七种植物粗提物对常见植物病菌的抑菌作用研究

Fungistasis of extracts from 7 plants to common fungi

用生长速率法以辣椒丝核病菌、黄瓜黑星病菌、番茄早疫病菌和黄瓜枯萎病菌为供试菌种,对7种植物的12种二氯甲烷提取物进行了抑菌活性测定。结果表明:龙葵全株粗提物对辣椒丝核和黄瓜黑星病菌、龙葵果实提取物对黄瓜枯萎病菌、苍耳果实提取物对辣椒丝核病菌的抑制率均为100 %;黄花蒿(全株)提取物对黄瓜枯萎病菌、番茄早疫病菌和辣椒丝核病菌的菌丝抑制率都分别达到了78.5 %以上。

The fungistasis of dichloromethane extracts 7 plants from were tested by growth rate method with the common fungi such as Rhizoctonia solani, Cladosporium ucumerinum, Alternaria solani and Fusarium oxysporium. The results showed that the extracts from the whole of Solanum nigrum had 100 % inhibiting rates to Rhizoctonia solani and Cladosporium ucumerinum, fruits of Solanum nigrum also had 100 % inhibiting rates to Fusarium oxysporium, extracts from fruit of Xanthium sibiricum had 100 % inhibiting rates to Rhizoctonia solani; extracts from the whole of Artemisia annua had more than 78.5 % inhibiting rates to Fusarium oxysporium, Alternaria solani and Rhizoctonia solani.