réaction de Feulgen

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• 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

• 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 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 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 * * * …   Universalium

• 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 — 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 — Robert Feulgen Robert Feulgen (Joachim Wilhelm Robert Feulgen) fut un médecin, chimiste et professeur d université allemand, né le 2 septembre 1884 à Essen Werden et décédé le 24 octobre 1955 à Gießen. Il est connu pour avoir… …   Wikipédia en Français

• reaction — 1. The response of a muscle or other living tissue or organism to a stimulus. 2. The color change effected in litmus and certain other organic pigments by contact with substances such as acids or alkalies; also the property that such substances… …   Medical 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