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苦豆子主要分布在我国西北沙漠地区,是一种抗逆性极强的豆科多年生药用植物。本实验采用带毒平板菌丝生长法和琼脂打孔药剂扩散法测定了苦豆子地上部分乙醇粗提物及其石油醚、氯仿、正丁醇和水层的不同极性溶剂萃取物对瓜果腐霉、黄瓜枯萎病菌、番茄枯萎病菌、番茄早疫病菌、黄瓜角斑病菌和番茄疮痂病菌的抗菌活性。结果表明,正丁醇萃取部分和氯仿萃取部分对真菌生长有较强的抑制活性,正丁醇萃取部分对细菌亦有较强的抑制活性,推测苦豆子中的生物碱是主要的抗真菌成分,存在于正丁醇萃取部分的黄酮和三萜类配糖体等成分同时具有抗真菌和抗细菌活性。
Bitter beans are mainly distributed in the desert areas of northwestern China, is a highly resistant legume perennial medicinal plants. In this experiment, the toxic plate mycelium growth method and the agar diffusion method were used to determine the effects of different polar solvent extracts of the aboveground part of Sophora alopecuroides and its petroleum ether, chloroform, n-butanol and water on the rot of fruits and vegetables Fusarium oxysporum, Fusarium oxysporum, Fusarium oxysporum f. Sp., Alternaria solani, Xanthomonas campestris and tomato scab pathogen. The results showed that n-butanol extract and chloroform extract had a strong inhibitory activity on fungal growth and n-butanol extract had strong inhibitory activity on bacteria, suggesting that the alkaloids in Sophora alopecuroides were the main antifungal components , Flavonoids and triterpenoid glycosides present in the n-butanol extract have anti-fungal and antibacterial activity.