The role of aspartic acid in reducing coral calcification under ocean acidification conditions
Biomolecules play key roles in regulating the precipitation of CaCO 3 biominerals but their response to ocean acidification is poorly understood. We analysed the skeletal intracrystalline amino acids of massive, tropical Porites spp. corals cultured over different seawater pCO 2 . We find that conce...
Published in: | Scientific Reports |
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2020
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Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/the-role-of-aspartic-acid-in-reducing-coral-calcification-under-ocean-acidification-conditions(a19103d2-2a3c-43a9-9feb-0442543fa370).html https://doi.org/10.1038/s41598-020-69556-0 https://research-repository.st-andrews.ac.uk/bitstream/10023/20415/1/Kellock_2020_SR_Asparticacid_CC.pdf |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/a19103d2-2a3c-43a9-9feb-0442543fa370 2024-09-15T18:27:37+00:00 The role of aspartic acid in reducing coral calcification under ocean acidification conditions Kellock, Celeste Cole, Catherine Penkman, Kirsty Evans, David Kroger, Roland Hintz, Chris Hintz, Ken Finch, Adrian Allison, Nicola 2020-07-30 application/pdf https://research-portal.st-andrews.ac.uk/en/researchoutput/the-role-of-aspartic-acid-in-reducing-coral-calcification-under-ocean-acidification-conditions(a19103d2-2a3c-43a9-9feb-0442543fa370).html https://doi.org/10.1038/s41598-020-69556-0 https://research-repository.st-andrews.ac.uk/bitstream/10023/20415/1/Kellock_2020_SR_Asparticacid_CC.pdf eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/the-role-of-aspartic-acid-in-reducing-coral-calcification-under-ocean-acidification-conditions(a19103d2-2a3c-43a9-9feb-0442543fa370).html info:eu-repo/semantics/openAccess Kellock , C , Cole , C , Penkman , K , Evans , D , Kroger , R , Hintz , C , Hintz , K , Finch , A & Allison , N 2020 , ' The role of aspartic acid in reducing coral calcification under ocean acidification conditions ' , Scientific Reports , vol. 10 , 12797 . https://doi.org/10.1038/s41598-020-69556-0 Coral Biomolecules Ocean acidification article 2020 ftunstandrewcris https://doi.org/10.1038/s41598-020-69556-0 2024-08-21T23:46:11Z Biomolecules play key roles in regulating the precipitation of CaCO 3 biominerals but their response to ocean acidification is poorly understood. We analysed the skeletal intracrystalline amino acids of massive, tropical Porites spp. corals cultured over different seawater pCO 2 . We find that concentrations of total amino acids, aspartic acid/asparagine (Asx), glutamic acid/glutamine and alanine are positively correlated with seawater pCO 2 and inversely correlated with seawater pH. Almost all variance in calcification rates between corals can be explained by changes in the skeletal total amino acid, Asx, serine and alanine concentrations combined with the calcification media pH (a likely indicator of the dissolved inorganic carbon available to support calcification). We show that aspartic acid inhibits aragonite precipitation from seawater in vitro, at the pH, saturation state and approximate aspartic acid concentrations inferred to occur at the coral calcification site. Reducing seawater saturation state and increasing [aspartic acid], as occurs in some corals at high pCO 2 , both serve to increase the degree of inhibition, indicating that biomolecules may contribute to reduced coral calcification rates under ocean acidification. Article in Journal/Newspaper Ocean acidification University of St Andrews: Research Portal Scientific Reports 10 1 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Coral Biomolecules Ocean acidification |
spellingShingle |
Coral Biomolecules Ocean acidification Kellock, Celeste Cole, Catherine Penkman, Kirsty Evans, David Kroger, Roland Hintz, Chris Hintz, Ken Finch, Adrian Allison, Nicola The role of aspartic acid in reducing coral calcification under ocean acidification conditions |
topic_facet |
Coral Biomolecules Ocean acidification |
description |
Biomolecules play key roles in regulating the precipitation of CaCO 3 biominerals but their response to ocean acidification is poorly understood. We analysed the skeletal intracrystalline amino acids of massive, tropical Porites spp. corals cultured over different seawater pCO 2 . We find that concentrations of total amino acids, aspartic acid/asparagine (Asx), glutamic acid/glutamine and alanine are positively correlated with seawater pCO 2 and inversely correlated with seawater pH. Almost all variance in calcification rates between corals can be explained by changes in the skeletal total amino acid, Asx, serine and alanine concentrations combined with the calcification media pH (a likely indicator of the dissolved inorganic carbon available to support calcification). We show that aspartic acid inhibits aragonite precipitation from seawater in vitro, at the pH, saturation state and approximate aspartic acid concentrations inferred to occur at the coral calcification site. Reducing seawater saturation state and increasing [aspartic acid], as occurs in some corals at high pCO 2 , both serve to increase the degree of inhibition, indicating that biomolecules may contribute to reduced coral calcification rates under ocean acidification. |
format |
Article in Journal/Newspaper |
author |
Kellock, Celeste Cole, Catherine Penkman, Kirsty Evans, David Kroger, Roland Hintz, Chris Hintz, Ken Finch, Adrian Allison, Nicola |
author_facet |
Kellock, Celeste Cole, Catherine Penkman, Kirsty Evans, David Kroger, Roland Hintz, Chris Hintz, Ken Finch, Adrian Allison, Nicola |
author_sort |
Kellock, Celeste |
title |
The role of aspartic acid in reducing coral calcification under ocean acidification conditions |
title_short |
The role of aspartic acid in reducing coral calcification under ocean acidification conditions |
title_full |
The role of aspartic acid in reducing coral calcification under ocean acidification conditions |
title_fullStr |
The role of aspartic acid in reducing coral calcification under ocean acidification conditions |
title_full_unstemmed |
The role of aspartic acid in reducing coral calcification under ocean acidification conditions |
title_sort |
role of aspartic acid in reducing coral calcification under ocean acidification conditions |
publishDate |
2020 |
url |
https://research-portal.st-andrews.ac.uk/en/researchoutput/the-role-of-aspartic-acid-in-reducing-coral-calcification-under-ocean-acidification-conditions(a19103d2-2a3c-43a9-9feb-0442543fa370).html https://doi.org/10.1038/s41598-020-69556-0 https://research-repository.st-andrews.ac.uk/bitstream/10023/20415/1/Kellock_2020_SR_Asparticacid_CC.pdf |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Kellock , C , Cole , C , Penkman , K , Evans , D , Kroger , R , Hintz , C , Hintz , K , Finch , A & Allison , N 2020 , ' The role of aspartic acid in reducing coral calcification under ocean acidification conditions ' , Scientific Reports , vol. 10 , 12797 . https://doi.org/10.1038/s41598-020-69556-0 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/the-role-of-aspartic-acid-in-reducing-coral-calcification-under-ocean-acidification-conditions(a19103d2-2a3c-43a9-9feb-0442543fa370).html |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s41598-020-69556-0 |
container_title |
Scientific Reports |
container_volume |
10 |
container_issue |
1 |
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1810468845387776000 |