CuSO4 is often used to prevent and cure disease in aquaculture,but is harmful to molluscs when its concentration is higher than a certain level.Histological changes of stomach of Anodonta woodiana elliptica exposed to 0.01 mg·L-1,0.1 mg·L-1,1 mg·L-1 and 10 mg·L-1 of CuSO4 for different times were studied by making paraffin section stained with hematoxylin-eosin.The results showed that after A.woodiana elliptica was treated with 0.01 mg·L-1 CuSO4 for 7 and 14 days,cilium in stomach shortened.With the concentration increasing and the exposure time prolonging,cilium in stomach shortened significantly;muscular layer thinned;gland cells decreased and became eventually vacuoles.The diameter of style sac and the length of gastric shield increased when A.woodiana elliptica was exposed to CuSO4 concentrations lower than 10 mg·L-1 for 7 and 10 days,and the wall of ostium of A.woodiana elliptica thickened at CuSO4 concentration of 10 mg·L-1.
李雨奎. 椭圆背角无齿蚌胃的组织学及铜对其结构的影响[J]. , 2010, 29(5): 461-466.
LI Yu-kui. Histology of stomach of Anodonta woodiana elliptica and effect of heavy metal copper on its structure. , 2010, 29(5): 461-466.
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