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本文报告在我国内蒙古东北部呼伦贝尔草原布氏田鼠 (MicrotusbrandtiRadde)肝脏发现的呼伦贝尔泡状蚴(AlveolarishulunbeierensisTangetal ,2 0 0 1)的详细结构。它的母囊充满上下两部分结构不同的胚组织。各有数处胚细胞发生中心 ,其中有许多具多细胞核的胚母细胞的增生 ,由它们分裂许多能移动的胚细胞向母囊外迁移。各胚细胞团到宿主肝组织中 ,立刻被宿主的结缔组织细胞所包围 ,形成小雏囊。已成长的泡囊内没有多细胞核的胚母细胞 ,但有许多胚细胞团 ,它们也是大量分散地向囊外移行如同母囊一样。本寄生虫具有泡状蚴的基本特征 ,如泡囊内有行无性增殖的胚细胞组织 ,增生的胚细胞向囊外转移及引起宿主免疫反应 ,受白细胞、淋巴细胞及结缔组织的包围产生新泡囊 ,等等。但本虫种泡状蚴无论在早期母囊结构 ,或雏囊形成方式 ,均与具泡状蚴结构的多房棘球绦虫 (EchinococcusmultilocularisLeuckart,186 3和西伯利亚棘球绦虫 (EchinococcussibiricensisRauschandSchiller,195 4)的幼虫期十分不同。由于呼伦贝尔泡状蚴的成虫期尚未获得 ,故且先以呼伦贝尔泡状蚴命名 (唐崇惕等 ,2 0 0 1)。
This paper reports the detailed structure of Alveolarishulunbeierensis Tangetal (2001) found in the liver of Microtus bradti Radde liver in Hulunbuir, northeastern Inner Mongolia, China. Its mother capsule is filled with embryonic tissue with two different structures. Each of several germinal centers, many of which have multicellular nuclei, proliferate by dividing them into many moving embryonic cells. Each embryo cell mass into the host liver tissue, immediately surrounded by the host connective tissue cells, the formation of small vesicles. The growing vesicles do not have multicellular somatic embryos, but there are many clusters of embryonic cells that migrate extensively to the outside of the capsule as the mother cells. The parasites have the basic characteristics of the bubble-shaped larvae, such as the line of asexual proliferation of blastocysts within the blast tissue, proliferation of blastocysts to the extracapsular metastasis and cause host immune response, surrounded by white blood cells, lymphocytes and connective tissue resulting in new Blisters, and more. However, the Echinococcus multilocularis Leuckart (186 3) and Echinococcussibiricensis Rauschand Schiller (195 4), both in the early stage of the cysts and in the formation of the vesicles, The larval stage is quite different, and since the adult stage of the Hulunbeier bubble-shaped metacercaria has not been obtained, it is named after the Hulunbeier larvae (Tang et al., 2001).