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Symmetrization in jellyfish: reorganization to regain function, and not lost parts

Abrams, Michael J. and Goentoro, Lea (2016) Symmetrization in jellyfish: reorganization to regain function, and not lost parts. Zoology, 119 (1). pp. 1-3. ISSN 0944-2006. doi:10.1016/j.zool.2015.10.001.

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We recently reported a previously unidentified strategy of self-repair in the moon jellyfish Aurelia aurita. Rather than regenerating lost parts, juvenile Aurelia reorganize remaining parts to regain essential body symmetry. This process that we called symmetrization is rapid and frequent, and is not driven by cell proliferation or cell death. Instead, the swimming machinery generates mechanical forces that drive symmetrization. We found evidence for symmetrization across three other species of jellyfish (Chrysaora pacifica, Mastigias sp., and Cotylorhiza tuberculata). We propose reorganization to regain function without recovery of initial morphology as a potentially broad class of self-repair strategy beyond radially symmetrical animals, and discuss the implications of this finding on the evolution of self-repair strategies in animals.

Item Type:Article
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URLURL TypeDescription
Goentoro, Lea0000-0002-3904-0195
Additional Information:© 2015 The Authors. Published by Elsevier GmbH. This is an open access article under the CCBY-NC-ND license ( Received 7 October 2015; Accepted 11 October 2015; Available Available online 4 November 2015. We thank Ty Basinger for the image of Aurelia aurita. This work was supported by the National Science Foundation Graduate Research Fellowship Program (to M.J.A.).
Funding AgencyGrant Number
NSF Graduate Research FellowshipUNSPECIFIED
Subject Keywords:Jellyfish; Regeneration; Self-repair; Symmetrization
Issue or Number:1
Record Number:CaltechAUTHORS:20151109-100304020
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Official Citation:Michael J. Abrams, Lea Goentoro, Symmetrization in jellyfish: reorganization to regain function, and not lost parts, Zoology, Volume 119, Issue 1, February 2016, Pages 1-3, ISSN 0944-2006, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:61984
Deposited By: Tony Diaz
Deposited On:09 Nov 2015 18:09
Last Modified:10 Nov 2021 22:56

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