Behavioural mode of action of deet: inhibition of lactic acid attraction

被引:83
作者
Dogan, EB
Ayres, JW
Rossignol, PA
机构
[1] Oregon State Univ, Dept Entomol, Corvallis, OR 97331 USA
[2] Oregon State Univ, Coll Pharm, Corvallis, OR 97331 USA
关键词
Aedes aegypti; deet; lactic acid; olfactometer; attraction inhibition; mosquito repellent;
D O I
10.1046/j.1365-2915.1999.00145.x
中图分类号
Q96 [昆虫学];
学科分类号
摘要
Using the mosquito Aedes aegypti in a novel olfactometer that measures movement towards and away from a stimulus, we could not confirm that 'deet' is a repellent of mosquitoes. In the absence of a host, deet was an attractant and in the presence of a host, it was an inhibitor of attraction. This inhibition occurred in the gaseous phase and was therefore not the result of the physical properties of deet. We determined that L-lactic acid, a component of human sweat that is an attractant to mosquitoes, is the target of this inhibition, implying that lactic acid may be a bottleneck in the behavioural cascade preceding blood-sucking.
引用
收藏
页码:97 / 100
页数:4
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