Richard Allen (University of Hawaii), R. Wolf (2011) CIL:36786, Paramecium caudatum, cell by organism, eukaryotic cell, Eukaryotic Protist, Ciliated Protist. CIL. Dataset

Details of the origins of the cytopharyngeal ribbons and the quadrulus associated ribbons. At first view the cytopharyngeal ribbons look like they might arise next to basal bodies but it is clear that the cytopharyngeal ribbons arise only from the filamentous reticulum. The quadrulus associated ribbons appear to be analogous to the postciliary microtubules of the somatic ciliature that they curve posteriorly from the quadrulus. However quadrulus associated ribbons do pass very close or even touch the ends of the cytopharyngeal ribbons without becoming part of these latter ribbons. Discoidal vesicles bind to the anterior sides (observer’s left) of the cytopharyngeal ribbons and the smaller set of ribbons lies at its posterior side against the cytopharyngeal membrane. The tubular fingers of the alveoli pass between the cytopharyngeal ribbons next to the nodes of the filamentous reticulum from which the cytopharyngeal ribbons originate. Finally a row of parasomal sacs is seen along the dorsal edge of the quadrulus from which coated vesicles form. TEM taken on 5/23/73 by R. Wolf with Hitachi HU11A operating at 75kV. Neg. 16,250X. Bar = 0.5µm.

细胞咽部带及其相关带起源的细节。初观之，细胞咽部带似乎可能源自基底部，但显而易见，细胞咽部带仅起源于丝状网状组织。与四突相关带呈现出与体毛纤毛后微管相似的对应关系，它们从四突向后弯曲。然而，四突相关带虽与细胞咽部带的末端非常接近，甚至相触，却并未成为这些后者的组成部分。圆盘状囊泡与细胞咽部带的前侧（观察者左侧）结合，而较小的一组带则位于其后侧，紧贴细胞咽部膜。肺泡的管状指间穿过丝状网状节点的细胞咽部带，这些节点是细胞咽部带的起源处。最后，在四突的背侧边缘可见一排旁体囊，此处形成被覆囊泡。1973年5月23日由R. Wolf使用日立HU11A在75kV下拍摄的透射电子显微镜（TEM）图像。负像，放大16,250倍。刻度尺=0.5微米。