%0 Journal Article
%T Ultra-structual lesions in digestive gland of Sinonovacula constricta effected by dimethoate and triazophos<br>有机磷农药对缢蛏(Sinonovacula constricta)消化腺超微结构的影响
%A XUE Xiuling
%A YUAN Dongxing
%A FAN Guofeng
%A <br>薛秀玲
%A 袁东星
%A 樊国峰
%J 环境科学学报
%D 2007
%I 
%X The toxic effects of two typical organophosphorous pesticides (OPs), dimethoate and triazophos, on Sinonovacula constricta (Lamarck) living in the intertidal sediment were investigated in this study. S. constricta were cultured in the laboratory simulating the razor living surrounding. Samples were taken at 14d after exposed to OPs. The concentrations of OPs were determined with GC. Ultra-structure changes in digestive glandular epithelium of S. constricta were observed with an electron microscope. The ultra-structure of digestive gland was destroyed when exposed to dimethoate and triazophos. Symptoms had presented as lesions of nuclear, cellular organelles such as mitochondria, rough endoplasmic reticulum and Golgi apparatus. The nuclear became malformed. The nuclear envelopes were either convex or concave. And the chromatin became agglomerated or on the edge. Mitochondria swelled up, and the cristae of mitochondria disintegrated partly, some completely and became transparent electronic density area. The rough endoplasmic reticulum swelled up and ribosome fell from the rough endoplasmic reticulum. The lamina structure swelled up, dilated, and appeared vacuolation or even formed large vacuolated area. The study provided pathologic and morphologic evidences for the toxic effects of OPs on S. constricta.
%K dimethoate
%K triazophos
%K Sinonovacula constricta (Lamarck)
%K digestive gland
%K ultrastructural lesions<br>乐果
%K 三唑磷
%K 缢蛏
%K 消化腺
%K 超微结构
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=A76F3675E5D38432885B4C2D47EB9096&yid=A732AF04DDA03BB3&vid=DB817633AA4F79B9&iid=94C357A881DFC066&sid=C8C16F05E379B334&eid=FC6FCA5A7559F1FB&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=0&reference_num=27