Licensing

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Description

Transmission electron micrographs showing annulate lamellae from a frog oocyte. Annulate lamellae consist of stacked sheets of membrane containing closely packed structures resembling nuclear pores and are most frequently encountered in oocytes. Micrograph courtesy of Richard Kessel, Figures 164 (upper) and 165 (lower) from Chapter 4 (Nucleus) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. A PDF copy of the accompanying chapter is available on the ASCB's BioEDUCATE website.

Biological Sources

NCBI Organism Classification
Rana pipiens
(northern leopard frog)
Cell Type
oocyte
Cellular Component
annulate lamellae
nuclear pore

Biological Context

Biological Process
nucleus organization
nuclear envelope organization

Attribution

Names
Richard Kessel
Don W Fawcett
Publisheds
ISBN 0721635849
from: Don W. Fawcett M.D ‘The Cell' 2nd edition, W.B. Saunders Chapter 4 (Nucleus)
Link
ASCB BioEDUCATE Program

Grouping

This image is part of a group.

Imaging

Image Type
film
Imaging Mode
transmission electron microscopy (TEM)
detection of electrons
Parameters Imaged
electron density
Source of Contrast
differences in adsorption or binding of stain
Visualization Methods
uranyl salt
osmium tetroxide
lead salt
Processing History
Image extracted from .pdf file of 'The Cell'
Data Qualifiers
processed data

Dimensions

Spatial Axis Image Size Pixel Size
X 894px ——
Y 1280px ——
*CIL – Cell Image Library accession number. Please use this to reference an image.