Clara Zollikofer
Clara Zollikofer (born March 12, 1881 in St. Gallen ; † March 1, 1975 in Zurich ) was a Swiss botanist, private lecturer and adjunct professor of botany at the University of Zurich .
Live and act
Clara Zollikofer , daughter of a respected St. Gallen family, was stimulated by attending the horticultural school for women in Godesberg to deal with plant physiological problems and then studied at various German universities. With an investigation into the statolith theory , she did her doctorate in 1918 under Gottlieb Haberlandt at the Friedrich Wilhelms-Universität zu Berlin . She expanded her knowledge of the growth, movement and development physiology of plants through a stay in Frits Went's laboratory in Utrecht . After completing her studies in Holland, the young botanist chose the Institute for General Botany at the University of Zurich as her definitive field of activity . Here she received the Venia Legendi in 1921 as a private lecturer for botany with special consideration of physiology and morphology . In recognition of her work, she was appointed adjunct professor in 1933. In 1949 she retired for reasons of age.
Works (selection)
- About the geotropic behavior of starchy seedlings and the degradation of starch in gramineae - coleoptiles , contributions to general botany 36, 1918
- On the effect of gravity on plasma viscosity , Contributions to General Botany 37, 1918
- On the influence of gravity stimulus on the growth of coleoptiles from Avena Sativa , 1922
- On geotropic curvatures of Paniceen coleophiles with inhibited conduction , Planta 2, 1926
- On dorsiventral curvature in seedlings of panicum and sorghum and the influence of the coleoptile on mesocotyl growth , Recueil des travaux botaniques néerlandais 25a, 1928
- Investigations on floral movement by Tussilago Farfara , Zeitschrift für Botanik 21, 1929
- Investigations on the fertility problem of the heterostyle , Planta 16, 1932
- On the effect of the follicle hormone on plants , reports of the German Botanical Society 54, 1936
- On the effect of oestron and thyroxine on dormant buds , reports of the German Botanical Society 57, 1939
- Diethylstilbestrol as a “growth substance” , negotiations of the Swiss Natural Research Society , 1941
Individual evidence
- ^ Hans Wanner : Nekrolog Clara Zollikofer . In: Annual report of the University of Zurich . tape 1974/75 . Orell Füssli, Zurich 1975, p. 100–102 ( archiv.uzh.ch [PDF]).
- ^ Dossier: Zollikofer, Klara, 1881–1975, botany, especially physiology and morphology. UZH archive . Signature: AB.1.1172. link
| personal data | |
|---|---|
| SURNAME | Zollikofer, Clara |
| BRIEF DESCRIPTION | Swiss botanist |
| DATE OF BIRTH | March 12, 1881 |
| PLACE OF BIRTH | St. Gallen |
| DATE OF DEATH | March 1, 1975 |
| Place of death | Zurich |