摘要
采用菌丝生长速率法测定了3种牛心朴子提取物对番茄早疫病菌和番茄灰霉病菌的抑制作用。结果表明,当供试浓度为500mg/L时,牛心朴子总生物碱、牛心朴子甾体皂苷和牛心朴子总黄酮对番茄病原菌菌丝生长均有一定的抑制作用,其中牛心朴子总生物碱的抑菌活性最高,抑制率可达85%以上。牛心朴子总生物碱对番茄早疫病菌和番茄灰霉病菌的EC50分别为84.3471mg/L和135.8679mg/L。牛心朴子总生物碱可作为植物源杀菌剂进一步研究开发。
The antifungal action of three kinds of Cynanchum komarovii extracts by using a mycelial growth method were tested against pathogen of Alternaria solani and Botrytis cinerea. The results showed that total alkaloids, steroidal saponins and total flavonoids of Cynanchum koznarovii extracts had inhibiting effects to the mycelium growth of these pathogen when the extract concentration was 500 mg/L. Among of them,total alkaloids of Cynanchum komarovii had a better antifungal activity, and the inhibition rate was 85% against tomatoes pathogen. Meanwhile, the ECa0 of total alkaloids of Cynanchum komarovii against Alternaria solani and Botrytis cinerea were 84. 3471 mg/L and 135. 8679 mg/L respectively. Total alkaloids of Cynanchum komarovii could be botanical fungicide.
出处
《北方园艺》
CAS
北大核心
2012年第6期175-177,共3页
Northern Horticulture
基金
国家民委化工技术重点实验室资助项目(2007SY015)
关键词
牛心朴子
抑菌活性
番茄早疫病菌
番茄灰霉病菌
Cynanchum komarovii
antifungal activity
Alternaria solani
Botrytis cinerea
