某些原生动物无性生殖过程中的产物。如疟原虫进入红细胞后，成长为变形虫状的滋养体，
肠系膜淋巴结水肿，被膜下、小梁周围的淋巴窦和淋巴管中有大裂殖体和卵囊存在。
Mesenteric lymph nodes were edematous and some giant meronts and oocysts were found in their cortical sinuses and lymphatic vessels.
描述对免疫抑制小鼠肠上皮细胞寄生的隐孢子虫滋养体、裂殖体和大配子的超微结构及肠上皮细胞改变的透射电镜观察结果。
The ultrastructure of Cryptosporidium parvum, which parasitized on the surface of the intestine of the immunosuppressed mice, was studied by transmission electron microscopy.
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