Carbon dioxide induced plasticity of branchial acid-base pathways in an estuarine teleost
Anthropogenic CO2 is expected to drive ocean pCO2 above 1,000 μatm by 2100 – inducing respiratory acidosis in fish that must be corrected through branchial ion transport. This study examined the time course and plasticity of branchial metabolic compensation in response to varying levels of CO2 in an...
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ftpubmed:oai:pubmedcentral.nih.gov:5381225 2023-05-15T18:06:04+02:00 Carbon dioxide induced plasticity of branchial acid-base pathways in an estuarine teleost Allmon, Elizabeth B. Esbaugh, Andrew J. 2017-04-05 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5381225/ http://www.ncbi.nlm.nih.gov/pubmed/28378831 https://doi.org/10.1038/srep45680 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5381225/ http://www.ncbi.nlm.nih.gov/pubmed/28378831 http://dx.doi.org/10.1038/srep45680 Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ CC-BY Article Text 2017 ftpubmed https://doi.org/10.1038/srep45680 2017-04-16T00:10:13Z Anthropogenic CO2 is expected to drive ocean pCO2 above 1,000 μatm by 2100 – inducing respiratory acidosis in fish that must be corrected through branchial ion transport. This study examined the time course and plasticity of branchial metabolic compensation in response to varying levels of CO2 in an estuarine fish, the red drum, which regularly encounters elevated CO2 and may therefore have intrinsic resilience. Under control conditions fish exhibited net base excretion; however, CO2 exposure resulted in a dose dependent increase in acid excretion during the initial 2 h. This returned to baseline levels during the second 2 h interval for exposures up to 5,000 μatm, but remained elevated for exposures above 15,000 μatm. Plasticity was assessed via gene expression in three CO2 treatments: environmentally realistic 1,000 and 6,000 μatm exposures, and a proof-of-principle 30,000 μatm exposure. Few differences were observed at 1,000 or 6,000 μatm; however, 30,000 μatm stimulated widespread up-regulation. Translocation of V-type ATPase after 1 h of exposure to 30,000 μatm was also assessed; however, no evidence of translocation was found. These results indicate that red drum can quickly compensate to environmentally relevant acid-base disturbances using baseline cellular machinery, yet are capable of plasticity in response to extreme acid-base challenges. Text Red drum PubMed Central (PMC) Scientific Reports 7 1 |
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Article Allmon, Elizabeth B. Esbaugh, Andrew J. Carbon dioxide induced plasticity of branchial acid-base pathways in an estuarine teleost |
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Article |
description |
Anthropogenic CO2 is expected to drive ocean pCO2 above 1,000 μatm by 2100 – inducing respiratory acidosis in fish that must be corrected through branchial ion transport. This study examined the time course and plasticity of branchial metabolic compensation in response to varying levels of CO2 in an estuarine fish, the red drum, which regularly encounters elevated CO2 and may therefore have intrinsic resilience. Under control conditions fish exhibited net base excretion; however, CO2 exposure resulted in a dose dependent increase in acid excretion during the initial 2 h. This returned to baseline levels during the second 2 h interval for exposures up to 5,000 μatm, but remained elevated for exposures above 15,000 μatm. Plasticity was assessed via gene expression in three CO2 treatments: environmentally realistic 1,000 and 6,000 μatm exposures, and a proof-of-principle 30,000 μatm exposure. Few differences were observed at 1,000 or 6,000 μatm; however, 30,000 μatm stimulated widespread up-regulation. Translocation of V-type ATPase after 1 h of exposure to 30,000 μatm was also assessed; however, no evidence of translocation was found. These results indicate that red drum can quickly compensate to environmentally relevant acid-base disturbances using baseline cellular machinery, yet are capable of plasticity in response to extreme acid-base challenges. |
format |
Text |
author |
Allmon, Elizabeth B. Esbaugh, Andrew J. |
author_facet |
Allmon, Elizabeth B. Esbaugh, Andrew J. |
author_sort |
Allmon, Elizabeth B. |
title |
Carbon dioxide induced plasticity of branchial acid-base pathways in an estuarine teleost |
title_short |
Carbon dioxide induced plasticity of branchial acid-base pathways in an estuarine teleost |
title_full |
Carbon dioxide induced plasticity of branchial acid-base pathways in an estuarine teleost |
title_fullStr |
Carbon dioxide induced plasticity of branchial acid-base pathways in an estuarine teleost |
title_full_unstemmed |
Carbon dioxide induced plasticity of branchial acid-base pathways in an estuarine teleost |
title_sort |
carbon dioxide induced plasticity of branchial acid-base pathways in an estuarine teleost |
publisher |
Nature Publishing Group |
publishDate |
2017 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5381225/ http://www.ncbi.nlm.nih.gov/pubmed/28378831 https://doi.org/10.1038/srep45680 |
genre |
Red drum |
genre_facet |
Red drum |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5381225/ http://www.ncbi.nlm.nih.gov/pubmed/28378831 http://dx.doi.org/10.1038/srep45680 |
op_rights |
Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
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CC-BY |
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https://doi.org/10.1038/srep45680 |
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