Quick-freeze deep-etch image of a cytosolic region where trichocysts are developing. Vesicles, even small ones, contain contents that are compacting into paracrystalline form. These vesicles seem to h...

In the case of a developing organelle, once the vesicles have grown to 1-2µm in diameter an electron-opaque crystal begins to grow at the center of the developing trichocyst. The paracrystalline mate...

In this micrograph of a developing organelle, the trichocyst membrane is intact but does not bear the glycocalyx seen on the luminal side of the lysosomal membrane that lies nearby. The flocculant mat...

Developing trichocyst containing a paracrystalline core surrounded by amorphous material and an autophagosome containing mitochodrion. TEM taken on 1/25/74 by R. Allen with Hitachi HU11A operating at ...

Developing trichocyst containing a paracrystalline core surrounded by amorphous material and an autophagosome containing mitochodrion. TEM taken on 1/25/74 by R. Allen with Hitachi HU11A operating at ...

Following discharge, remnant trichocyst membrane does not appear to directly enter the trans Golgi network for reuse in new trichocyst formation. Rather the HRP will be transferred to lysosomes (not s...

Movie shows spindle assembly around DNA-beads in a Xenopus laevis egg extract. DNA beads are autofluorescent, and spindle is formed from exogenous X-rhodamine-labeled tubulin. By the end of the movie...

The events of meiosis I in a living insect spermatocyte beginning at metaphase with bivalents at the spindle equator, followed by anaphase onset, chromosome segregation and the start of cytokinesis. T...

The events of meiosis I and II in a living insect spermatocyte beginning with the breakdown of the nuclear envelope at diakinesis through to the completion of cytokinesis. Testes from the Crane fly N...

The events of meiosis I in a living insect spermatocyte beginning at metaphase with meiotic bivalents at the spindle equator followed by anaphase , segregation of bivalents to the spindle poles and t...