High resolution view of quick-freeze deep-etch of the contractile vacuole E-fracture face. This face, like the collecting canal membrane, is porous indicating that many IMPs have been removed from thi...

High resolution quick-freeze deep-etch image of a fracture through the radial canal of the contractile vacuole. This technique presents a picture of a confusing array of non-etchable material surround...

Quick-freeze deep-etch of an ampulla. The P-fracture face has numerous IMPs. The microtubular ribbon now forms two bands next to this ampulla. The ribbons will split into additional bands as they pass...

Phagosome neutralization visualized using FITC-yeast. Amoebae of Dictyostelium discoideum were fed living budding yeast (S. cerevisiae strain TH2-1B) that had been labeled with fluorescein isothiocyan...

A movie of phagosome neutralization visualized using FITC-yeast. Amoebae of Dictyostelium discoideum were fed living budding yeast (S. cerevisiae strain TH2-1B) that had been labeled with fluorescein ...

As with acidosome fusion with the DV-I, lysosome fusion with the DV-II also seems to occur nearly all at once resulting in a phagolysosome (DV-III) with a highly irregular surface. However, unlike the...

A movie that shows phagosome acidification and neutralization visualized using FITC-yeast. Amoebae of Dictyostelium discoideum were fed living budding yeast (S. cerevisiae strain TH2-1B) that had been...

In Euplotes a replication band of the macronucleus has larger heterochromatin masses on one side of the band after DNA replication has occurred. The replication band moves in the direction of lighter...

In Euplotes a replication band of the macronucleus has larger heterochromatin masses on one side of the band after DNA replication has occurred. The replication band moves in the direction of lighter...

Immunogold label specific for Q2 antigen on discoidal vesicles. The same mAb used in CIL:36721 heavily labels discoidal vesicles and less heavily the cytopharyngeal membrane. A few gold particles are ...