A grazing section through the dorsal surface of Euplotes showing cross sections of cilia in four of the sparsely ciliated kineties . A layer of mitochondria underlies the pellicle. A replication band ...

High resolution image of the collecting canal of the contractile vacuole complex. Normally the collecting canal is expanded when the CV is in systole. In this micrograph the collecting canal is empty ...

The contractile vacuole of V. convallaria empties into a convoluted chamber. This chamber is covered by the alveoli and plasma membrane of the pellicle and is open to the cell’s surface via the peri...

An overview of the peristome of Opercularia coarctata. The corrugated wall, the equivalent to the ribbed wall of Paramecium, contains tubular projections of alveoli and cross sections of two ribbons o...

Localization on the cell surface of Alexa Fluor-488-α factor (left, green in merge) and Sla1-RFP (center; red in merge). Within each white box, α-factor spots first appear and are subsequently joine...

Radial arm of the contractile vacuole complex displaying two rows of openings from the smooth spongiome into the collecting canal. Two microtubules separate the two rows of openings. The smooth spongi...

Cross section through a radial arm of the contractile vacuole complex. The collecting canal occupies the center of the arm whose membrane is supported by the radial microtubular ribbon which has now d...

The spongiome of membranes that surround the CV are probably not preserved in their native state when collidine buffered fixative is used. However, suggestions of decorated tubules as well as smooth t...

This section is cut at a level where the macronucleus is folded so it appears to be in 2 parts and where the micronucleus is visible. Contractile vacuole, perioral kinetids, and the peristome is evide...

This image shows a group of secretory vesicles loaded with very low density lipoproteins (VLDLs) located near the sinusoidal cell membrane (CM) of a hepatocyte. The fate of these VLDLs is to be secret...