| 摘要: |
| 肠艾美耳球虫共进行3代裂殖生殖,第一代在肠粘膜层的肠腺细胞内、第二和第三代在肠腺和肠粘膜层的细胞内进行。子孢子和各代裂殖子侵入细胞的途径不相同。裂殖体的核分裂为典型的球虫型有丝分裂。裂殖子以外出芽方式形成。每代裂殖体都有大型和小型两种,裂殖子亦相应的有细型和粗型之分。裂殖子为单核,少部分为双核或多核。裂殖子表面被有3层膜,有24根膜下微管。锥体为半截形圆锥,其前方有两个前极环。锥体腔内有两根棒状体的颈部、两根微线和两根微管向后延伸。大型裂殖体和小型裂殖体的比例在不同世代不同。 |
| 关键词: 超微结构 球虫 裂殖生殖 艾美耳属 兔 |
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| Abstract: |
| Three generations of schizogony occurred in E.intestinallis.During the en- dogenous cycle,the first schizogony occurred in the intestinal glands cells,the other two gen- erations occurred in the cells of the intestinal glands and the mucous membrane.It was dif- ferent that the entrance mechanism of sporozoites and three generations merozoites,the for- mation of merozoites was Exogensis.There were two types of meronts in each generation. the small type contained stumpy merozoites and the large type contained... |
| Key words: ultrastructure coccidia merogony Eimeria rabbit |
