Biology Department, College of Science, Sultan Qaboos University, PO Box 36, Muscat 123, Oman.
Tissue Cell. 2011 Feb;43(1):29-38. doi: 10.1016/j.tice.2010.11.002. Epub 2010 Dec 24.
The changes in the behavior of Aphanius dispar, a cyprinodont fish when exposed to different concentrations of temephos, an organophosphorus pesticide widely used to control mosquito larvae in aquatic habitats are noted. The histopathology of gills exposed to temephos is studied in detail using light microscopy (LM), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The gill lesions were seen in all exposed concentrations of 1, 5, 10 and 25 ppm and the magnitude of the damage increased with the increase in concentrations. The most adverse effects of temephos are the destruction of cartilage and the large-scale cell death. Other effects included the degradation of chloride cells (CCs), desquamation, epithelial lifting, hypertrophy and lamellar fusion. The histological changes of microridges did not follow a consistent pattern in exposed concentrations. However, lamellar curling and collapsing was common in all exposed fish.
当暴露于涕灭威(一种广泛用于控制水生栖息地蚊幼虫的有机磷农药)的不同浓度时,花鲈(一种鲤科小鱼)的行为发生了变化,这一点值得注意。使用光学显微镜(LM)、透射电子显微镜(TEM)和扫描电子显微镜(SEM)详细研究了暴露于涕灭威的鳃的组织病理学。在所有暴露于 1、5、10 和 25 ppm 的浓度中都观察到了鳃损伤,并且随着浓度的增加,损伤的程度也增加。涕灭威最不利的影响是软骨破坏和大规模的细胞死亡。其他影响包括氯化物细胞(CCs)的降解、脱落、上皮抬起、肥大和瓣融合。暴露浓度中微嵴的组织学变化没有呈现出一致的模式。然而,所有暴露的鱼的瓣卷曲和塌陷是常见的。