Johann Jacob Paul Moldenhawer (11 February 1766 – 21 August 1827) was a German botanist who made a number of important discoveries in plant anatomy. He was born in Hamburg, the son of a minister, and started out studying theology and the classics. At some unknown point he became interested in plants, and in 1791 he published Tentamen in historiam plantarum Theophrasti, on Theophrastus, and the following year he is recorded as "Extraordinary Professor of Botany and Fruit Tree Culture" (außerordentlicher Professor für Botanik und Obstbau) at the University of Kiel. He studied plant anatomy from 1795 until 1812, when he published Beyträge zur Anatomie der Pflanzen on his results. Immediately subsequently he concentrated on fruit tree culture. He died in Kiel.
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| - يوهان ياكوب بول (ar)
- Johann Jacob Paul Moldenhawer (de)
- Johann Jacob Paul Moldenhawer (en)
- Johann Jacob Paul Moldenhawer (it)
- Мольденгавер, Пауль (ru)
- Johann Jacob Paul Moldenhawer (sv)
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| - يوهان ياكوب بول (بالألمانية: Paul Moldenhawer) (و. 1766 – 1827 م) هو عالم نبات، وأستاذ جامعي من ألمانيا . ولد في هامبورغ . توفي في كيل . (ar)
- Johann Jacob Paul Moldenhawer (* 11. Februar 1766 in Hamburg; † 21. August 1827 in Kiel) war ein deutscher Botaniker. Sein offizielles botanisches Autorenkürzel lautet „Moldenh.“ (de)
- Johann Jacob Paul Moldenhawer (Amburgo, 11 febbraio 1766 – Kiel, 21 agosto 1827) è stato un botanico tedesco che ha fatto una serie di importanti scoperte nell'. (it)
- Пауль Мольденгавер (нем. Johann Jacob Paul Moldenhawer; 11 февраля 1766, Гамбург Германия — 22 августа 1827, Киль Германия) — немецкий ботаник. (ru)
- Johann Jacob Paul Moldenhawer, född 11 februari 1766 i Hamburg, död 22 augusti 1827 i Kiel, var en tysk botanist, bror till Daniel Gotthilf Moldenhawer. Auktorsnamnet Moldenh. kan användas för Johann Jacob Paul Moldenhawer i samband med ett vetenskapligt namn inom botaniken; se Wikipediaartiklar som länkar till auktorsnamnet.Moldenhawer, som var extra ordinarie professor vid Kiels universitet, var en av dem som i början av 1800-talet nydanade växtanatomin. Hans stora arbete Beiträge zur Anatomie der Pflanzen (1812) innehåller intressanta iakttagelser och för vetenskapen avgörande upptäckter i växternas mikroskopiska byggnad. (sv)
- Johann Jacob Paul Moldenhawer (11 February 1766 – 21 August 1827) was a German botanist who made a number of important discoveries in plant anatomy. He was born in Hamburg, the son of a minister, and started out studying theology and the classics. At some unknown point he became interested in plants, and in 1791 he published Tentamen in historiam plantarum Theophrasti, on Theophrastus, and the following year he is recorded as "Extraordinary Professor of Botany and Fruit Tree Culture" (außerordentlicher Professor für Botanik und Obstbau) at the University of Kiel. He studied plant anatomy from 1795 until 1812, when he published Beyträge zur Anatomie der Pflanzen on his results. Immediately subsequently he concentrated on fruit tree culture. He died in Kiel. (en)
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| - يوهان ياكوب بول (بالألمانية: Paul Moldenhawer) (و. 1766 – 1827 م) هو عالم نبات، وأستاذ جامعي من ألمانيا . ولد في هامبورغ . توفي في كيل . (ar)
- Johann Jacob Paul Moldenhawer (* 11. Februar 1766 in Hamburg; † 21. August 1827 in Kiel) war ein deutscher Botaniker. Sein offizielles botanisches Autorenkürzel lautet „Moldenh.“ (de)
- Johann Jacob Paul Moldenhawer (11 February 1766 – 21 August 1827) was a German botanist who made a number of important discoveries in plant anatomy. He was born in Hamburg, the son of a minister, and started out studying theology and the classics. At some unknown point he became interested in plants, and in 1791 he published Tentamen in historiam plantarum Theophrasti, on Theophrastus, and the following year he is recorded as "Extraordinary Professor of Botany and Fruit Tree Culture" (außerordentlicher Professor für Botanik und Obstbau) at the University of Kiel. He studied plant anatomy from 1795 until 1812, when he published Beyträge zur Anatomie der Pflanzen on his results. Immediately subsequently he concentrated on fruit tree culture. He died in Kiel. Moldenhawer's contributions center on the microscopic examination of plant tissues, for which he devised techniques to separate the cells from the middle lamella layer that separates them. He identified vascular and parenchymatous tissues, described vascular bundles, observed the cells in the cambium, and interpreted tree rings. He found that stomata were composed pairs of cells, rather than a single cell with a hole. Although Moldenhawer is not credited with the cell theory, his work provided key documentation for the validity of the theory in plants. The genus Moldenhawera is named in his honor. The standard author abbreviation Moldenh. is used to indicate this person as the author when citing a botanical name. (en)
- Johann Jacob Paul Moldenhawer (Amburgo, 11 febbraio 1766 – Kiel, 21 agosto 1827) è stato un botanico tedesco che ha fatto una serie di importanti scoperte nell'. (it)
- Пауль Мольденгавер (нем. Johann Jacob Paul Moldenhawer; 11 февраля 1766, Гамбург Германия — 22 августа 1827, Киль Германия) — немецкий ботаник. (ru)
- Johann Jacob Paul Moldenhawer, född 11 februari 1766 i Hamburg, död 22 augusti 1827 i Kiel, var en tysk botanist, bror till Daniel Gotthilf Moldenhawer. Auktorsnamnet Moldenh. kan användas för Johann Jacob Paul Moldenhawer i samband med ett vetenskapligt namn inom botaniken; se Wikipediaartiklar som länkar till auktorsnamnet.Moldenhawer, som var extra ordinarie professor vid Kiels universitet, var en av dem som i början av 1800-talet nydanade växtanatomin. Hans stora arbete Beiträge zur Anatomie der Pflanzen (1812) innehåller intressanta iakttagelser och för vetenskapen avgörande upptäckter i växternas mikroskopiska byggnad. (sv)
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