Mokhtar-Maamouri F
Arch Inst Pasteur Tunis. 1980 Sep;57(3):191-205.
The electron microscopy study of fertilization points out that in the Cestode Acanthobothrium filicolle, fertilization occurs in the oviduct. After the coiling of the spermatozoon around the oocyte, the plasma membrane of the sperm fuses with that of the ovum. All the elements of the spermatozoon (the nucleus, the two axonemes, the microtubules and the crested body pass into the cytoplasm of the oocyte). For the first time it is shown that the oocyte eliminates a residue of fertilization that could be the result either from the rejection of all the sperm organites (axonemes, microtubules, crested body) or the polyspermy or both. This fertilization residue comprising a degenerated nucleuslike body has been observed only in Onchobothriidae, Tetraphyllidea Cestoda.
受精的电子显微镜研究指出，在绦虫类的丝状棘头绦虫中，受精发生在输卵管。精子围绕卵母细胞盘绕后，精子的质膜与卵子的质膜融合。精子的所有成分（细胞核、两根轴丝、微管和嵴体）进入卵母细胞的细胞质。首次表明，卵母细胞会排出受精残余物，这可能是所有精子细胞器（轴丝、微管、嵴体）被排斥、多精受精或两者兼有的结果。这种包含一个退化的核样体的受精残余物仅在带吻绦虫科、四叶目绦虫中观察到。
