Search Results - "Jean-Pierre Cuif"

Evidence of a Scheduled End for Prism Growth in the Shell of Pinctada margaritifera: Closure of the Calcite Biomineralization Area by a Specific Organic Membrane by Jean-Pierre Cuif, Cedrik Lo, Yannicke Dauphin

“…The shell of the pearl oyster Pinctada margaritifera is made up of two layers: an outer layer of calcite prisms and an inner layer of aragonite tablets. Recent…”
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Formation of the Outer Shell Layer in Pinctada margaritifera: Structural and Biochemical Evidence for a Sequential Development of the Calcite Units by Jean-Pierre Cuif, Angélique Fougerouse, Cedrik Lo, Yannicke Dauphin

“…Calcite prismatic units that form the outer layers of “nacro-prismatic” Pelecypod shells are often used as biomineralization models due to their individual…”
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Non‐spherical pearl layers in the Polynesian ‘black‐lipped’ Pinctada margaritifera: The non‐nacreous deposits compared to microstructure of the shell growing edge by Cuif, Jean‐Pierre, Dauphin, Yannicke, Luquet, Gilles, Belhadj, Oulfa, Rouzière, Stéphan, Salomé, Murielle, Cotte, Marine, Somogyi, Andrea, Medjoubi, Kadda, Lo, Cedrik, Saulnier, Denis

“…Cultivated pearls frequently exhibit morphological irregularities making obvious that mineral deposition was irregularly distributed onto nucleus surface…”
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Distribution of magnesium in coral skeleton by Meibom, Anders, Cuif, Jean-Pierre, Hillion, François, Constantz, Brent R., Juillet-Leclerc, Anne, Dauphin, Yannicke, Watanabe, Tsuyoshi, Dunbar, Robert B.

“…Ion micro‐probe imaging of the aragonite skeleton of Pavona clavus, a massive reef‐building coral, shows that magnesium and strontium are distributed very…”
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On the deep origin of the depressed rings on pearl surface illustrated from Polynesian Pinctada margaritifera (Linnaeus 1758) by Cuif, Jean‐Pierre, Perez‐Huerta, Alberto, Lo, Cédric, Belhadj, Oulfa, Dauphin, Yannicke

“…Among the various defects that contribute to depreciate the commercial value of pearls, the occurrence of depressed rings is the most spectacular. Through a…”
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Compositional variations at ultra-structure length scales in coral skeleton by Meibom, Anders, Cuif, Jean-Pierre, Houlbreque, Fanny, Mostefaoui, Smail, Dauphin, Yannicke, Meibom, Karin L., Dunbar, Robert

“…Distributions of Mg and Sr in the skeletons of a deep-sea coral ( Caryophyllia ambrosia) and a shallow-water, reef-building coral ( Pavona clavus) have been…”
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Synchrotron-Based HR-Fluorescence and Mineralogical Mapping of the Initial Growth Stages of Polynesian Cultivated Pearls Disprove the ‘Reversed Shell’ Concept by Jean-Pierre Cuif, Yannicke Dauphin, Cédrik Lo, Kadda Medjoubi, Denis Saulnier, Andrea Somogyi

“…In a series of Polynesian pearls collected after short cultivation periods, early post-grafting mineral deposits were characterized by high resolution…”
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Control of aragonite deposition in colonial corals by intra-skeletal macromolecules by Falini, Giuseppe, Reggi, Michela, Fermani, Simona, Sparla, Francesca, Goffredo, Stefano, Dubinsky, Zvy, Levi, Oren, Dauphin, Yannicke, Cuif, Jean-Pierre

“…Scleractinian coral skeletons are composed mainly of aragonite in which a small percentage of organic matrix (OM) molecules is entrapped. It is well known that…”
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Biomineralization in Mediterranean Corals: The Role of the Intraskeletal Organic Matrix by Reggi, Michela, Fermani, Simona, Landi, Valerio, Sparla, Francesca, Caroselli, Erik, Gizzi, Francesca, Dubinsky, Zvy, Levy, Oren, Cuif, Jean-Pierre, Dauphin, Yannicke, Goffredo, Stefano, Falini, Giuseppe

“…The precipitation of calcium carbonate was carried out in the presence of the intraskeletal organic matrix (OM) extracted from Mediterranean corals. They were…”
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Vital effects in coral skeletal composition display strict three-dimensional control by Meibom, Anders, Yurimoto, Hiyayoshi, Cuif, Jean-Pierre, Domart-Coulon, Isabelle, Houlbreque, Fanny, Constantz, Brent, Dauphin, Yannicke, Tambutté, E., Tambutté, Sylvie, Allemand, Denis, Wooden, Joseph, Dunbar, Robert

“…Biological control over coral skeletal composition is poorly understood but critically important to paleo‐environmental reconstructions. We present…”
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Biological forcing controls the chemistry of reef-building coral skeleton by Meibom, Anders, Mostefaoui, Smail, Cuif, Jean-Pierre, Dauphin, Yannicke, Houlbreque, Fanny, Dunbar, Robert, Constantz, Brent

“…We present analyses of major elements C and Ca and trace elements N, S, Mg and Sr in a Porites sp. exoskeleton with a spatial resolution better than ∼150 nm…”
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In situ measurements of oxygen isotopic composition in deep-sea coral, Lophelia pertusa: Re-examination of the current geochemical models of biomineralization by Rollion-Bard, Claire, Blamart, Dominique, Cuif, Jean-Pierre, Dauphin, Yannicke

“…We present ion microprobe measurements of oxygen isotopic compositions in the deep-sea coral Lophelia pertusa. Compared to bulk skeletal aragonite fibres, the…”
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Optical Observations and Geochemical Data in Deep-Sea Hexa- and Octo-Coralla Specimens by Claire Rollion-Bard, Jean-Pierre Cuif, Dominique Blamart

“…Coral skeletons are built by Ca-carbonate (calcite or aragonite) crystals that exhibit distinct morphological patterns and specific spatial arrangements that…”
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Suppression of skeletal growth in scleractinian corals by decreasing ambient carbonate-ion concentration: a cross-family comparison by Marubini, Francesca, Ferrier-Pages, Christine, Cuif, Jean-Pierre

“…A. verweyi…”
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Strontium-86 labeling experiments show spatially heterogeneous skeletal formation in the scleractinian coral Porites porites by Houlbrèque, Fanny, Meibom, Anders, Cuif, Jean-Pierre, Stolarski, Jaroslaw, Marrocchi, Yves, Ferrier-Pagès, Christine, Domart-Coulon, Isabelle, Dunbar, Robert B.

“…This paper presents the results of an effort to label calcium carbonates formed by marine organisms with stable isotopes to obtain information about the…”
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Stable Isotopes (δ13C and δ15N) of Organic Matrix from Coral Skeleton by Muscatine, Leonard, Goiran, Claire, Land, Lynton, Jaubert, Jean, Cuif, Jean-Pierre, Allemand, Denis, McFadden, Daniel L.

“…The evolutionary success of reef-building corals in nutrient-poor tropical waters is attributed to endosymbiotic dinoflagellates. The algae release…”
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Prism substructures in the shell of Pinna nobilis (Linnaeus, 1758), Mollusca – Evidence for a three-dimensional pulsed-growth model by Cuif, Jean-Pierre, Belhadj, Oulfa, Borensztajn, Stephan, Gèze, Marc, Trigos-Santos, Sergio, Prado, Patricia, Dauphin, Yannicke

“…In the shells of the Pelecypods belonging to the Pinnidae family, the calcareous prismatic units of the outer layer are long-standing references for…”
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The Prismatic Layer of Pinna: A Showcase of Methodological Problems and Preconceived Hypotheses by Yannicke Dauphin, Alain Brunelle, Kadda Medjoubi, Andrea Somogyi, Jean-Pierre Cuif

“…The prismatic layer of Pinna (Mollusca) is one of the most studied models for the understanding of the biomineralization mechanisms, but our knowledge of the…”
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XANES mapping of organic sulfate in three scleractinian coral skeletons by Cuif, Jean-Pierre, Dauphin, Yannicke, Doucet, Jean, Salome, Murielle, Susini, Jean

“…The presence and localization of organic sulfate within coral skeletons are studied by using X-ray absorption near edge structure spectroscopy (XANES)…”
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In situ distribution and characterization of the organic content of the oyster shell Crassostrea gigas (Mollusca, Bivalvia) by Dauphin, Yannicke, Ball, Alexander D., Castillo-Michel, Hiram, Chevallard, Corinne, Cuif, Jean-Pierre, Farre, Bastien, Pouvreau, Stéphane, Salomé, Murielle

“…► Cultivation of commercial oysters is facing the influence of global change in sea water composition. ► Oyster shell layers are calcitic, with different…”
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