Schleiden, Mathias Jacob

born April 5, 1804, Hamburg, Ger.
died June 23, 1881, Frankfurt am Main

German botanist.

Trained as a lawyer, he soon left the profession to study natural science. He and Theodor Schwann developed the cell theory, which states that organisms are composed of cells or substances made by cells; they were thus the first to formulate what was then an informal belief as a principle of biology equal in importance to the atomic theory of chemistry. He also recognized the importance of the cell nucleus and sensed its connection with cell division. He was one of the first German biologists to accept Charles Darwin's theory of evolution.

Schleiden

By courtesy Bildarchiv Preussischer Kulturbesitz BPK, West Berlin

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▪ German botanist
born April 5, 1804, Hamburg
died June 23, 1881, Frankfurt am Main
 German botanist, cofounder (with Theodor Schwann) of the cell theory.

      Schleiden was educated at Heidelberg (1824–27) and practiced law in Hamburg but soon developed his hobby of botany into a full-time pursuit. Repelled by contemporary botanists' emphasis on classification, Schleiden preferred to study plant structure under the microscope. While professor of botany at the University of Jena, he wrote “Contributions to Phytogenesis” (1838), in which he stated that the different parts of the plant organism are composed of cells or derivatives of cells. Thus, Schleiden became the first to formulate what was then an informal belief as a principle of biology equal in importance to the atomic theory of chemistry. He also recognized the importance of the cell nucleus, discovered in 1831 by the Scottish botanist Robert Brown, and sensed its connection with cell division. Schleiden was one of the first German biologists to accept Darwin's theory of evolution. He became professor of botany at Dorpat, Russia, in 1863.

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Universalium. 2010.

Look at other dictionaries:

  • Schleiden, Mathias Jacob — (5 abr. 1804, Hamburgo, Alemania–23 jun. 1881, Francfort del Meno). Botánico alemán. Si bien se formó como abogado, pronto dejó la profesión para estudiar ciencias naturales. Junto con Theodor Schwann desarrolló la teoría celular, que sostiene… …   Enciclopedia Universal

  • Jacob — o Ya akov, en hebreo יַעֲקֹב sostenido por el talón o en árabe يعقوب Yaʿqūb, conocido despues como Israel hebreo יִשְׂרָאֵל Principe de Dios , árabe اسرائيل Isrāʾīl) es uno de los patriarcas de la Biblia. Su historia es contada en el libro de… …   Enciclopedia Universal

  • Jacob — /jay keuhb/ for 1, 3; Fr. /zhann kawb / for 2, n. 1. the second son of Isaac, the twin brother of Esau, and father of the 12 patriarchs. Gen. 25:24 34. 2. François /frddahonn swann /, born 1920, French geneticist: Nobel prize for medicine 1965. 3 …   Universalium

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  • Mathias — (as used in expressions) Mathias, Bob Robert Bruce Mathias Schleiden, Mathias Jacob …   Enciclopedia Universal

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  • Mathias Schleiden — Matthias Jacob Schleiden Matthias Jacob Schleiden (* 5. April 1804 in Hamburg; † 23. Juni 1881 in Frankfurt am Main) war ein deutscher Botaniker und Mitbegründer der Zelltheorie. Sein offizielles …   Deutsch Wikipedia

  • Matthias Jacob Schleiden — (* 5. April 1804 in Hamburg; † 23. Juni 1881 in Frankfurt am Main) war ein deutscher Botaniker und Mitbegründer der Zelltheorie. Sein offizielles botanisches Au …   Deutsch Wikipedia

  • Matthias Jakob Schleiden — Matthias Jacob Schleiden Matthias Jacob Schleiden (* 5. April 1804 in Hamburg; † 23. Juni 1881 in Frankfurt am Main) war ein deutscher Botaniker und Mitbegründer der Zelltheorie. Sein offizielles …   Deutsch Wikipedia

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