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首页> 外文期刊>Journal of applied toxicology >Histopathological effects of Thiodan on the freshwater snail, Galba truncatula (gastropoda, pulmonata).
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Histopathological effects of Thiodan on the freshwater snail, Galba truncatula (gastropoda, pulmonata).

机译：硫丹对淡水蜗牛Galba truncatula（腹足纲，pulmonata）的组织病理学影响。

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摘要

Histopathological alterations in three tissues, namely, digestive gland, foot and mantle of the freshwater snail Galba truncatula induced by Thiodan 35 EC, a commercial preparation of endosulfan, were studied in the laboratory. The snails were exposed to five sublethal concentrations of Thiodan, two of them higher concentrations at 0.33% and 0.65% in glass jars for short-term exposure (96 h) and three of them lower concentrations at 0.08%, 0.16% and 0.27% for long-term exposure (10, 20 and 30 days). Thiodan caused significant histopathological changes in the tissues of the snail, irrespective of the concentration of the pesticide and its exposure period. The histopathological changes included accumulation of amoebocytes in the hemolymphatic spaces between the tubules of the digestive gland, exudation in the lumen of tubules, expansion of hemolymphatic spaces between the tubules and increase of vacuolation and necrotic changes in the digestive cells. Disruption of columnar muscle fibers and alteration of epithelial layers were detected in the foot and mantle of the treated specimens. The number and size of mucous and protein cells in the foot and mantle also changed.
机译：在实验室研究了硫丹35 EC（硫丹的商品化制剂）诱导的淡水蜗牛Galba truncatula的消化腺，足和地幔三个组织的组织病理学变化。将蜗牛暴露于五种亚致死浓度的硫丹中，其中短期暴露（96 h）的浓度为0.33％和0.65％，其中三种较低的浓度为0.08％，0.16％和0.27％。长期接触（10、20和30天）。不论农药的浓度和暴露时间长短，硫丹都会引起蜗牛组织的重大组织病理学变化。组织病理学变化包括消化腺小管之间的淋巴间隙中的变形细胞积聚，小管腔中的渗出，小管之间的淋巴间隙的扩大以及消化细胞中空泡化和坏死性变化的增加。在处理过的标本的脚和地幔中检测到柱状肌纤维断裂和上皮层改变。脚和地幔中的粘液和蛋白质细胞的数量和大小也发生了变化。

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