Electron Microscopic Observations of Dividing Somatic Nuclei in Saprolegnia

Electron Microscopic Observations on T

Electron microscopic study of the H.R. strain of herpes simplex virus in cells of the chicken chorioallantoic membrane (1) suggested that the virus differentiates within the nucleus, where particles possessing a central core and a single limiting membrane are randomly dispersed. In this earlier work the finding that ruptured nuclei were associated with large numbers of intracytoplasmic particle...

Electron microscopic observations in alcoholic heart disease.

Electron Microscopic Observations of Rabbit Antibodies

Electron micrographs were obtained showing the individual, shadow-cast macromolecules from solutions of purified anti-p-azobenzoate rabbit antibody and of normal gamma-globulin. The two materials look alike and consist mainly of asymmetrical rod-like particles about 30 to 40 A in diameter. Lengths are not constant but the weight average is about 250 A for the antibodies and about 200 A for the ...

Electron Microscopic Study of the Nuclei in a Sorangiurn species

Electron microscopy of ultrathin sections enabled the fine structural peculiarities of a myxobacterium (Sorangium sp.) to be studied. The myxobacteria did not show the dense membrane characteristic of eubacterial cells. A very thin membrane in the myxobacteria cells was not distinguishable from the cytoplasm. In ultrathin sections of the myxobacteria there was observed a broad dark coloured cyt...

Electron microscopic observations on avian esophageal epithelium.

The stratified squamous epithelium of the chicken and pigeon esophageal mucosa was studied mainly with the electron microscope. 1. The basal and spinous cells contained well-developed Golgi complexes, many mitochondria and multivesicular bodies. In the chicken basal cell a centriole and a single cilium were found. Both cells were rich in free ribosomes; the cisternae of the granular endoplasmic...