Toxicity of synthetic piperonyl compounds to leaf-cutting ants and their symbiotic fungus
作者:Sandra R Victor、Fernando R Crisóstomo、Fabiana C Bueno、Fernando C Pagnocca、João B Fernandes、Arlene G Correa、Odair C Bueno、M José A Hebling、Maurício Bacci、Paulo C Vieira、M Fátima G F da Silva
DOI:10.1002/ps.333
日期:2001.7
ane, 1-(3,4-methylenedioxybenzyloxy)dodecane and compound 5, respectively, whereas with commercial piperonyl butoxide the mortality was 68%. The latter compound, which is known as a synergist insecticide, was as inhibitory to the symbiotic fungus as the synthetic compound 5. The possibility of controlling these insects in the future using compounds that can target simultaneously both organisms is discussed
由切叶蚁Atta sexdens培养的真菌Leucoagaricus gongylophorus的发育在体外被含有胡椒基的合成化合物抑制。此外,每天在人工饮食中添加了这些化合物的工蚁,其死亡率高于对照组。真菌生长的抑制随着碳侧链的大小从C1到C8的增加而增加,此后减小。1-(3,4-亚甲基二氧基苄氧基)辛烷(化合物5)是活性最高的化合物,在15微克ml-1的浓度下可抑制80%的真菌生长。对于工蚁,毒性作用始于化合物5,并随侧链碳原子数的增加而增加。因此,对于相同的浓度(100微克ml-1),对于1-(3,4-亚甲基二氧基苄氧基)癸烷,1-(3,4-),在饮食摄入8天后观察到的死亡率分别为82%,66%和42%亚甲基二氧基苄氧基)十二烷和化合物5,而使用商用胡椒基丁醚的死亡率为68%。后一种化合物,称为增效杀虫剂,与合成化合物5一样,具有抑制共生真菌的作用。讨论了将来使用可同时靶向两种生物的化合物控制这些昆虫的可能性。