期刊
JOURNAL OF EXPERIMENTAL BIOLOGY
卷 221, 期 20, 页码 -出版社
COMPANY BIOLOGISTS LTD
DOI: 10.1242/jeb.187518
关键词
Habituation; Ecotoxicology; Pesticide; Herbicide; Fresh-water; Behaviour; Bio-indicator
类别
资金
- Marie Curie Actions FP7-IRSES [319015]
Glyphosate is the most widely used herbicide in the world. Over the past few years, the number of studies revealing deleterious effects of glyphosate on non-target species has been increasing. Here, we studied the impact of glyphosate at field-realistic doses on learning in mosquito larvae (Aedes aegypti). Larvae of A. aegypti live in small bodies of water and perform a stereotyped escape response when a moving object projects its shadow on the water surface. Repeated presentations of an innocuous visual stimulus induce a decrease in response due to habituation, a non-associative form of leaming. In this study, different groups of larvae were reared in water containing different concentrations of glyphosate that are commonly found in the field (50 mu g l(-1),100 mu g l(-1), 210 mu g l(-1) and 2 mu g l(-1)). Larvae reared in a glyphosate solution of 2 mg l(-1) (application dose) could complete their development. However, glyphosate at a concentration of 100 mu g l(-1) impaired habituation. A dose-dependent deleterious effect on leaming ability was observed. This protocol opens new avenues to further studies aimed at understanding how glyphosate affects non-target organisms, such as insects. Habituation in mosquito larvae could serve as a parameter for testing the impact of pollutants in the water.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据