Temperature Modulates the Effects of Ocean Acidification on Intestinal Ion Transport in Atlantic Cod, Gadus morhua
CO2-driven seawater acidification has been demonstrated to enhance intestinal bicarbonate secretion rates in teleosts, leading to an increased release of CaCO3 under simulated ocean acidification scenarios. In this study, we investigated if increasing CO2 levels stimulate the intestinal acid–base re...
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ftoceanrep:oai:oceanrep.geomar.de:33404 2023-05-15T15:27:18+02:00 Temperature Modulates the Effects of Ocean Acidification on Intestinal Ion Transport in Atlantic Cod, Gadus morhua Hu, Marian Yong-An Michael, Katharina Kreiss, Cornelia M. Stumpp, Meike Dupont, Sam Tseng, Yung-Che Lucassen, Magnus 2016-06-02 text https://oceanrep.geomar.de/id/eprint/33404/ https://oceanrep.geomar.de/id/eprint/33404/1/fphys-07-00198.pdf https://doi.org/10.3389/fphys.2016.00198 en eng Frontiers https://oceanrep.geomar.de/id/eprint/33404/1/fphys-07-00198.pdf Hu, M. Y. A., Michael, K., Kreiss, C. M., Stumpp, M., Dupont, S., Tseng, Y. C. and Lucassen, M. (2016) Temperature Modulates the Effects of Ocean Acidification on Intestinal Ion Transport in Atlantic Cod, Gadus morhua. Open Access Frontiers in Physiology, 7 (Art. Nr. 198). DOI 10.3389/fphys.2016.00198 <https://doi.org/10.3389/fphys.2016.00198>. doi:10.3389/fphys.2016.00198 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2016 ftoceanrep https://doi.org/10.3389/fphys.2016.00198 2023-04-07T15:26:43Z CO2-driven seawater acidification has been demonstrated to enhance intestinal bicarbonate secretion rates in teleosts, leading to an increased release of CaCO3 under simulated ocean acidification scenarios. In this study, we investigated if increasing CO2 levels stimulate the intestinal acid–base regulatory machinery of Atlantic cod (Gadus morhua) and whether temperatures at the upper limit of thermal tolerance stimulate or counteract ion regulatory capacities. Juvenile G. morhua were acclimated for 4 weeks to three CO2 levels (550, 1200, and 2200 μatm) covering present and near-future natural variability, at optimum (10°C) and summer maximum temperature (18°C), respectively. Immunohistochemical analyses revealed the subcellular localization of ion transporters, including Na+/K+-ATPase (NKA), Na+/H+-exchanger 3 (NHE3), Na+/HCO−3 cotransporter (NBC1), pendrin-like Cl−/HCO−3 exchanger (SLC26a6), V-type H+-ATPase subunit a (VHA), and Cl− channel 3 (CLC3) in epithelial cells of the anterior intestine. At 10°C, proteins and mRNA were generally up-regulated for most transporters in the intestinal epithelium after acclimation to higher CO2 levels. This supports recent findings demonstrating increased intestinal HCO−3 secretion rates in response to CO2 induced seawater acidification. At 18°C, mRNA expression and protein concentrations of most ion transporters remained unchanged or were even decreased, suggesting thermal compensation. This response may be energetically favorable to retain blood HCO−3 levels to stabilize pHe, but may negatively affect intestinal salt and water resorption of marine teleosts in future oceans. Article in Journal/Newspaper atlantic cod Gadus morhua Ocean acidification OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Frontiers in Physiology 7 |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
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English |
description |
CO2-driven seawater acidification has been demonstrated to enhance intestinal bicarbonate secretion rates in teleosts, leading to an increased release of CaCO3 under simulated ocean acidification scenarios. In this study, we investigated if increasing CO2 levels stimulate the intestinal acid–base regulatory machinery of Atlantic cod (Gadus morhua) and whether temperatures at the upper limit of thermal tolerance stimulate or counteract ion regulatory capacities. Juvenile G. morhua were acclimated for 4 weeks to three CO2 levels (550, 1200, and 2200 μatm) covering present and near-future natural variability, at optimum (10°C) and summer maximum temperature (18°C), respectively. Immunohistochemical analyses revealed the subcellular localization of ion transporters, including Na+/K+-ATPase (NKA), Na+/H+-exchanger 3 (NHE3), Na+/HCO−3 cotransporter (NBC1), pendrin-like Cl−/HCO−3 exchanger (SLC26a6), V-type H+-ATPase subunit a (VHA), and Cl− channel 3 (CLC3) in epithelial cells of the anterior intestine. At 10°C, proteins and mRNA were generally up-regulated for most transporters in the intestinal epithelium after acclimation to higher CO2 levels. This supports recent findings demonstrating increased intestinal HCO−3 secretion rates in response to CO2 induced seawater acidification. At 18°C, mRNA expression and protein concentrations of most ion transporters remained unchanged or were even decreased, suggesting thermal compensation. This response may be energetically favorable to retain blood HCO−3 levels to stabilize pHe, but may negatively affect intestinal salt and water resorption of marine teleosts in future oceans. |
format |
Article in Journal/Newspaper |
author |
Hu, Marian Yong-An Michael, Katharina Kreiss, Cornelia M. Stumpp, Meike Dupont, Sam Tseng, Yung-Che Lucassen, Magnus |
spellingShingle |
Hu, Marian Yong-An Michael, Katharina Kreiss, Cornelia M. Stumpp, Meike Dupont, Sam Tseng, Yung-Che Lucassen, Magnus Temperature Modulates the Effects of Ocean Acidification on Intestinal Ion Transport in Atlantic Cod, Gadus morhua |
author_facet |
Hu, Marian Yong-An Michael, Katharina Kreiss, Cornelia M. Stumpp, Meike Dupont, Sam Tseng, Yung-Che Lucassen, Magnus |
author_sort |
Hu, Marian Yong-An |
title |
Temperature Modulates the Effects of Ocean Acidification on Intestinal Ion Transport in Atlantic Cod, Gadus morhua |
title_short |
Temperature Modulates the Effects of Ocean Acidification on Intestinal Ion Transport in Atlantic Cod, Gadus morhua |
title_full |
Temperature Modulates the Effects of Ocean Acidification on Intestinal Ion Transport in Atlantic Cod, Gadus morhua |
title_fullStr |
Temperature Modulates the Effects of Ocean Acidification on Intestinal Ion Transport in Atlantic Cod, Gadus morhua |
title_full_unstemmed |
Temperature Modulates the Effects of Ocean Acidification on Intestinal Ion Transport in Atlantic Cod, Gadus morhua |
title_sort |
temperature modulates the effects of ocean acidification on intestinal ion transport in atlantic cod, gadus morhua |
publisher |
Frontiers |
publishDate |
2016 |
url |
https://oceanrep.geomar.de/id/eprint/33404/ https://oceanrep.geomar.de/id/eprint/33404/1/fphys-07-00198.pdf https://doi.org/10.3389/fphys.2016.00198 |
genre |
atlantic cod Gadus morhua Ocean acidification |
genre_facet |
atlantic cod Gadus morhua Ocean acidification |
op_relation |
https://oceanrep.geomar.de/id/eprint/33404/1/fphys-07-00198.pdf Hu, M. Y. A., Michael, K., Kreiss, C. M., Stumpp, M., Dupont, S., Tseng, Y. C. and Lucassen, M. (2016) Temperature Modulates the Effects of Ocean Acidification on Intestinal Ion Transport in Atlantic Cod, Gadus morhua. Open Access Frontiers in Physiology, 7 (Art. Nr. 198). DOI 10.3389/fphys.2016.00198 <https://doi.org/10.3389/fphys.2016.00198>. doi:10.3389/fphys.2016.00198 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3389/fphys.2016.00198 |
container_title |
Frontiers in Physiology |
container_volume |
7 |
_version_ |
1766357753654149120 |