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湖北钉螺卵的扫描电镜观察

Observation on Eggs of Oncomelania Hupensis Hupensis with Scanning Electron Microscope
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摘要 目的 观察包裹钉螺卵的泥皮结构和泥皮下胶质膜 (三级卵膜 )表面构造。 方法 自东洞庭湖草滩钉螺孳生地采集泥皮无破损湖北钉螺螺卵 ,扫描电镜观察。 结果与结论 钉螺卵泥皮呈蜂窝状 ,由无定形腐植质小块和直径约 2 .6~ 9.2 μm的土壤颗粒粘接而成。泥皮有许多小洞 ,洞壁有细小皱褶。泥皮厚度约 6 0 μm,泥皮与内侧胶质膜接触面布满圆形或不规则圆形凹陷 ,未见小洞穿通迹象。胶质层表面有蛋白质纤维呈网状覆盖 ,并有锥状突起形成。 Objective To observe the structure of the mud hull packed Oncomelania eggs and the surface structure of colloid membrane called the third grade membrane of eggs. \ Methods\ Scanning electron microscopy was used to observe Oncomelania snail eggs with integral mud hull collected from eastern Dongting Lake. \ Results and Conclusion\ The mud hull of eggs was made of unshapen small humification combined with earth granules with a diameter of 2\^6-9\^2 μm. The mud hull in 60um thickness was honeycomb-like in shape with many small holes and small folds on the wall. There were many round or irregularly round hollownesses on the inner layer of mud hull that contacts colloid membrane but no hole through mud hull. There were some protein fiber networks covering on the colloid membrane and apophysis. The structure of the mud hull showed that the exchange of matter was maintained between eggs and outside, and the mud hull is of great importance to regulating temperature and moisture for the growth of eggs by preventing hydrosoluble substances from penetrating into eggs. The protein fiber networks act on gluing mud hull and buffering outside power. The dense glue membrane might be a main barricade to prevent \{pharmaceutical\} molecules from penetrating into eggs.
出处 《中国寄生虫学与寄生虫病杂志》 CAS CSCD 北大核心 2001年第3期179-181,共3页 Chinese Journal of Parasitology and Parasitic Diseases
关键词 钉螺卵 泥皮 胶质膜 扫描电镜 eggs of Oncomelania hupensis, mud hull, glue membrane, scanning electron microscope
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  • 1陈震平,中华医学杂志,1984年,18卷,240页 被引量:1
  • 2唐国柱,中华医学杂志,1984年,18卷,81页 被引量:1
  • 3张楚霸,中华医学杂志,1984年,18卷,139页 被引量:1

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