Graduate, Oberschule, Bad Frankenhausen, German Democratic Republic, 1957. Doctor of Philosophy, University Cologne, Federal Republic Germany, 1967. Habilitation, Ruprecht-Karls University, Heidelberg, Germany, 1993.
Scientist, Max Planck Institute, Wilhelmshaven, Federal Republic Germany, 1967-1977; scientist, Max Planck Institute, Ladenburg, Federal Republic Germany, since 1977; privat dozent, Ruprecht-Karls U., Heidelberg, Germany, since 1993. Visiting scientist Laboratory of George Palade, Rockefeller U., New York City, United States, 1970.
Member International Society Phycology, German Botanical Society, German Society Cell Biology, German Society Electron Microscopy.
Married Geert Henning Seidel, December 20, 1983.