- Feulgen reaction
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Feulgen reaction [foil′gən]n.Cytology a reaction in which an aldehyde combines with a modified Schiff's reagent to produce a purplish compound: used especially to test for the presence of DNA
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Universalium. 2010.
Feulgen reaction
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Feulgen reaction — n the development of a brilliant purple color by DNA in a microscopic preparation stained with a modified Schiff s reagent * * * a method of demonstrating the presence of DNA in cell nuclei. The tissue section under investigation is first… … Medical dictionary
Feulgen reaction — [foil′gən] n. Cytology a reaction in which an aldehyde combines with a modified Schiff s reagent to produce a purplish compound: used especially to test for the presence of DNA … English World dictionary
Feulgen reaction — noun Etymology: Robert Feulgen died 1955 German physiologist Date: 1928 the development of a brilliant purple color by DNA in a microscopic preparation stained with a modified Schiff s reagent … New Collegiate Dictionary
Feulgen reaction — a method of demonstrating the presence of DNA in cell nuclei. The tissue section under investigation is first hydrolysed with dilute hydrochloric acid and then treated with Schiff s reagent. A purple coloration develops in the presence of DNA… … The new mediacal dictionary
feulgen reaction — ˈfȯilgən noun Usage: usually capitalized F Etymology: after Robert Feulgen b1884 German physiologist : the development of a purplish color in a microscopic preparation hydrolyzed and stained with a modified Schiff reagent that is considered to… … Useful english dictionary
Feulgen reaction — Specific staining procedure for DNA: mild acid hydrolysis makes the aldehyde group of deoxyribose available to react with Schiff s reagent to give a purple colour … Dictionary of molecular biology
Feulgen stain — is a staining technique discovered by Robert Feulgen and used in histology to identify chromosomal material or DNA in cell specimens. It depends on acid hydrolysis of DNA, therefore fixating agents using strong acids should be avoided.The… … Wikipedia
Feulgen — Robert, German nucleic acid biochemist and cytochemist, 1884–1955. First to detect DNA in cells by a specific cytochemical test. See F. cytometry. * * * Feul·gen fȯil gən adj of, relating to, utilizing, or staining by the Feulgen reaction… … Medical dictionary
Feulgen — adjective Date: 1928 of, relating to, utilizing, or staining by the Feulgen reaction < positive Feulgen mitochondria > … New Collegiate Dictionary
feulgen — ˈfȯilgən adjective Usage: usually capitalized : of, relating to, utilizing, or staining by the Feulgen reaction positive Feulgen mitochondria … Useful english dictionary
