Prism substructures in the shell of Pinna nobilis (Linnaeus, 1758), Mollusca – Evidence for a three-dimensional pulsed-growth model

Autor: Jean-Pierre Cuif, Oulfa Belhadj, Stephan Borensztajn, Marc Gèze, Sergio Trigos-Santos, Patricia Prado, Yannicke Dauphin

Publikováno v: Heliyon, Vol 6, Iss 7, Pp e04513- (2020)

In the shells of the Pelecypods belonging to the Pinnidae family, the calcareous prismatic units of the outer layer are long-standing references for biomineralization studies. To elucidate how the mechanism of prism formation enables both shell elong

Externí odkaz: https://doaj.org/article/b170ab022ac24fc885f2a0dc803192a6

Non‐spherical pearl layers in the Polynesian ‘black‐lipped’ Pinctada margaritifera : The non‐nacreous deposits compared to microstructure of the shell growing edge

Autor: Marine Cotte, Cédrik Lo, Yannicke Dauphin, Denis Saulnier, Oulfa Belhadj, Stéphan Rouzière, Kadda Medjoubi, Murielle Salomé, Jean-Pierre Cuif, Andreas Somogyi, Gilles Luquet

Publikováno v: Aquaculture Research
Aquaculture Research, Wiley, 2019, 51 (2), pp.506-522. ⟨10.1111/are.14395⟩

International audience; Cultivated pearls frequently exhibit morphological irregularities making obvious that mineral deposition was irregularly distributed onto nucleus surface. Taking advantage of experimental cultivations with short durations (fro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee651127ccceac8cd8408ead0087f73a
https://doi.org/10.1111/are.14395

Breaking the long-standing morphological paradigm: Individual prisms in the pearl oyster shell grow perpendicular to the c-axis of calcite

Autor: Peter Fratzl, Claire Rollion-Bard, Yannicke Dauphin, Alex Berner, Jean-Pierre Cuif, E. Lakin, Emil Zolotoyabko

Publikováno v: Journal of Structural Biology
Journal of Structural Biology, Elsevier, 2019, 205, pp.121-132. ⟨10.1016/j.jsb.2019.01.004⟩

Cross-sections of calcitic prismatic layers in mollusk shells, cut perpendicular to growth direction, reveal well-defined polygonal shapes of individual “grains” clearly visible by light and electron microscopy. For several kinds of shells, it wa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6179900b5567afa4d0d3a40b6b7b6606
https://doi.org/10.1016/j.jsb.2019.01.004

Synchrotron-based HR-fluorescence and mineralogical mapping of the initial growth stages of polynesian cultivated pearls disprove the 'reversed shell' concept

Autor: Jean-Pierre Cuif, Yannicke Dauphin, Cédrik Lo, Kadda Medjoubi, Denis Saulnier, Andrea Somogyi

Publikováno v: 'Minerals ', vol: 12, pages: 172-1-172-15 (2022)
Minerals; Volume 12; Issue 2; Pages: 172
Minerals (2075-163X) (MDPI AG), 2022-02, Vol. 12, N. 2, P. 172 (15p.)
Minerals

In a series of Polynesian pearls collected after short cultivation periods, early post-grafting mineral deposits were characterized by high resolution synchrotron-based X-ray fluorescence with unprecedented accuracy. Morphological patterns and elemen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f2638b9ffc04c4bc9fcbc44d3cb9376
https://epn-library.esrf.fr/flora/jsp/index_view_direct_anonymous.jsp?record=doc:PUB_ESRF:59779

Structure and composition of Unio pictorum shell: arguments for the diversity of the nacroprismatic arrangement in molluscs

Autor: Murielle Salomé, Yannicke Dauphin, Jean-Pierre Cuif, Ludovic Bellot-Gurlet, Gilles Luquet

Publikováno v: Journal of Microscopy. 270:156-169

Mollusc shells are complex organomineral structures, the arrangement and composition depending on the species. Most studies are dedicated to shells composed of an aragonite nacreous and a calcite prismatic layer, so the nacreous prismatic model based

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::809647df6d96d4b47dd151a168784788
https://doi.org/10.1111/jmi.12669