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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...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2013
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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. |
format | Online Article Text |
id | pubmed-3632881 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
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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