spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

Right arrow Help viewing high resolution images
Right arrow Return to article
(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.



Fig. 1. Ultrastructure of the Allium Sativum cell nucleolus and the morphological characteristics of DNA in the nucleolus after DNA-specific staining. (A) Conventional electron microscopic sample preparation. The nucleolus is composed of the fibrillar center (FC, arrows), the dense fibrillar component (DFC), the granular component (GC) and the nucleolar vacuoles (V). The nucleolus consists of many small FCs (arrows). In the FCs, dense chromatin clumps are distributed. (B,D) The DNA fibers appear in the nucleolar region after NAMA-Ur DNA-specific staining, and (C) the lowest electronic density region contains DNA clumps (arrows). D is an enlarged view of the nucleolus region of B. Bars, 0.5 µm.





Right arrow Return to article