title: Feulgen positive nucleoli in Epon semithin sections: fact or artifact?
abstract: Epon semithin sections from glutaraldehyde fixed tissues show stained nucleoli after treatment with the Schiff's reagent. The possibility that aldehyde groups already present could account for this positive staining reaction is briefly discussed.
mesh_terms: D000076:Acetabularia / Q000166:cytology; D000818:Animals; D002466:Cell Nucleolus; D003584:Cytological Techniques; D004330:Drosophila; D007202:Indicators and Reagents; D008297:Male; D051379:Mice; D012708:Sertoli Cells / Q000166:cytology; D013090:Spermatocytes / Q000166:cytology; D013093:Spermatogonia / Q000166:cytology; D013194:Staining and Labeling
chemical_list: D007202:Indicators and Reagents