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...

An ameba, Balamuthia mandrillaris, within a culture of feeder cells is extended from its branched pseudopodia at the upper left corner of the picture while its rope-like body curves over and around a ...

The micronuclear separation spindle. Nuclear pores are not empty perforations but are closed by nonetchable material. The separation spindle must elongate as microtubules lengthen and/or slide against...

A view of the ER on which IMPs are organized into lines, arcs, and circles indicating organization of proteins within the ER membrane and possibly peripheral proteins attached to its cytosolic surface...

Tangential fractures through mature trichocysts. The planes in the paracrystalline stacks are exposed. The body is laced to the membrane but such associations must be severed when the trichocyst is di...

Upon electron bombardment, some elements, such as P, show an electron energy loss profile with a peak at a specific energy loss value. By collecting a series of images of a field at different energy l...

Quick-freeze deep-etch image of a crystal. The contents of the crystal have condensed into paracrystalline planes that break into angular chunks when fractured. A portion of the P-fracture face of the...

Views of a striated band linked to the epiplasm on the ridge slopes and the intermembrane space between the plasma membrane and alveolus space inside the alveolus. TEM taken on 6/6/91 by C. Schroeder ...

Acanthamoeba castellani is a free living amoebae found in soil and water and can be an opportunistic pathogen as well. They have been diagnosed as the causative agent associated with keratitis, an inf...

Balamuthia mandrillaris was isolated from a sample of soil from a plant in the home of a child who died of amebic encephalitis. These free living amoebae can be opportunistic pathogens, and in some ...