Uni.-Prof. em. Helmut Freitag - Research Information System | University of Kassel - CONVERIS Research Information System

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Prof. em. Dr. Helmut Freitag

Projects as Principal Investigator

01/2010 - 12/2012
08/2008 - 12/2010
10/2000 - 12/2009	Molekulare Systematik der Chenopodiaceae und Evolution des C4-Photosynthesesyndroms
1994 - 1995	Transektuntersuchungen am Aralsee
1993 - 1997	Veränderungen der Grünlandvegetation in ausgewählten Berg- und Talregionen in Nord- und Mittelhessen seit 1950
1991 - 1996	Die Quellen des Landkreises Kassel, ihre Pflanzenwelt und ihre Schutzwürdigkeit
1990 - 2005	Revision der altweltlichen Arten der Gattung Ephedra
12/1983 - 12/2005	Taxonomische Bearbeitung altweltlicher Chenopodiaceen (Salsoloideae, Suaedoideae)

Publications

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2002	Freitag, H., 2002. Proof of C-4 photosynthesis without Kranz anatomy in Bienertia cycloptera (Chenopodiaceae). The Plant Journal 31, 649–662. https://doi.org/10.1046/j.1365-313X.2002.01385.x
2001	Freitag, H., Golub, V.B., Lomonosova, M., 2001. Halophytic plant communities in the Northern Caspian lowlands: 1, annual halophytic communities. Phytocoenologia 31, 63–108.
2001	Voznesenskaya, E.V., Franceschi, V.R., Kiirats, O., Freitag, H., Edwards, G.E., 2001. Kranz anatomy is not essential for terrestrial C4 plant photosynthesis. Nature 414, 543–546. https://doi.org/10.1038/35107073
2001	Caveney, S., Charlet, D.A., Freitag, H., Maier-Stolte, M., Starratt, A.N., 2001. New observations on the secondary chemistry of world Ephedra (Ephedraceae). American Journal of Botany 88, 1199–1208. https://doi.org/10.2307/3558330
2001	Freitag, H., 2001. Salsola, in: Ali, S.I. and Q. (Hrsg.), Flora of Pakistan. Karachi University Press, Karachi, S. 127–178.
2001	Freitag, H., 2001. Suaeda, in: Ali, S.J. and Q. (Hrsg.), Flora of Pakistan. Karachi University Press, Karachi, S. 104–126.
2000	Freitag, H., Duman, H., 2000. An unexpected new taxon of Salsola from Turkey. Edinburgh Journal of Botany 57, 339–348.
2000	Freitag, H., Stichler, W., 2000. A remarkable new leaf type with unusual photosynthetic tissue in a central Asiatic genus of Chenopodiaceae. Plant Biology 2, 154–160. https://doi.org/10.1055/s-2000-9462
2000	Freitag, H., 2000. Chenopodiaceae, in: Güner, A. et al. (Hrsg.), Flora of Turkey, Vol. 11. Edinburgh University Press, Edinburgh, S. 57–65.
1999	Vural, M., Adiguzel, N., Freitag, H., 1999. A little heaven for chenopods. Karaca Arboretum Magazine 5, 49–58.