Johann Jacob Paul Moldenhawer
Johann Jacob Paul Moldenhawer ( born February 11, 1766 Hamburg, † August 21, 1827 in Kiel ) was a German botanist. Its official botanical author abbreviation is " Moldenh. ".
Life and work
Moldenhawer was a son of the theologian Johann Heinrich Daniel Moldenhawer. He first studied theology until 1783 at the Christian -Albrechts -University of Kiel and the University of Copenhagen. There he began to deal with the natural sciences, especially botany. Due to the publication of his work " Tentamen in historiam plantarum Theophrasti " In 1791 he was appointed in 1792 as an associate professor of Botany and Arboriculture at the University of Kiel, where he held the same lectures in classical Greek literature.
Moldenhawers performance in botany is, inter alia, to introduce a Mazerationsmethode with which he was able to isolate plant cells from the tissue structure and thus also realized that the individual cells of the plants are surrounded by a cell wall. Next he concentrated on the Leitgefäßen in which he proved that they are grouped into bundles. He coined the term of the vascular bundle. He discovered this structure initially on corn, later also to the dicots. With its subtle histological studies Moldenhawer also discovered the guard cells in addition to the stomata on the leaves.
Moldenhawer was knighted in 1813 a Knight of the Dannebrog, 1824 appointed royal councilor.
His tomb is located on the Park Cemetery Eichhof near Kiel.
Swell
- Ilse Jahn: History of Botany (2000)
- Erich Carsten Carstens: Moldenhawer, Johann Jacob Paul. In: General German Biography (ADB ). Volume 22, Duncker & Humblot, Leipzig 1885, pp. 93 f
- Olaf Klose: Schleswig -Holstein biographical dictionary. Wax Holtz, 1982 ISBN 352902645X
Writings
- Tentamen in historiam plantarum Theophrasti. Hamburgi: Sumtibus Benjamin Gottl. Hoffmann, 1791.
- Contributions in writing to the anatomy of plants. XII, 335 pp., VI Bl: Ill.; 4 Keel: Printed at the Royal Schulbuchdruckerey by CL Wäser, 1812.