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dc.contributor.authorCheca González, Antonioes_ES
dc.contributor.authorMacías-Sánchez, Elenaes_ES
dc.contributor.authorRamírez-Rico, Joaquínes_ES
dc.identifier.citationCheca González, A.; Macías-Sánchez, E.; Ramírez-Rico, J. Biological strategy for the fabrication of highly ordered aragonite helices: The microstructure of the cavolinioidean gastropods. Scientific Reports, 6: 25989 (2016). []es_ES
dc.description.abstractThe Cavolinioidea are planktonic gastropods which construct their shells with the so-called aragonitic helical fibrous microstructure, consisting of a highly ordered arrangement of helically coiled interlocking continuous crystalline aragonite fibres. Our study reveals that, despite the high and continuous degree of interlocking between fibres, every fibre has a differentiated organic-rich thin external band, which is never invaded by neighbouring fibres. In this way, fibres avoid extinction. These intra-fibre organic-rich bands appear on the growth surface of the shell as minuscule elevations, which have to be secreted differentially by the outer mantle cells. We propose that, as the shell thickens during mineralization, fibre secretion proceeds by a mechanism of contact recognition and displacement of the tips along circular trajectories by the cells of the outer mantle surface. Given the sizes of the tips, this mechanism has to operate at the subcellular level. Accordingly, the fabrication of the helical microstructure is under strict biological control. This mechanism of fibre-by-fibre fabrication by the mantle cells is unlike that any other shell microstructure.en_EN
dc.description.sponsorshipFunding was provided by Research Projects CGL2013-48247-P of the Spanish Ministerio de Economía y Competitividad (MINECO) and Fondo Europeo de Desarrollo Regional (FEDER), and P10-RNM6433 of the Andalusian Consejería de Economía, Investigación, Ciencia y Empleo, of the Junta de Andalucía, and by the Research Group RNM363 (latter Institution).en_EN
dc.publisherNature Publishing Groupes_ES
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivs 3.0 License
dc.subjectNanoscale biophysicsen_EN
dc.subjectHelical fibrous microstructureen_EN
dc.subjectCrystalline aragonite fibresen_EN
dc.titleBiological strategy for the fabrication of highly ordered aragonite helices: The microstructure of the cavolinioidean gastropodsen_EN

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