Jakob Schleiden, Matthias Jakob (Schleiden Matthias Jakob)

(1804-1881)
Born April 5, 1804 in Hamburg. He studied law in Heidelberg, botany and medicine at the University of GцІttingen, Berlin and Jena. Professor of Botany, University of Jena (1839-1862), from 1863 - Professor of Anthropology University of Dorpat (Tartu). The main direction of scientific research - cell biology and physiology of plants. In 1837 Jakob Schleiden proposed a new theory of the formation of plant cells, based on the concept of the decisive role in this process of cell nucleus. Scientists believe that the new cell as it is blown out of the nucleus and then covered with cell wall. Research Jakob Schleiden have contributed to the creation of T. Schwann cell theory. Jakob Schleiden known work on the development and differentiation of cellular structures of higher plants. In 1842 he first discovered the nucleoli in the nucleus. Among the most famous works of the scientist - Principles of Botany (Grundzge der Botanik, 1842-1843). Jakob Schleiden died in Frankfurt June 23, 1881.