Elevated seawater pCO2 differentially affects branchial acid-base transporters over the course of development in the cephalopod Sepia officinalis
The specific transporters involved in maintenance of blood pH homeostasis in cephalopod molluscs have not been identified to date. Using in situ hybridization and immuno histochemical methods, we demonstrate that Na+/K+-ATPase (soNKA), a V-type H+-ATPase (soV-HA), and Na+/HCO3- cotransporter (soNBC)...
Published in: | American Journal of Physiology-Regulatory, Integrative and Comparative Physiology |
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Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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American Physiological Society, APS
2011
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Online Access: | https://oceanrep.geomar.de/id/eprint/12758/ https://oceanrep.geomar.de/id/eprint/12758/1/Elevated.pdf https://oceanrep.geomar.de/id/eprint/12758/2/Correction_Elevated.pdf https://doi.org/10.1152/ajpregu.00653.2010 |
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ftoceanrep:oai:oceanrep.geomar.de:12758 2023-05-15T17:51:42+02:00 Elevated seawater pCO2 differentially affects branchial acid-base transporters over the course of development in the cephalopod Sepia officinalis Hu, Marian Yong-An Tseng, Yung-Che Stumpp, Meike Gutowska, Magdalena Kiko, Rainer Lucassen, Magnus Melzner, Frank 2011 text https://oceanrep.geomar.de/id/eprint/12758/ https://oceanrep.geomar.de/id/eprint/12758/1/Elevated.pdf https://oceanrep.geomar.de/id/eprint/12758/2/Correction_Elevated.pdf https://doi.org/10.1152/ajpregu.00653.2010 en eng American Physiological Society, APS https://oceanrep.geomar.de/id/eprint/12758/1/Elevated.pdf https://oceanrep.geomar.de/id/eprint/12758/2/Correction_Elevated.pdf Hu, M. Y. A., Tseng, Y. C., Stumpp, M., Gutowska, M., Kiko, R. , Lucassen, M. and Melzner, F. (2011) Elevated seawater pCO2 differentially affects branchial acid-base transporters over the course of development in the cephalopod Sepia officinalis . American Journal of Physiology: Regulatory, Integrative and Comparative Physiology, 300 . pp. 1100-1114. DOI 10.1152/ajpregu.00653.2010 <https://doi.org/10.1152/ajpregu.00653.2010>. doi:10.1152/ajpregu.00653.2010 cc_by_3.0 info:eu-repo/semantics/embargoedAccess Article PeerReviewed 2011 ftoceanrep https://doi.org/10.1152/ajpregu.00653.2010 2023-04-07T15:01:14Z The specific transporters involved in maintenance of blood pH homeostasis in cephalopod molluscs have not been identified to date. Using in situ hybridization and immuno histochemical methods, we demonstrate that Na+/K+-ATPase (soNKA), a V-type H+-ATPase (soV-HA), and Na+/HCO3- cotransporter (soNBC) are co-localized in NKA-rich cells in the gills of Sepia officinalis. mRNA expression patterns of these transporters and selected metabolic genes were examined in response to moderately elevated seawater pCO2 (0.16 and 0.35 kPa) over a time-course of six weeks in different ontogenetic stages. The applied CO2 concentrations are relevant for ocean acidification scenarios projected for the coming decades. We determined strong expression changes in late stage embryos and hatchlings, with one to three log2-fold reductions in soNKA, soNBCe, socCAII and COX. In contrast, no hypercapnia induced changes in mRNA expression were observed in juveniles during both short- and long-term exposure. However a transiently increased demand of ion regulatory demand was evident during the initial acclimation reaction to elevated seawater pCO2. Gill Na+/K+-ATPase activity and protein concentration were increased by approximately 15% in during short (2-11 day), but not long term (42 day) exposure. Our findings support the hypothesis that the energy budget of adult cephalopods is not significantly compromised during long-term exposure to moderate environmental hypercapnia. However, the down regulation of ion-regulatory and metabolic genes in late stage embryos, taken together with a significant reduction in somatic growth, indicates that cephalopod early life stages are challenged by elevated seawater pCO2. Article in Journal/Newspaper Ocean acidification OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Sonka ENVELOPE(25.252,25.252,66.630,66.630) American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 300 5 R1100 R1114 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
The specific transporters involved in maintenance of blood pH homeostasis in cephalopod molluscs have not been identified to date. Using in situ hybridization and immuno histochemical methods, we demonstrate that Na+/K+-ATPase (soNKA), a V-type H+-ATPase (soV-HA), and Na+/HCO3- cotransporter (soNBC) are co-localized in NKA-rich cells in the gills of Sepia officinalis. mRNA expression patterns of these transporters and selected metabolic genes were examined in response to moderately elevated seawater pCO2 (0.16 and 0.35 kPa) over a time-course of six weeks in different ontogenetic stages. The applied CO2 concentrations are relevant for ocean acidification scenarios projected for the coming decades. We determined strong expression changes in late stage embryos and hatchlings, with one to three log2-fold reductions in soNKA, soNBCe, socCAII and COX. In contrast, no hypercapnia induced changes in mRNA expression were observed in juveniles during both short- and long-term exposure. However a transiently increased demand of ion regulatory demand was evident during the initial acclimation reaction to elevated seawater pCO2. Gill Na+/K+-ATPase activity and protein concentration were increased by approximately 15% in during short (2-11 day), but not long term (42 day) exposure. Our findings support the hypothesis that the energy budget of adult cephalopods is not significantly compromised during long-term exposure to moderate environmental hypercapnia. However, the down regulation of ion-regulatory and metabolic genes in late stage embryos, taken together with a significant reduction in somatic growth, indicates that cephalopod early life stages are challenged by elevated seawater pCO2. |
format |
Article in Journal/Newspaper |
author |
Hu, Marian Yong-An Tseng, Yung-Che Stumpp, Meike Gutowska, Magdalena Kiko, Rainer Lucassen, Magnus Melzner, Frank |
spellingShingle |
Hu, Marian Yong-An Tseng, Yung-Che Stumpp, Meike Gutowska, Magdalena Kiko, Rainer Lucassen, Magnus Melzner, Frank Elevated seawater pCO2 differentially affects branchial acid-base transporters over the course of development in the cephalopod Sepia officinalis |
author_facet |
Hu, Marian Yong-An Tseng, Yung-Che Stumpp, Meike Gutowska, Magdalena Kiko, Rainer Lucassen, Magnus Melzner, Frank |
author_sort |
Hu, Marian Yong-An |
title |
Elevated seawater pCO2 differentially affects branchial acid-base transporters over the course of development in the cephalopod Sepia officinalis |
title_short |
Elevated seawater pCO2 differentially affects branchial acid-base transporters over the course of development in the cephalopod Sepia officinalis |
title_full |
Elevated seawater pCO2 differentially affects branchial acid-base transporters over the course of development in the cephalopod Sepia officinalis |
title_fullStr |
Elevated seawater pCO2 differentially affects branchial acid-base transporters over the course of development in the cephalopod Sepia officinalis |
title_full_unstemmed |
Elevated seawater pCO2 differentially affects branchial acid-base transporters over the course of development in the cephalopod Sepia officinalis |
title_sort |
elevated seawater pco2 differentially affects branchial acid-base transporters over the course of development in the cephalopod sepia officinalis |
publisher |
American Physiological Society, APS |
publishDate |
2011 |
url |
https://oceanrep.geomar.de/id/eprint/12758/ https://oceanrep.geomar.de/id/eprint/12758/1/Elevated.pdf https://oceanrep.geomar.de/id/eprint/12758/2/Correction_Elevated.pdf https://doi.org/10.1152/ajpregu.00653.2010 |
long_lat |
ENVELOPE(25.252,25.252,66.630,66.630) |
geographic |
Sonka |
geographic_facet |
Sonka |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://oceanrep.geomar.de/id/eprint/12758/1/Elevated.pdf https://oceanrep.geomar.de/id/eprint/12758/2/Correction_Elevated.pdf Hu, M. Y. A., Tseng, Y. C., Stumpp, M., Gutowska, M., Kiko, R. , Lucassen, M. and Melzner, F. (2011) Elevated seawater pCO2 differentially affects branchial acid-base transporters over the course of development in the cephalopod Sepia officinalis . American Journal of Physiology: Regulatory, Integrative and Comparative Physiology, 300 . pp. 1100-1114. DOI 10.1152/ajpregu.00653.2010 <https://doi.org/10.1152/ajpregu.00653.2010>. doi:10.1152/ajpregu.00653.2010 |
op_rights |
cc_by_3.0 info:eu-repo/semantics/embargoedAccess |
op_doi |
https://doi.org/10.1152/ajpregu.00653.2010 |
container_title |
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology |
container_volume |
300 |
container_issue |
5 |
container_start_page |
R1100 |
op_container_end_page |
R1114 |
_version_ |
1766158935878795264 |