Released from the cell the trichocyst lengthens and its internal meshwork opens up into an elongated needle. TEM taken on 6/7/88 by C. Schroeder with Zeiss 10A operating at 80kV. Neg. 24,880X. Bar = 0...

Quick-freeze deep-etch image of an unfixed and fractured mitochondrion. The tubular cristae average 50nm in diameter. Each cristae bears a helically arranged double row of particles with the particles...

The P-face of the ciliary membrane at the base of the cilium has 9 triple rows of IMPs in register with the 9 doublets of the internal axoneme. It is thought that these IMPs may be sites of calcium in...

Quick-freeze deep-etch image of an unfixed and fractured mitochondrion. The tubular cristae average 50nm in diameter. Each cristae bears a helically arranged double row of particles with the particles...

Details of the binding of the carrier vesicle to a microtubule. Four bridges, thought to be cytoplasmic dynein arms, span the 40nm space between these two structures. The membrane of the vesicle has b...

Higher magnification of a QF-DE image of an acidosome with a large inward indentation of its membrane. The fractured P-face of the indentation shows many large IMPs. The acidosome lumen is honeycombed...

Quick-freeze deep-etch of granulo-fibrillar material at the crests of the ridges. This material is composed of thinner and shorter filaments that, like the striated bands, appear to bind to the membra...

Acidosomes originate from the biosynthetic pathway that includes the ER, the Golgi stack and the trans-Golgi network (TGN). Flattened vesicles from the TGN round up into spherical vesicles and bind to...

A high resolution image of portion of an isolated cilium exposing two rows of outer dynein arms arising from subfiber A of each doublet. The heavy chains of the dynein complex are linked to the microt...

High resolution image of an isolated and longitudinally fractured cilium exposing the middle of the cilium. The spokes extend from the doublets toward the two singlet microtubules. These spokes are sp...