Vorträge / Lectures

Alle Vorträge (mit Ausnahme der Jubiläumsrede) werden auf Englisch sein. Weitere Vorträge werden veröffentlicht, sobald sie feststehen. Während der Pausen werden Erfrischungsgetränke und Snacks angeboten /

All lectures, except for the Anniversary speech, will be in English. More lectures will be added as soon as they are fixed. There will be some refreshments and snacks during the breaks.

Vorträge / Lectures

Prof. Dr. Victor Amoroso (Philippines)
Exploring Pitcher Plants in Southern Philippines

Summary: This paper presents the richness of Nepenthes in several mountains in Mindanao, their distribution and assessment of the conservation and ecological status. The presentation will also highlight the discovery of species new to science involving the participation of experts, members of cultural groups and forest guards.

Dr. Mitsuyasu Hasebe (Japan)
Molecular mechanisms that evolved botanical carnivory

Summary: The enigmatic evolution of carnivorous plants from their non-carnivorous ancestors remains one of the unresolved mysteries in evolutionary biology. Recent strides in genome comparisons and the analysis of molecular mechanisms governing carnivorous traits are progressively lifting the veil on this fascinating puzzle. This presentation aims to summarize our recent research efforts, exploring the following questions: 1) How do Sarracenia purpurea and Cephalotus follicularis form their unique pitchers? 2) How did carnivorous plants convergently acquire digestive enzymes? 3) How do Drosera and Dionaea sense and transmit mechanical signals? 4) How does Dionaea memorize mechanical stimuli within 30 seconds? and 5) How do stimuli to a few tentacles of Drosera result in the synchronized movement of all tentacles and the leaf blade?

Bio: Dr. Mitsuyasu Hasebe is a professor at the National Institute for Basic Biology (NIBB) in Okazaki, Japan. His research group is dedicated to investigating the molecular mechanisms and evolution of carnivorous traits, employing genetic modifications in Drosera rotundifolia, Dionaea muscipula, and Cephalotus follicularis.

Thilo Krüger (Australia / Germany)
From Karl von Hügel to citizen science on Facebook: The incredible natural history of the West Australian Drosera microphylla complex

Summary: The Drosera microphylla complex is a group of closely related carnivorous plants from southwest-Australia that produce a stunning diversity of different flower colours. This presentation will provide an overview of the natural and taxonomic history of these species that started with a collection by Austrian nobleman and naturalist Karl von Hügel who collected the first herbarium specimen of the complex during an expedition to Australia in 1834. This very important specimen now represents the holotype of Drosera microphylla and is preserved at the Herbarium of the Natural History Museum in Vienna. Additional herbarium collections made in the 19th and early 20th centuries proved to represent potentially separate species, although their true identities remained a mystery to most botanists. Following two decades of fieldwork, thorough studies of these herbarium collections, and crucial contributions by citizen scientists and social media, it was recently established that the Drosera microphylla complex comprises nine distinct species. Two of these new species were re-discovered in a wildflower Facebook group almost 170 years after they were first collected, highlighting the importance of citizen science for such taxonomic research. All nine species of the complex will be introduced with numerous pictures and information about their taxonomic history, distribution, and potential threats.

Bio: Thilo Krueger is a PhD student at Curtin University (Perth, Western Australia) researching carnivorous plants. He is particularly interested in their ecology, taxonomy, and conservation, primarily studying them by field research throughout Western Australia. Currently, he is researching plant-animal interactions such as prey spectra and pollinators, describing new species, and preparing assessments of the conservation status of potentially threatened species.

François Sockhom Mey (France)
The diversity of pitcher plants in Peninsular Malaysia: a taxonomic update

Summary: The last few years have seen renewed interest in the Nepenthes of Peninsular Malaysia, with several new species described from previously poorly botanised regions and also as a direct outcome of improved understanding of the endemic species complexes. The latter has largely resulted from extensive herbarium studies critically supported by targeted expeditions intended both to document in the living state the full range of species variation across the peninsula and to relocate poorly known species at their infrequently visited type localities. This lecture will introduce the audience to the latest species described from Peninsular Malaysia with some belonging to the recently defined Nepenthes macfarlanei complex, a group of species with conspicuous hairs under the lid.

Bio: François Sockhom Mey is a taxonomist and botanical artist specialized in carnivorous plants. He has studied their systematics and ecology in various regions with particular interest in Nepenthes pitcher plants of which he has named a number of species. He is also and awarded botanical artist and has illustrated dozens of new species and produced commission work for publication or private collections.

Dr. hab. Bartosz Jan Płachno (Poland)
Cyto-architecture of Byblis glands based on electron microscopy after conventional and cryo-preparation

Authors: Bartosz J. Płachno (Jagiellonian University), Peter K. Hepler (University of Massachusetts at Amherst), Piotr Świątek (University of Silesia in Katowice), Irene Lichtscheidl (University of Vienna)

Summary: The Australian rainbow plant Byblis has developed sticky trapping leaves independently from its sister clades such as e.g. Pinguicula, although the morphology of their glandular apparatus is in close resemblance. For understanding of glandular physiology, especially the production of secretions, analysis of the cellular ultrastructure is needed, and we therefore submitted Byblis liniflora to transmission electron microscopy (TEM). The results from conventional preparation for TEM by chemical fixation were underpinned by submitting cells to cryo-preparation, i.e. high-pressure freezing and freeze-substitution.
This lecture will show the cytology of the various cell types of Byblis liniflora in relation to their functions.

Bio: Dr. hab. Bartosz Jan Płachno is Professor at the Department of Plant Cytology and Embryology in the Institute of Botany at the Jagiellonian University in Kraków, Poland. His research focusses on structure of plants and their cells, with special emphasize on developmental biology.

PD Dr. Simon Poppinga (Germany)
Biomechanics of snapping, reopening, and narrowing in the trap of Dionaea muscipula

Summary: The Venus flytrap (Dionaea muscipula) is a remarkable shape-shifter, as its traps can switch between different geometric configurations, i.e. the open, closed and constricted states. These transitions are partly even reversible, for example, when the trap reopens after an unsuccessful prey capture attempt. In my talk, I will explain this complex behavior from a mechanical-engineering point of view, highlight the functional robustness as well as the morphological constraints of this trap system, and give an outlook on the technical applicability of the fundamental functional principles.

Bio: PD Dr. Simon Poppinga is senior lecturer and scientific director of the Botanical Garden at the TU Darmstadt, Germany. His research focuses on the biomechanics and functional morphology of plants and animals in a variety of contexts, e.g. prey capture, dispersal, and attachment. In addition, he has a strong interest in abstracting working principles for biomimetic transfer to engineered structures and materials, contributing to the development of smart future technologies.

Wir freuen uns weiterhin auf Vorträge der folgenden Personen. Die Zusammenfassungen und Vorstellungen werden ergänzt, sobald sie vorliegen

We are looking forward to Lectures of the following persons. / Summaries and Bios will be added as soon as we have them.

  • Hendre Barnard (South Africa)
  • Alexander Dietrick (USA)
    • Tropical Drosera of Africa
  • Andreas Fleischmann (Germany)
  • Oliver Gluch (Germany)
    • Pinguicula of Spain
  • Fernando Rivadavia (USA)
    • Carnivorous plants of the Amazonian Floodplains

Zeitplan / Time Table

Freitag / Friday (24.05.2024)

11:00 Eröffnungsrede / Opening Speech
11:30 Vortrag 1 / Lecture 1
12:20 Vortrag 2 / Lecture 2
13:10 Pause / Break
13:40 Vortrag 3 / Lecture 3
14:30 Vortrag 4 / Lecture 4
15:20 Pause / Break
15:35 Vortrag 5 / Lecture 5
16:20 Vortrag 6 / Lecture 6
17:10 Ende / End

Samstag / Saturday (25.05.2024)

10:00 Vortrag 7 / Lecture 7
10:50 Pause / Break
11:00 Vortrag 8 / Lecture 8
11:50 Vortrag 9 / Lecture 9
12:40 Pause / Break
13:40 Vortrag 10 / Lecture 10
14:30 Pause / Break
14:45 Jubiläumsrede / Anniversary speech (in deutsch / in German)
Frei zugänglich / Open to the public
15:45 Pause / Break
16:00 Vortrag 11 / Lecture 11
16:50 Vortrag 12 / Lecture 12
17:40 Ende / End

Sonntag / Sunday (26.05.2024)

10:00 Vortrag 13 / Lecture 13
10:50 Pause / Break
11:00 Vortrag 14 / Lecture 14
11:50 Vortrag 15 / Lecture 15
12:40 Pause / Break
13:40 Vortrag 16 / Lecture 16
14:30 Pause / Break
14:45 Vortrag 17 / Lecture 17
15:35 Pause / Break
15:50 Vortrag 18 / Lecture 18
16:40 Vortrag 19 / Lecture 19
17:30 Ende / End

Änderungen im Ablauf und der Voträge (Themen als auch Anzahl) vorbehalten. / Number of lectures as well as times and titles are subject to change.