Spemann , Hans
(1869–1941) German zoologist, embryologist, and histologist
Spemann, who was born at Stuttgart in Germany, worked for a time in his father's bookshop there before graduating in zoology, botany, and physics at the universities of Heidelberg, Munich, and Würzburg. He was first an assistant, then a lecturer, at the Zoological Institute of Würzburg (1894–1908) before becoming professor at Rostock (1909–14). He was then successively associate director of the Kaiser Wilhelm Institute of Biology, Berlin (1914–19), and professor of zoology at Freiburg (1919–35).
Spemann's concept of embryonic induction, based on a lifetime's study of the development of amphibians such as newts, showed that certain parts of the embryo – the organizing centers – direct the development of groups of cells into particular organs and tissues. He further demonstrated an absence of predestined organs or tissues in the earliest stages of embryonic development; tissue excised from one part of the embryo and grafted onto another part will assume the character of the latter, losing its original nature. Spemann's highly original work, for which he received the Nobel Prize in 1935, paved the way for subsequent recognition of similar organizing centers in other animals groups. It is elaborated in Experimentelle Beiträge zu einer Theorie der Entwicklung (1936; Embryonic Development and Induction).

Scientists. . 2011.

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  • Spemann, Hans — ▪ German embryologist born June 27, 1869, Stuttgart, Württemberg [now in Germany] died Sept. 12, 1941, Freiburg im Breisgau, Ger.       German embryologist who was awarded the Nobel Prize for Physiology or Medicine in 1935 for his discovery of… …   Universalium

  • Spemann,Hans — Spe·mann (shpāʹmän ), Hans. 1869 1941. German zoologist and physiologist. He won a 1935 Nobel Prize for his discovery of the organizer effect in embryonic development. * * * …   Universalium

  • Spemann, Hans — ► (1869 1941) Zoólogo alemán. Fue premio Nobel de Medicina y Fisiología en 1935, por sus investigaciones sobre el concepto epigenético de la diferenciación celular …   Enciclopedia Universal

  • Spemann — Spemann, Hans …   Enciclopedia Universal

  • Hans Spemann — (* 27. Juni 1869 in Stuttgart; † 9. September 1941 in Freiburg im Breisgau) war ein deutscher Biologe. Inhaltsverzeichnis 1 Biographie 2 Selbstzeugnis 3 Schriften …   Deutsch Wikipedia

  • Hans Spemann — (Stuttgart, 27 de junio de 1869 Friburgo de Brisgovia, 12 de septiembre de 1941). Embriólogo alemán. Fue galardonado en 1935 con el Premio Nobel de Medicina por el descubrimiento del efecto conocido en la actualidad como inducción embriológica.… …   Wikipedia Español

  • Hans Adolf Eduard Driesch — Born 8 October 1867 Bad Kreuznach Died …   Wikipedia

  • Hans Spemann — (27 juin 1869 à Stuttgart, Allemagne 9 septembre 1941 à Fribourg en Brisgau, Allemagne) est un embryologiste allemand. Il a reçu le prix Nobel de physiologie ou médecine de 1935 « pour sa découverte de l effet… …   Wikipédia en Français

  • Spemann — Spemann,   1) Hans, Zoologe, * Stuttgart 27. 6. 1869, ✝ Freiburg im Breisgau 12. 9. 1941, Sohn von 3), Vater von 2); 1914 19 Direktor am Kaiser Wilhelm Institut für Biologie in Berlin, 1919 37 Professor in Freiburg im Breisgau. Spemann gewann… …   Universal-Lexikon

  • Spemann — ist der Familienname folgender Personen: Hans Spemann (1869–1941), deutscher Biologe Wilhelm Spemann (1844–1910), deutscher Verleger Diese Seite ist eine Begriffsklärung zur Unterscheidung mehrerer mit demselben Wort bezeic …   Deutsch Wikipedia

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