We examined the structural organization of cytoskeletal components and membrane systems in neurons of well preserved biopsy material from Alzheimer’s disease (AD). Information was obtained from thin...

Part of a collage of images of a single nucleolus from yeast strain NOY1051 which has a fixed rDNA array size of 143 repeats. In total 71 of 120 35S ribosomal RNA genes visualized in the Miller chroma...

Transmission electron micrograph illustrating the unusually prominent fibrous nuclear lamina (arrows) seen in many invertebrates such as this leech ganglion cell. From Fawcett (1966) Am J. Anat. 119:...

Mouse 3T3 fibroblast shown in phase contrast (left) and immuno-stained for the nucleolar protein nucleostemin (right, green).

Transmission electron micrograph of a thin section of the nucleus of a HeLa cell expressing a mutant of the nuclear porin ALADIN. The nuclear envelope ultrastructure is not affected by the mutation. ...

High resolution image of the DNA replication band in macronucleus of Halteria. Like hypotrichs the macronucleus of this oligotrich has a DNA replication band where DNA is synthesized. The nucleolus is...

High resolution transmission electron micrograph of a portion of the macronucleus of Opercularia coarctata containing irregularly shaped heterochromatin bodies and elliptical nucleoli. Ribosome-like p...

High resolution image of the macronucleus of Coleps hirtus. Heterochromatin and nucleoli are seen as smaller and larger stained bodies, respectively, in the macronucleus. Many nuclear pores exist in t...

Mouse 3T3 fibroblast immunostained for the nucleolar protein nucleostemin (left, green) and fibrillarin (right, red) marking nucleolar fibrillar centers.

Rat NRK fibroblasts in phase contrast and stained for the nucleolar proteins nucleostemin (green) and fibrillarin (red). Panels at right show merge. Rows show different stages of mitosis, from top, ea...