Visceral-locomotory pistoning in crawling caterpillars

Current Biology : CB
Michael A SimonB A Trimmer

Abstract

Animals with an open coelom do not fully constrain internal tissues, and changes in tissue or organ position during body movements cannot be readily discerned from outside of the body. This complicates modeling of soft-bodied locomotion, because it obscures potentially important changes in the center of mass as a result of internal tissue movements. We used phase-contrast synchrotron X-ray imaging and transmission light microscopy to directly visualize internal soft-tissue movements in freely crawling caterpillars. Here we report a novel visceral-locomotory piston in crawling Manduca sexta larvae, in which the gut slides forward in advance of surrounding tissues. The initiation of gut sliding is synchronous with the start of the terminal prolegs' swing phase, suggesting that the animal's center of mass advances forward during the midabdominal prolegs' stance phase and is therefore decoupled from visible translations of the body. Based on synchrotron X-ray data and transmission light microscopy results, we present evidence for a two-body mechanical system with a nonlinear elastic gut that changes size and translates between the anterior and posterior of the animal. The proposed two-body system--the container and the contained--i...Continue Reading

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Citations

Apr 16, 2013·Trends in Biotechnology·Sangbae KimBarry Trimmer
Feb 5, 2013·Artificial Life·John RieffelBarry Trimmer
Sep 8, 2012·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Ellie S HeckscherChris Q Doe
Apr 11, 2014·Journal of the Royal Society, Interface·Shigeru KurodaToshiyuki Nakagaki
Jun 20, 2014·Integrative and Comparative Biology·B A Trimmer, Huai-ti Lin
Aug 24, 2010·Current Biology : CB·G P Sutton
Jan 11, 2014·Biological Reviews of the Cambridge Philosophical Society·L I van Griethuijsen, B A Trimmer
Feb 6, 2018·Advanced Materials·Chengjun WangCunjiang Yu
Apr 18, 2018·Soft Robotics·John Rieffel, Jean-Baptiste Mouret
May 5, 2018·The Journal of Experimental Biology·Ritwika MukherjeeBarry A Trimmer
Dec 14, 2018·Bioinspiration & Biomimetics·Joey Z GeNéstor O Pérez-Arancibia
Mar 13, 2015·Scientific Reports·Rajmund MoksoHolger G Krapp
Jul 18, 2019·Soft Robotics·Krishna Manaswi DigumartiJonathan Rossiter
Feb 5, 2015·Bioinspiration & Biomimetics·Dieter W SchuldtBarry Trimmer
Jun 13, 2020·The Journal of Experimental Biology·Cinzia MetalloBarry A Trimmer
Jun 8, 2018·Journal of Insect Science·Samuel C VaughanBarry A Trimmer
Jul 11, 2020·The Journal of Experimental Biology·Ritwika MukherjeeBarry A Trimmer
Apr 17, 2019·Scientific Reports·Hodjat PendarJohn J Socha
Jan 18, 2013·The Journal of Experimental Biology·Linnea I van GriethuijsenBarry A Trimmer

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