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Biogenic Fish-gut Calcium Carbonate is a Stable Amorphous Phase in the Gilt-head Seabream, Sparus aurata

The main source of calcium carbonate (CaCO(3)) in the ocean comes from the shells of calcifying planktonic organisms, but substantial amounts of CaCO(3) are also produced in fish intestines. The precipitation of CaCO(3) assists fish in intestinal water absorption and aids in whole body Ca(2+) homeos...

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Detalles Bibliográficos
Autores principales: Foran, Elizabeth, Weiner, Steve, Fine, Maoz
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3632881/
https://www.ncbi.nlm.nih.gov/pubmed/23609008
http://dx.doi.org/10.1038/srep01700
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author Foran, Elizabeth
Weiner, Steve
Fine, Maoz
author_facet Foran, Elizabeth
Weiner, Steve
Fine, Maoz
author_sort Foran, Elizabeth
collection PubMed
description The main source of calcium carbonate (CaCO(3)) in the ocean comes from the shells of calcifying planktonic organisms, but substantial amounts of CaCO(3) are also produced in fish intestines. The precipitation of CaCO(3) assists fish in intestinal water absorption and aids in whole body Ca(2+) homeostasis. Here we report that the product formed in the intestinal lumen of the gilt-head seabream, Sparus aurata, is an amorphous calcium carbonate (ACC) phase. With FTIR spectroscopy and SEM imaging, our study shows that the fish-derived carbonates from S. aurata are maintained as a stable amorphous phase throughout the intestinal tract. Moreover, intestinal deposits contained up to 54 mol% Mg(2+), the highest concentration yet reported in biogenic ACC. Mg is most likely responsible for stabilizing this inherently unstable mineral. The fish carbonates also displayed initial rapid dissolution when exposed to seawater, exhibiting a significant increase in carbonate concentration.
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spelling pubmed-36328812013-04-23 Biogenic Fish-gut Calcium Carbonate is a Stable Amorphous Phase in the Gilt-head Seabream, Sparus aurata Foran, Elizabeth Weiner, Steve Fine, Maoz Sci Rep Article The main source of calcium carbonate (CaCO(3)) in the ocean comes from the shells of calcifying planktonic organisms, but substantial amounts of CaCO(3) are also produced in fish intestines. The precipitation of CaCO(3) assists fish in intestinal water absorption and aids in whole body Ca(2+) homeostasis. Here we report that the product formed in the intestinal lumen of the gilt-head seabream, Sparus aurata, is an amorphous calcium carbonate (ACC) phase. With FTIR spectroscopy and SEM imaging, our study shows that the fish-derived carbonates from S. aurata are maintained as a stable amorphous phase throughout the intestinal tract. Moreover, intestinal deposits contained up to 54 mol% Mg(2+), the highest concentration yet reported in biogenic ACC. Mg is most likely responsible for stabilizing this inherently unstable mineral. The fish carbonates also displayed initial rapid dissolution when exposed to seawater, exhibiting a significant increase in carbonate concentration. Nature Publishing Group 2013-04-23 /pmc/articles/PMC3632881/ /pubmed/23609008 http://dx.doi.org/10.1038/srep01700 Text en Copyright © 2013, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/
spellingShingle Article
Foran, Elizabeth
Weiner, Steve
Fine, Maoz
Biogenic Fish-gut Calcium Carbonate is a Stable Amorphous Phase in the Gilt-head Seabream, Sparus aurata
title Biogenic Fish-gut Calcium Carbonate is a Stable Amorphous Phase in the Gilt-head Seabream, Sparus aurata
title_full Biogenic Fish-gut Calcium Carbonate is a Stable Amorphous Phase in the Gilt-head Seabream, Sparus aurata
title_fullStr Biogenic Fish-gut Calcium Carbonate is a Stable Amorphous Phase in the Gilt-head Seabream, Sparus aurata
title_full_unstemmed Biogenic Fish-gut Calcium Carbonate is a Stable Amorphous Phase in the Gilt-head Seabream, Sparus aurata
title_short Biogenic Fish-gut Calcium Carbonate is a Stable Amorphous Phase in the Gilt-head Seabream, Sparus aurata
title_sort biogenic fish-gut calcium carbonate is a stable amorphous phase in the gilt-head seabream, sparus aurata
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3632881/
https://www.ncbi.nlm.nih.gov/pubmed/23609008
http://dx.doi.org/10.1038/srep01700
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