万寿菊根乙酸乙酯粗提物对枣缩果病的抑菌稳定性研究  

Studies on the stability of the extract from the roots of Tagetes eracta on fruit shrink disease of Ziziphus jujuba

作　　者：孟翔[1] 胡俊杰[2] 冀卫荣[3] 刘贤谦[3] 

机构地区：[1]广东省昆虫研究所,广州510260 [2]广州大学生命科学学院,广州510006 [3]山西农业大学林学院,太谷030801

出　　处：《植物保护》2013年第2期72-76,共5页Plant Protection

基　　金：林业公益性行业科研专项(201004041)

摘　　要：离体抑菌试验研究万寿菊乙酸乙酯粗提物对枣缩果病病原菌细交链孢菌[Alternaria alternate(Fr.)Keissler]稳定性表明:万寿菊乙酸乙酯粗提物热稳定性良好,短时间的温度提升可以提高粗提取物的抑菌活性;粗提取物在自然光、紫外光照射下具有较高的光活化活性,其抑菌活性随光照时间的增加而增强;此外,粗提取物在pH 7～8条件下能较好地保持其抑菌活性;其储藏温度应保持在4℃以下。In vitro bacteriostatic experiments using ethyl acetate extract of Tagetes eracta roots against the fungus Alternaria alternate infesting Ziziphus jujuba indicated that it had a good stability to heat. Rapid temperature as- cending could activate bacteriostatic activity of ethyl acetate extract. It also possessed high photoactivity under conditions of natural light and ultraviolet ray. The bacteriostatic activity was enhanced with the increase of illumi- nation time. Furthermore, it could keep a good antifungal activity under conditions of pH7-8, and the storage temperature should be kept below 4℃.

关 键 词：万寿菊 提取物 枣缩果病 生物活性稳定性 

分 类 号：S482.292[农业科学—农药学]