有钩与无钩豆状囊尾蚴头节超微形态的比较

发布时间：2018-03-25 14:40

本文选题：有钩豆状囊尾蚴　切入点：无钩豆状囊尾蚴　出处：《畜牧兽医学报》2016年12期

【摘要】：旨在比较观察有钩和无钩豆状囊尾蚴的头节在相对静止和相对运动时的超微结构变化。在屠宰检验和病理剖检过程中采取发育良好的豆状囊尾蚴,直接剪破囊泡从中取出豆状囊尾蚴;或用含10%兔胆汁生理盐水培养,使囊尾蚴从囊泡中翻出,制作样品,用扫描电镜观察和记录。结果显示:有钩和无钩豆状囊尾蚴在不同状态下的超微结构差异主要出现在顶突。有钩豆状囊尾蚴在相对静止时顶突的前端比较钝,通过皮肌柱与鹿角样的小钩相连。在轻度运动时皮肌柱收缩,小钩向外伸展,顶突前端变扁平。皮肌柱持续收缩时,顶突前端开始内陷,小钩向外斜上方伸展,形成喇叭口样结构。当顶突强烈收缩时,皮肌柱陷入顶突内形成圆筒,小钩沿圆筒口排列形成菊花样结构。无钩豆状囊尾蚴在相对静止时,其顶突扁平,如同数层圆饼叠放在一起,中央有一个圆形结节,周缘有齿轮状花纹。当顶突轻度运动时,中央部的结节内陷,出现瓣状结构,顶突周边形成半圆形环状结构,如同一个救生圈。强烈运动时,结节的瓣状结构打开,如同一个喇叭口。顶突周围的皮层向外张开,恰似轮胎样结构。在顶突的喇叭口与轮胎样结构之间有数条放射状皱襞。顶突变成一个车轮样结构。有钩和无钩豆状囊尾蚴的吸盘均位于顶突之后,可出现三种收缩纹,即环形收缩、纵形收缩和放射状收缩。有钩和无钩豆状囊尾蚴顶突的超微结构完全不同,在不同的运动状态中可出现各自特殊的结构变化。
[Abstract]:The aim of this study was to observe the ultrastructural changes of the cephalus of uncinate and uncinate lenticular cysticercosis at relative rest and motion. The well-developed lentiform cysticercaria was used during slaughter and pathological examination. Take out the lentiform cysticercaria directly from the blastocyst, or culture with 10% normal saline in the rabbit bile, so that the cysticercus can be extracted from the vesicle to make a sample. The results showed that the ultrastructural differences of uncinate and unhooked lenticercysticercus were mainly in the apical process of cysticercus cellulosae under different conditions, and the anterior end of the parietal process of uncinate lenticular cysticercus was obtuse when it was relatively static. It is connected to the antler hook by the cutaneous muscle post. During mild exercise, the cutaneous muscle column contracts, the small hook extends outward, the anterior end of the parietal process becomes flattened. As the pillar continues to contract, the anterior end of the parietal process begins to sink in, and the small hook extends to the top of the external oblique. When the apical process shrinks strongly, the cutaneous muscle column falls into the apical process to form a cylinder, and the small hook arranges along the cylinder mouth to form a chrysanthemoid structure. When the uncinate lentiform cysticercaria is relatively still, its apical process is flat. Like laminated cakes, there is a circular nodule in the center, with gear patterns around it. When the apex is slightly moved, the nodule in the center is trapped, with a petal-like structure, and a semicircular annular structure is formed around the parietal process. Like a lifebuoy. When in intense motion, the tuberous flap opens like a bell mouth. The cortex around the apical process opens outwards. Similar to the tire structure. There are several radial folds between the top horn mouth and the tire like structure. The apical process becomes a wheel like structure. The suckers with hook and no hook lentiform cysticercaria are located behind the apical process, and there are three kinds of contraction lines. The ultrastructure of cysticercus cysticercus cysticercus with hook and without hook is completely different and there are special structural changes in different motion states.
【作者单位】：河南科技学院;新乡市动物疫病预防控制中心;
【基金】：河南省重点科技攻关基金项目(132102110118;142102110042)
【分类号】：S852.7

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