This group represents a serial series of sections. At the level of this section, the bottom of cytopharyngeal tube with one cilium remaining. End of macronucleus, three membranelles of the pek, and ma...

A DV-III contains a thick continuous glycocalyx (polysaccharide coat) on the luminal side of its membrane as well as paracrystalline material, both provided by the fused lysosomes. The latex beads ind...

High resolution image of Colpoda. A soil ciliate and this micrograph is characterized by numerous mucocysts and food vacuoles containing bacteria in various stages of digestion. This electron microgra...

11 micrographs are views of a serially-sectioned contracted Vorticella convallaria cell that show the main features of this cell. This figure shows 3 food vacuoles (of a total of about 15 in the cell...

High resolution image of Halteria fixed in cacodylate-buffered fixative and stained. The round, dark bodies, possibly pigment granules, which were transparent in other preparations are electron-opaque...

This image of Halteria was fixed in cacodylate-buffered fixative and stained. The round, dark bodies, possibly pigment granules, were transparent in other preparations are electron-opaque following th...

A nascent digestive vacuole with several acidosome-like vesicles docked at its cytosolic surface. The presence of the microtubules from the oral ribs signifies that this vacuole is still attached to t...

Grazing section through an accumulation of uncoated cupulas in the process of attachment to and fusion with a food vacuole membrane. The small round pores apparently represent early stages of fusion o...

In more extreme cases microfilamentous material builds up into a thick layer surrounding the DV-I membrane as well as the fusion sites between the acidosomes and the DV-I. A similar thick meshwork was...

A high resolution image of a layer of mucocysts docked under the pellicle. The pellicle has a plasma membrane and an alveolar sac system. Both basal bodies of a dikinetid are ciliated, and the food va...