Johannes Gerloff (botanist)
Johannes Hermann Gerloff (born February 26, 1915 ; † December 6, 2000 ) was a German botanist who mainly dealt with single-celled plants (" algae "). He is considered a pioneer in the use of transmission electron microscopy (TEM) for research into diatoms . Gerloff worked as curator of the algae herbarium at the Botanical Museum Berlin-Dahlem of the Free University of Berlin and was provisional director from 1976 to 1978. His botanical author's abbreviation is " Gerloff ".
Life
Johannes Gerloff completed his studies in 1940 with a doctoral thesis on the range of variations in the morphology of Chlamydomonas cultures. In 1944 he was the first to publish TEM images of diatoms and thus became a pioneer of this technology in his field of work.
In 1956 he became a curator at the Botanical Museum Berlin-Dahlem and looked after the collection of algae preparations. Since 1965 he worked as a lecturer at the Free University. In 1972 he became a professor at the FU, to which the museum is affiliated. In 1976 he also took over the provisional management of the museum and the adjoining botanical garden. A year later he retired .
research
During his work, he was primarily concerned with the abundance of shapes in diatoms and in 1974 and 1977 published several parts of his work Diatom Shells in Electron Microscopy. Another focus of his work was the continuation of Willy Krieger's work on the ornamental algae (Desmidales) and above all the genus Cosmarium . Marine and limnic macroalgae were also an important focus and were first introduced by him and his colleague Ursula Geißler in 1984 the red lists of the endangered species of the GDR and Berlin incorporated.
In 1959, Gerloff and Fritz Mattick founded the magazine Nova Hedwigia , which focused on research on cryptogams such as mosses , lichens , fungi and algae. He was also one of the main actors and editors in the re-introduction of the editions of the freshwater flora of Central Europe founded by Adolf Pascher .
Together with various colleagues, Gerloff was the first to describe several species of the diatom genus Navicula . These were the species Naviluca diabolica 1963, Navicula tubulifera 1964 and Navicula mujibensis and Navicula palestinae 1985. The species Chlamydomonas gerloffii , Chloromonas gerloffii , Cladophoropsis gerloffii , Codium gerloffiosii , Navicula gerloffii and Thaloffassii were named after him .
literature
- Johannes Gerloff, Jürgen Damboldt, Werner Odenbach, Volkmar Denckmann , Hildegard Strübing , Karl Lenz, Reinhard Bickerich, Paul Hiepko: Prof. Dr. Theo Eckardt (1910-1977) . In: Willdenowia . Volume 8, Issue 2, 1978, pp. 219-233 (JSTOR)
- Wolf-Henning Kusber, Regine Jahn: Johannes Gerloff (1915-2000): A pioneer in using the Transmission Electron Microscope in diatom research, co-founder of Nova Hedwigia and Algae Curator at the BGBM Berlin-Dahlem (PDF; 237 kB). Proceedings of the 1st Central European Diatom Meeting 2007
Individual evidence
- ↑ Gerloff has been a lecturer since 1965 in the annual reports on the Botanical Museum and the Botanical Garden; see e.g. E.g .: http://www.bgbm.org/sites/default/files/documents/3995318.pdf (p. 254), accessed on August 19, 2018
| personal data | |
|---|---|
| SURNAME | Gerloff, Johannes |
| ALTERNATIVE NAMES | Gerloff, Johannes Hermann (full name) |
| BRIEF DESCRIPTION | German botanist |
| DATE OF BIRTH | February 26, 1915 |
| DATE OF DEATH | December 6, 2000 |