者对参试植物种子萌发及幼苗根长和苗高均表现不同程度的"低促高抑"作用趋势.

Abstract:Andrographolide was acetylated with acetic anhydride to form acetyl andrographolide and then the anti-microbial activities of acetyl andrographolide and andrographolide to some bacteria,mildews and yeasts and phyto-pathogens and their allelopathic effects

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