The water-repellent cerotegument of whip-spiders (Arachnida: Amblypygi) |
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| Affiliation: | 1. Functional Morphology and Biomechanics, Zoological Institute, University of Kiel, Am Botanischen Garten 9, 24118, Kiel, Germany;2. Department of Biological Sciences, Macquarie University, Sydney, NSW, 2109, Australia;3. Department of Integrative Zoology, University of Vienna, Faculty of Life Science, Althanstrasse 14, 1090, Vienna, Austria;4. Institute of Zoology, Department of Integrative Biology and Biodiversity Research, University of Natural Resources and Life Sciences, Gregor Mendel Strasse 33, 1180, Vienna, Austria;1. Evolutionary Biomaterials Group, Department of Thin Films and Biological Systems, Max Planck Institute for Intelligent Systems, Heisenbergstraße 03, D-70569 Stuttgart, Germany;2. Functional Morphology and Biomechanics, Zoological Institute, Christian-Albrechts-Universität zu Kiel, Am Botanischen Garten 1-9, D-24098 Kiel, Germany;1. School of Biological Sciences, University of Nebraska, 348 Manter Hall, Lincoln, NE 68588, USA;2. Instituto de Ecologia, Xalapa, Veracruz 91070, Mexico;3. Department of Psychology and J.P. Scott Center for Neuroscience, Mind and Behavior, Bowling Green State University, Bowling Green, OH 43403, USA;4. Escuela de Biología, Universidad de Costa Rica, 2060 San José, Costa Rica;5. Department of Zoology, Michigan State University, 3700 E Gull Lake Dr, Hickory Corners, MI 49060, USA;6. Department of Biology and Allied Health, Southern Adventist University, Collegedale, TN 37315, USA;7. Department of Biology, University of Puerto Rico Rio Piedras, P.O. Box 70377, San Juan, PR 00931, USA;8. Department of Bioscience, Aarhus University, Ny Munkegade 116 Building 1540, 8000 Aarhus C, Denmark;9. Department of Biological Sciences, Bowling Green State University, Bowling Green, OH 43403, USA;1. Functional Morphology and Biomechanics, Zoological Institute, Kiel University, Am Botanischen Garten 1–9, 24098 Kiel, Germany;2. Technische Universität Darmstadt, Fachbereich Chemie, Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Alarich-Weiss-Str. 12, 64287 Darmstadt, Germany;1. Functional Morphology and Biomechanics, Zoological Institute, University of Kiel, Am Botanischen Garten 9, D-24098 Kiel, Germany;2. Ottenbohlstr. 12, D-88690 Mühlhofen, Germany;1. Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, 14424, Potsdam, Germany;2. Max Planck Institute of Microstructure Physics, D-06120, Halle/Saale, Germany;3. Department of Neurobiology, Life Sciences, University of Vienna, Vienna, Austria |
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| Abstract: | The cuticle of arthropods is usually composed of layers of a chitin-protein-microcomposite, a proteinaceous epicuticle and a thin lipid coating. However, in some instances a thick cement layer (cerotegument) covers the cuticle and may produce elaborate microstructures. This has previously been described for millipedes and mites. Here we report the previously unknown presence of a superhydrophobic cerotegument in whip-spiders (Ambypygi) and reveal its variation in ultrastructure and water-repellence between species. We discuss the relevance of found micro-morphological and physical characters for taxonomy and phylogenetics of this group, and the potential biological functions. |
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| Keywords: | Anti-wetting Surface coating Plastron Colloid Arachnida Amblypygi |
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