Biomineralización regenerativa del caparazón de erizo de mar
- Mª del Camino Molina Sierra 1
- Pedro Álvarez-Lloret 2
- Antonio Checa 1
- Alejandro Rodríguez-Navarro 1
- Félix Hidalgo Puertas 1
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1
Universidad de Granada
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2
Universidad de Oviedo
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ISSN: 1576-5172
Year of publication: 2012
Issue Title: VIII Congreso Geológico de España, Oviedo, 17-19 de julio, 2012.
Issue: 13
Pages: 1108-1111
Type: Article
More publications in: Geotemas (Madrid)
Abstract
The echinoids or sea urchins are marine invertebrates characterized by having an internal skeleton or mineralized test. The sea urchin test is composed of numerous mineral plates called ossicles fused together by connective tissue and overlying dermis. The biomineral precipitated by the organism from larval to adult stage is rich in magnesium calcium carbonate. The aim of this study is to characterize the evolution and regenerative capacity of the sea urchin after induced damage to its test. For this purpose, we have employed complementary analytical techniques, such as scanning electron microscopy and X-ray diffraction, which allow us to analyze the characteristics and properties of the regenerated mineralized tissue. This regeneration is initiated soon after the induced damage and progresses to acquire the complex conformation of the original mineralized tissue. Thus, the mineralized tissue regenerated, formed by biogenic calcite, and gradually acquires the crystal properties and morphology of the shell without damage.