High resolution view during division showing the micronucleus contains internal microtubules as well as a layer of b-tubulin, not in microtubular form, on or just inside the nuclear envelope. The sect...

When the antigen was visualized with immunogold using DS-1 on thin-frozen sections the antigen could be seen to be present on the periphery of the decorated tubules. The collecting canal and smooth sp...

Cross section the 9 + 2 axoneme of the cilium of Tetrahymena. The plasma membrane covers the axoneme and is continuous with the plasma membrane covering the cell body. Each doublet tilts inward to the...

One parasomal sac lies anterior to each basal body of the somatic ciliature. A parasomal sac is an indentation of the plasma membrane that penetrates into the cytosol past the alveolus. Most sacs end ...

A cross section of the cell (ventral side up) through the buccal cavity showing basal bodies of the 3 membranelles (1, 2 and 3) lying along the indented dorsal wall. A short segment of the oral ribs s...

A thin cryosection of Vorticella exposed to a rabbit polyclonal antibody to alpha-centrin and then to gold conjugated to anti-rabbit IgG. The gold indicates that the myoneme contains alpha-centrin. Th...

The body of the trichocyst is composed of a core and a cortex which have slightly different electron diffracting properties, thus the cortex is darker since it scatters more electrons. An electron tra...

High resolution view of the bundles of microtubules that arise from along the elaborately woven blanket of the filamentous reticulum that covers the ribbed wall of the right side of the buccal cavity....

High resolution of cell in mitosis. The nuclear envelope of the micronucleus becomes heavily and uniformly labeled with anti-b-tubulin which is not in the form of microtubules. Some tubulin is also pr...