Richard Allen (University of Hawaii) (2011) CIL:36221, Tetrahymena pyriformis, cell by organism, eukaryotic cell, Eukaryotic Protist, Ciliated Protist. CIL. Dataset

The bottom of the buccal cavity is surrounded by specialized cytoplasm and contains a lip that constricts the opening leading through the cytostome into the receiving vacuole or nascent vacuole. The oral ribs extend along one side of the cytostome and merge into the cytopharynx. Oral ribs have alveoli between the ribs but alveoli stop at the beginning of the cytopharynx. Lamellae, of 2 microtubules each, border the cytopharynx and direct discoidal vesicles to the site of fusion with the membrane of the growing vacuole. Two electron opaque vesicles, called lysosomes by most authors (eg. Nilsson, Biochem. and Phys. of Protozoa, 2nd ed., Vol 2:339-379, 1979, Acad. Press.), which are probably acidosomes, bind to the nascent vacuole membrane. TEM taken on 8/23/67 by R. Allen with Philips 200 operating at 60kV. Neg. 12,400X. Bar = 0.5µm. The negative was printed to paper and the image was scanned to Photoshop. This digitized image is available for qualitative analysis. There is a high resolution version of this image in the library (CIL:39718) which is available for quantitative analysis. Additional information available at (http://www5.pbrc.hawaii.edu/allen/).

颊腔底部被特化的细胞质所环绕，并包含一个唇状结构，该结构紧缩了通过胞口进入接收室或新生室的开口。口腔肋沿胞口一侧延伸并汇入细胞咽。口腔肋之间有气囊，但气囊在细胞咽的起始处终止。由每侧两个微管组成的层板环绕细胞咽，并将盘状囊泡导向与正在生长的室膜融合的位置。两种电子不透明囊泡，大多数作者称之为溶酶体（例如，Nilsson 在《原生动物生化与物理》第二版第二卷第339-379页，1979年，Acad. Press.），可能是酸性小体，与新生室膜结合。1976年8月23日，R. Allen 使用Philips 200型，在60kV的电压下拍摄了透射电子显微镜（TEM）图像。负片放大12,400倍。标尺长度为0.5微米。该负片被印在纸上，图像被扫描到Photoshop中。此数字化图像可用于定性分析。图书馆中还有该图像的高分辨率版本（CIL:39718），可用于定量分析。更多信息请访问（http://www5.pbrc.hawaii.edu/allen/）。