Department of Animal Physiology, Institute of Biology and Biochemistry, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland.
Bull Environ Contam Toxicol. 2012 Nov;89(5):960-5. doi: 10.1007/s00128-012-0814-5. Epub 2012 Sep 15.
This study describes the toxicity of deltamethrin, in relation to its LD50 value, as well as variation in respiratory metabolism of the isopod species Porcellio scaber Latr kept at 3 temperature values (10, 22 and 30ºC). The low LD50 values obtained indicate that deltamethrin is a highly toxic pyrethroid for the crustacean tested, particularly at 10ºC. We also observed that, in all the 3 experimental temperatures, the deltamethrin toxicity was lower in females than in males. Particularly distinct differences between both sexes were visible at 10 and 30ºC, i.e. temperatures that are too low and too high for the species studied. Oxygen uptake measurement showed an increase in respiratory metabolism directly after intoxication. The most substantial increase, 64% in males and 80% in females, was observed at the temperature 10ºC, whereas at the other temperatures, it did not exceed 20%. During the successive experimental days, the respiratory consumption in P. scaber had a tendency to decrease, which was more visible at 10 and 30ºC, compared to the optimal temperature 22ºC.
本研究描述了氯菊酯的毒性与其 LD50 值的关系，以及在 3 种温度（10、22 和 30°C）下饲养的等足目 Porcellio scaber Latr 的呼吸代谢变化。获得的低 LD50 值表明，氯菊酯对所测试的甲壳类动物具有高度毒性，特别是在 10°C 时。我们还观察到，在所有 3 种实验温度下，氯菊酯对雌性的毒性均低于雄性。在 10 和 30°C 这两个对该物种来说温度过低和过高的温度下，两性之间的差异尤为明显。氧摄取测量显示，中毒后呼吸代谢直接增加。在温度为 10°C 时，雄性增加 64%，雌性增加 80%，增加幅度最大，而在其他温度下，增加幅度不超过 20%。在随后的实验天数中，P. scaber 的呼吸消耗有下降的趋势，与最适温度 22°C 相比，在 10 和 30°C 时更为明显。
