链格孢菌代谢产物的抑菌活性  

Antifungal activities of Alternaria alternata metabolites

作　　者：周兵[1] 闫小红[1] 彭峰[1] 郭年梅[2] 钟娟[1] 殷帅文[1] 

机构地区：[1]井冈山大学生命科学学院,江西吉安343009 [2]福建农林大学植物保护学院,福建福州350002

出　　处：《福建农林大学学报（自然科学版）》2011年第4期416-420,共5页Journal of Fujian Agriculture and Forestry University:Natural Science Edition

基　　金：国家自然科学基金资助项目(30860054);江西省教育厅资助项目(GJJ08421);井冈山大学自然科学基金资助项目(JZ0726)

摘　　要：采用室内生物测定方法对链格孢菌代谢产物的抑菌活性进行了研究.结果表明:链格孢菌不同极性代谢产物对小麦赤霉病菌、水稻稻瘟病菌、油菜菌核病菌、烟草灰霉病菌及杨树溃疡病菌5种植物病原真菌产生不同程度的抑制作用,乙酸乙酯相的抑制作用最强,正丁醇相次之;乙酸乙酯相含量为800μg.mL-1时,其代谢产物对5种病原真菌的抑制率分别为38.11%、76.35%、47.81%、60.24%和57.24%.Antifungal activities of Alternaria alternata metabolites were studied in laboratory.The results showed that the different polar metabolite of Alternaria alternata had different inhibition effects on Fusarium graminearum,Magnaporthe grisea,Sclerotinia sclerotiorum,Botrytis cinerea and Dothiorella gregaria（five pathogens at 50-800 μg·mL^-1）,the inhibition effect of ethyl acetate metabolites was greater than butanol metabolites.When the content of ethyl acetate metabolites was 800 μg·mL^-1,the inhibition rates of ethyl acetate metabolites on above five pathogens were 38.11%,76.35%,47.81%,60.24% and 57.24%,respectively.

关 键 词：链格孢菌 代谢产物 抑菌活性 

分 类 号：S451.1[农业科学—植物保护]