Lectures

All lectures will be held in English!

Dr. Aymeric Roccia: Phylogeny of the Genus Pinguicula

Summary
Despite a great enthusiam by taxonomists since the 1990s with many new species being described from Mexico, Cuba and the mediterranean area, the evolution of the Pinguicula genus was only investigated by molecular phylogeny means since 2005. Two markers drove those researchs, the nuclear ITS and the plastidial trnK, sometimes giving contradictory results. Those phylogenies were commented regarding the biogegraphy of the genus or morphological aspects such as the seed embryo anatomy. But they all push the taxonomists to reconsider the classical subdivisions of the genus made by Casper back to the 1960s, based on floral morphology and growing habits. In this conference, we will review the molecular phylogenetics studies and their main results, and try to understand how they are changing our view of the Pinguicula genus evolution.

About the speaker
Dr. Aymeric Roccia is a plant biologist, genetist and chemist, with speciality on scented, aromatic and medicinal plants. He received his Ph.D. in plant biology in 2013 from Jean Monnet University, Saint Etienne, France. He is author of a few peer-reviewed papers on rose perfume and recently described a new natural butterwort hybrid. He also contributed the Pinguicula chapter to Flora Gallica and is the lead author of Pinguicula of the Temperate North, one of the two volumes of the last revision of the genus Pinguicula. On January 2018, he coauthored with Andreas Fleischmann the Pinguicula chapter in Carnivorous plants physiology, ecology and evolution, dealing with butterwort systematics and especially phylogeny.

Dr. Simon Poppinga: Suckers and snappers – New insights into the ultrafast traps of Utricularia and Aldrovanda

Summary
In my talk, I will explain how the ultrafast suction traps of bladderworts (Utricularia spp.) and snap-traps of the waterwheel (Aldrovanda vesiculosa) work. Recent biomechanical and functional-morphological analyses together with prey capture experiments as well as mechanical modelling and computer simulations have led to a profound understanding of these sophisticated trapping devices. The audience can expect tons of insightful and spectacular high-speed footage of traps in action!

About the speaker
Dr. Simon Poppinga is a post-doctoral scholar and research group leader for plant movements, biomimetics, and elastic architecture in the Plant Biomechanics Group at the University of Freiburg, Germany. His research focuses on biomechanics and functional morphology of moving plant structures, especially of carnivorous plants traps. His other research interests include functional plant surfaces and the transfer of functional principles found in nature into technical applications (bionics/biomimetics).

Dr. Jan Schlauer: The Quinones of Arachnopus – Chemical Taxonomy of the ‚Indian‘ Sundews

Summary

Plumbagin and 7-methyljuglone are chemical constituents that allow delimitation of and distinction between sundew (Drosera) species or species groups because they are unevenly distributed in these taxa (Schlauer et. al. 2018). In this lecture this is exemplified for Drosera section Arachnopus (the „D. indica complex“), presenting new and intriguing insights into the diversity of this group. This is juxtaposed to microscopy images of the characteristic leaf and stem emergences that further distinguish the featured species.

About the speaker

PD Dr. Jan Schlauer (University of Tübingen, Germany) is a biochemist and plant taxonomist. His research focuses on secondary metabolism of heterotrophic plants and its relationship to diversification and phylogeny. Together with his studies in chorology and floristics it has implications for natural product chemistry, biodiversity evaluation/documentation, and conservation/sustainability.

References

Schlauer, J., Hartmeyer, S.R.H., Hartmeyer, I., Hennern, H., Hennern, A. (2018) Sundew Chemistry and Emergence Updates, Carniv. Pl. Newslett. 47: 10-17.

http://legacy.carnivorousplants.org/cpn/articles/CPNv47n1p10_17.pdf