摘要
黄连体内含有大量的生物碱,其中主要成份为小蘗碱.薄层扫描定量分析表明小蘗碱在主根、须根、叶片、叶柄中的含量分别为11.67%、1.95%、1.55%和1.00%.须根生物碱粗提物及小蘖碱对许多植物病原真菌的菌丝生长和孢子萌发有较强的抑制作用.小蘖碱对水稻白叶枯病菌(Xanthomonas campestris pv.oryzae)也有很强的抑菌作用.用生物碱粗提物防治水稻白叶枯病,1000倍液的防治效果为66.97%,与35%叶青双1000倍液的防治效果相当.
Isoquinoline alkaloids were extracted from Coptis chinensis Franch,and themain compoment of alkaloids is berberine.TLC scanning spectrophotometry quantitative analysisshowed that there were 11.67% berberine in rhizoma,and 1.95% berberine in rootlet.Alkaloids′ extract from rootlets could strongly inhibite hyphal growth of many plant pathogenicfungi.Spore germination of some fungi was inhibited by berberine.Berberine also showed violentantimicrobial activity to Xanthomonas campestris pv.oryzae,the extract of alkaloids controlledXanthomonas campestris pv.oryzae on rice,at 1000ppm,the effective percentage was 66.97%.
出处
《华中农业大学学报》
CAS
CSCD
北大核心
1991年第4期342-346,共5页
Journal of Huazhong Agricultural University
基金
国家自然科学基金
关键词
黄连
生物碱
抑菌作用
白叶枯病菌
Coptis chinensis Franch
alkaloid
inhibiting activity
Xanthomonas campestris pv.oryzae
