作　　者： ; ; ; ;

机构地区： 嘉应学院生命科学学院

出　　处： 《江西农业大学学报》 2012年第5期1014-1020,共7页

摘　　要： 以浸浴法对草鱼鱼种进行毒性试验,比较在0.045,0.091,0.181 mg/L 3个不同Hg2+质量浓度下,草鱼的肾脏和鳃组织中Na+/K+-ATPase活性变化规律及其组织结构的变化。结果表明:相对鳃而言,Hg2+对草鱼肾的Na+/K+-ATPase活性有较明显的抑制作用,且随着暴露时间的延长而加强。在组织结构上,草鱼肾小管出现萎缩的现象,肾小球未见明显症状;鳃小片出现弯曲、融合、脱落和顶端呈肿大等现象,肾、鳃的组织结构特征均具有时间及剂量效应。 The changes of Na ＋/K＋ -ATPase activity and histology of the kidney and gill in grass carp were studied in the bath method under three different Mercury in concentrations 0.045,0. 091,0. 181 mg/L. The resuits show that ： compared with that on gills, Hg2 had a more obvious inhibition on the activity of Na ＋/K ＋ - ATPase in kidney, and the longer the exposure, the stronger the inhibition. On the histology, renal tubule had the tendency of atrophy, while the glomerulus had no obvious symptom ; gill - lamellae had the manifestation of curve, fusion, disarticulation and enlargement on the top, which had the effects of time and dose.

关 键 词： 草鱼 汞 肾脏 鳃

领　　域： [农业科学] [农业科学]