Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/25011
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dc.contributor.authorMoureaux, Claireen_UK
dc.contributor.authorPerez-Huerta, Albertoen_UK
dc.contributor.authorCompère, Philippeen_UK
dc.contributor.authorZhu, Wenzhongen_UK
dc.contributor.authorLeloup, Thierryen_UK
dc.contributor.authorCusack, Maggieen_UK
dc.contributor.authorDubois, Philippeen_UK
dc.date.accessioned2017-08-26T09:52:19Z-
dc.date.available2017-08-26T09:52:19Zen_UK
dc.date.issued2010-04en_UK
dc.identifier.urihttp://hdl.handle.net/1893/25011-
dc.description.abstractSea urchins have characteristic spines that fulfil critical functions. Several studies revealed marked spine internal heterogeneities at different structural levels despite the single-crystal character of the spines. Most of these studies did not speculate about the functional meaning of these heterogeneities. Spine heterogeneities were investigated in the sea urchin Paracentrotus lividus and their possible functional implications discussed. Spines mainly show two morphological parts: the base, made of a meshwork stereom, and the shaft, with longitudinal plain septa and a central core of meshwork stereom. Electron Backscatter Diffraction showed no difference in crystallite orientation between the two structures. Atomic Absorption Spectrometry and Energy dispersive X-ray analysis revealed that Mg was not uniformly distributed in the spine. Mg concentration is higher in the inner part of the septa than in the septum outer part. Furthermore, a cyclic pattern of Mg concentration in septa was observed. This is suggested to be linked to the spine ontogeny. Nano- and microindentation analyses revealed that the septa have higher stiffness and hardness than the meshwork stereom and that septum stiffness and hardness present different trends in longitudinal and transverse section. These mechanical heterogeneities may have an adaptive functional value. © 2010 Elsevier Inc.en_UK
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.relationMoureaux C, Perez-Huerta A, Compère P, Zhu W, Leloup T, Cusack M & Dubois P (2010) Structure, composition and mechanical relations to function in sea urchin spine. Journal of Structural Biology, 170 (1), pp. 41-49. https://doi.org/10.1016/j.jsb.2010.01.003en_UK
dc.rightsThe publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.en_UK
dc.rights.urihttp://www.rioxx.net/licenses/under-embargo-all-rights-reserveden_UK
dc.subjectSea urchinen_UK
dc.subjectspineen_UK
dc.subjectanisotropyen_UK
dc.subjectsingle crystalen_UK
dc.subjectmagnesiumen_UK
dc.subjectmechanical propertiesen_UK
dc.titleStructure, composition and mechanical relations to function in sea urchin spineen_UK
dc.typeJournal Articleen_UK
dc.rights.embargodate2999-12-12en_UK
dc.rights.embargoreason[1-s2.0-S1047847710000043-main.pdf] The publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work.en_UK
dc.identifier.doi10.1016/j.jsb.2010.01.003en_UK
dc.identifier.pmid20064619en_UK
dc.citation.jtitleJournal of Structural Biologyen_UK
dc.citation.issn1047-8477en_UK
dc.citation.volume170en_UK
dc.citation.issue1en_UK
dc.citation.spage41en_UK
dc.citation.epage49en_UK
dc.citation.publicationstatusPublisheden_UK
dc.citation.peerreviewedRefereeden_UK
dc.type.statusVoR - Version of Recorden_UK
dc.author.emailmaggie.cusack@stir.ac.uken_UK
dc.citation.date11/01/2010en_UK
dc.contributor.affiliationUniversite Libre de Bruxellesen_UK
dc.contributor.affiliationUniversity of Alabama (Tuscaloosa)en_UK
dc.contributor.affiliationUniversity of Liegeen_UK
dc.contributor.affiliationUniversity of the West of Scotlanden_UK
dc.contributor.affiliationUniversite Libre de Bruxellesen_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationUniversite Libre de Bruxellesen_UK
dc.identifier.isiWOS:000276329600005en_UK
dc.identifier.scopusid2-s2.0-77950516377en_UK
dc.identifier.wtid541296en_UK
dc.contributor.orcid0000-0003-0145-1180en_UK
dc.date.accepted2010-01-02en_UK
dcterms.dateAccepted2010-01-02en_UK
dc.date.filedepositdate2017-02-23en_UK
rioxxterms.typeJournal Article/Reviewen_UK
rioxxterms.versionVoRen_UK
local.rioxx.authorMoureaux, Claire|en_UK
local.rioxx.authorPerez-Huerta, Alberto|en_UK
local.rioxx.authorCompère, Philippe|en_UK
local.rioxx.authorZhu, Wenzhong|en_UK
local.rioxx.authorLeloup, Thierry|en_UK
local.rioxx.authorCusack, Maggie|0000-0003-0145-1180en_UK
local.rioxx.authorDubois, Philippe|en_UK
local.rioxx.projectInternal Project|University of Stirling|https://isni.org/isni/0000000122484331en_UK
local.rioxx.freetoreaddate2999-12-12en_UK
local.rioxx.licencehttp://www.rioxx.net/licenses/under-embargo-all-rights-reserved||en_UK
local.rioxx.filename1-s2.0-S1047847710000043-main.pdfen_UK
local.rioxx.filecount1en_UK
local.rioxx.source1047-8477en_UK
Appears in Collections:Biological and Environmental Sciences Journal Articles

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