کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4427505 | 1309160 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Chronic exposure to chlorpyrifos reveals two modes of action in the springtail Folsomia candida
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Chronic exposure to chlorpyrifos reveals two modes of action in the springtail Folsomia candida Chronic exposure to chlorpyrifos reveals two modes of action in the springtail Folsomia candida](/preview/png/4427505.png)
چکیده انگلیسی
Organophosphates are popular insecticides, but relatively little is known about their chronic effects on ecologically relevant endpoints. In this paper, we examine a life-cycle experiment with the springtail Folsomia candida, exposed via food to chlorpyrifos (CPF). The results for all endpoints (survival, growth and reproduction) were analyzed using the DEBtox model. Growth was unaffected by CPF, even at concentrations causing severe effects on survival and reproduction. Model analysis suggests that CPF directly affects the process of egg production. For the short-term response (45 days), this single mode of action accurately agreed with the data. However, the full data set (120 days) revealed a dose-related decrease in reproduction at low concentrations after prolonged exposure, not covered by the same mechanism. It appears that CPF interacts with senescence by increasing oxidative damage. This assumption fits the data well, but has little consequences for the predicted response at the population level.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 145, Issue 2, January 2007, Pages 452-458
Journal: Environmental Pollution - Volume 145, Issue 2, January 2007, Pages 452-458
نویسندگان
Tjalling Jager, Trudie Crommentuijn, Cornelis A.M. van Gestel, Sebastiaan A.L.M. Kooijman,