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目的 :观察藐小棘隙吸虫体被的超微形态学特征。方法 :采用扫描电镜观察实验犬体内藐小棘隙吸虫成虫的体表结构。结果 :该吸虫体被除头冠、腹吸盘和虫体亚末端外 ,均具有体棘 ,其以螺旋式规律排列成行 ,其间距由前向后逐渐增宽 ,但体棘大小基本不变。感觉乳突有 3种 ,其一是带触毛的扣状乳突 ;另两种不具触毛 ,为无触毛扣状乳突和丘状乳突 ,前者数量最多 ,分布最广。虫体表面不平坦 ,呈一定规律的凹凸状 ,不同部位具不同的体表结构。结论 :该虫体被超微结构是长期适应肠道内寄生而逐渐进化的结果 ,与肠道内寄生生活相适应 ,其特征在分类学上有一定意义。
OBJECTIVE: To observe the ultrastructural features of spina bifida. Methods: Scanning electron microscopy was used to observe the body surface structure of Spodoptera litura adults in experimental dogs. Results: Except for the crown, abdominal sucker and the sub-extremities of the parasitoid, the parasitic body had body spines, which were arranged in a spiral pattern with the spacing broadened from anterior to posterior, but the body spine size remained unchanged. There are three kinds of feeling mastoid, one is with the hairy buckle papilla; the other two are not with the hair, no hair button buckled papillary and papillary processes, the former the largest number of the most widely distributed. Insect body surface is uneven, was a certain regular pattern of convex, different parts of different body surface structure. Conclusion: The ultrastructure of the parasites is the result of long-term adaptation to intestinal parasitism and gradual evolution, which is compatible with intestinal parasitism. Its characteristics have certain significance in taxonomy.