| 17390777 |
Rouabhi R, Berrebbah H, Djebar MR: Evaluation of toxicity of two pesticides: flucycloxuron and diflubenzuron on a cellular model, Paramecium sp. Commun Agric Appl Biol Sci. 2006;71(2 Pt A):83-90.
The effect of two pesticides, the diflubenzuron (DFB) and the Flucycloxuron (FCX) has been studied on a cellular model: Paramecium sp., a ciliated protiste. The treatment with the DFB in the concentrations of 10 and 20 microg/ml reduces the growth of this protiste appreciably. The survey of the respiratory metabolism by the polarography technique (Oxygen electrode) shows a sensitive inhibition of the oxygen consumption by the studied protiste. In the case of the FCX, the treatment with the two concentrations (10 and 20 microg/ml) reveals an inhibition of the ciliated protiste growth; however, this pesticide inhibits the respiratory metabolism of ciliated protiste. This effect is a lot more marked with the FCX that with the DFB. The coloration with neutral red showed a perturbation in cuticle level, translated by the penetration quantity of the color in treated cells, especially at 20 microg/ml of FCX. |
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