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. 2001.

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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 * * * …   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 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

  • Реакция Фёльгена (Feulgen Reaction) — метод определения наличия ДНК в ядре клетки. Срез ткани во время исследования сначала гидролизуется разбавленной соляной кислотой, а затем обрабатывается реактивом Шиффа. Пурпурная окраска свидетельствует о наличии ДНК. Источник: Медицинский… …   Медицинские термины

  • 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

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