第1106回生物科学セミナー

Living in a sticky trap: insights into biomechanics of plant-insect interactions

Dagmar Voigt(Department of Biology, Institute for Botany, Technical University Dresden, Germany)

2016年06月17日(金)    16:50-18:20  理学部2号館 講堂   

The three-dimensional trap of the South African dew plant Roridula gorgonias Planch.
(Roridulaceae) consists of several functional units of various levels. It's glandular
trichomes release an adhesive, visco-elastic, resinous secretion that traps a variety
of insects including those having a considerable body mass. In spite of such an
elaborate trapping system of the plant, specialized mutualistic mirid bugs Pameridea
roridulae Reut. (Heteroptera, Miridae) live on R. gorgonias and feed on glued insects
without being trapped. How do bugs overcome the sticky plant surface? The
fascinating mutualism has been explored by a combination of microscopical and
biomechanical studies, which will be presented during the seminar.

参考文献
Voigt, D.; Gorb, S. (2008): An insect trap as habitat: cohesion-failure mechanism prevents
adhesion of Pameridea roridulae bugs to the sticky surface of the plant Roridula gorgonias.
Journal of Experimental Biology 211: 2647-2657. DOI:10.1242/jeb.019273
Voigt, D.; Gorb, E.; Gorb, S. (2009): Hierarchichal organisation of the trap in the
protocarnivorous plant Roridula gorgonias (Roridulaceae). Journal of Experimental Biology
212: 3184-3191. DOI:10.1242/jeb.034280
Voigt, D.; Gorb, S. (2010): Locomotion in a sticky terrain. Arthropod-Plant Interactions 4: 69-
79. DOI:10.1007/s11829-010-9088-1
Voigt, D.; Gorb, S. (2010): Desiccation resistance of adhesive secretion in the
protocarnivorous plant Roridula gorgonias as an adaptation to periodically dry environment.
Planta 232: 1511-1515. DOI:10.1007/s00425-010-1270-2
Voigt, D.; Konrad, W.; Gorb, S. (2015): Adhesive secretion in the flypaper plant Roridula
gorgonias: glueing underwater. Journal of Royal Society Interface Focus 5: 20140053.
DOI:10.1098/rsfs.2014.0053.
Frenzke, L.; Lederer, A.; Malanin, M.; Eichhorn, K.-J.; Neinhuis, C.; Voigt, D. (2016) Plant
pressure sensitive adhesives: similar chemical properties in distantly related plant lineages.
Planta: DOI: 10.1007/s00425-016-2496-4.