Meng X Q, Wang S S, Zhou W Q, Wang B X, Han W S, Wang L
Scan Electron Microsc. 1986(Pt 3):1015-8.
Eggs of Trichuris trichiura were prepared for scanning electron microscopy (SEM) by the dimethylsulfoxide freeze-cracking method. The egg-shell and oocyte were examined by SEM. The egg has a chitinous shell which consists of more than 10 layers of dense lamellae. The shell is bordered by a limiting membrane. An operculum and a collar made of chitinous shell together form the opercular area. The operculum is an empty cavity. The chitinous fibers of the egg-shell in this area are diffuse and loose, with numerous micropores or spaces. The egg-shell in this area therefore appears to form a fine tubular network. The oocyte is an undifferentiated cell with a biconcave drum-like shape. The perivitelline space is conspicuous at both ends of the cell.
通过二甲基亚砜冷冻裂解方法制备用于扫描电子显微镜（SEM）观察的鞭虫虫卵。用扫描电子显微镜检查卵壳和卵细胞。虫卵有一层几丁质外壳，由10多层致密薄片组成。外壳由一层限制膜界定。一个卵盖和由几丁质外壳构成的环共同形成卵盖区。卵盖是一个空腔。该区域虫卵外壳的几丁质纤维呈弥散状且松散，有许多微孔或间隙。因此该区域的虫卵外壳似乎形成了一个精细的管状网络。卵细胞是一个未分化的细胞，呈双凹鼓状。卵黄周隙在细胞两端很明显。
