Catecholamine release in heat-stressed Antarctic fish causes proton extrusion by the red cells
Two species of Antarctic fish were stressed by moving them from seawater at -1 degrees C to seawater at 10 degrees C and holding them for a period of 10 min. The active cryopelagic species Pagothenia borchgrevinki maintained heart rate while in the benthic species Trematomus bernacchii there was an...
Published in: | Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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SPRINGER VERLAG
1998
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ftunivqespace:oai:espace.library.uq.edu.au:UQ:35002 2023-05-15T13:58:58+02:00 Catecholamine release in heat-stressed Antarctic fish causes proton extrusion by the red cells Forster, ME Davison, W Axelsson, M Sundin, L Franklin, CE Gieseg, S 1998-01-01 https://espace.library.uq.edu.au/view/UQ:35002 eng eng SPRINGER VERLAG doi:10.1007/s003600050153 issn:0174-1578 orcid:0000-0003-1315-3797 Physiology Zoology Antarctic Catecholamines Nototheniid Red Cell Swelling Stress Blood-pressure Control Rainbow-trout Pagothenia-borchgrevinki Cardiovascular-responses Trematomus-bernacchii Swimming Performance Oncorhynchus-mykiss Na+/h+ Exchange Atlantic Cod Gadus-morhua Journal Article 1998 ftunivqespace https://doi.org/10.1007/s003600050153 2020-08-24T22:27:15Z Two species of Antarctic fish were stressed by moving them from seawater at -1 degrees C to seawater at 10 degrees C and holding them for a period of 10 min. The active cryopelagic species Pagothenia borchgrevinki maintained heart rate while in the benthic species Trematomus bernacchii there was an increase in heart rate. Blood pressure did not change in either species. Both species released catecholamines into the circulation as a consequence of the stress. P. borchgrevinki released the greater amounts, having mean plasma concentrations of 177 +/- 54 nmol.l(-1) noradrenaline and 263 +/- 131 nmol.l(-1) adrenaline at 10 min. Pla.sma noradrenaline concentrations rose to 47 +/- 14 nmol.l(-1) and adrenaline to 73 +/- 28 nmol.l(-1) in T. bernacchii. Blood from P. borchgrevinki was tonometered in the presence of isoprenaline. A fall in extracellular pH suggests the presence of a Na+/H+ antiporter on the red cell membrane, the first demonstration of this in an Antarctic fish. Treatment with the beta-adrenergic antagonist drug sotalol inhibited swelling of red blood cells taken from temperature-stressed P. borchgrevinki, suggesting that the antiporter responds to endogenous catecholamines. Article in Journal/Newspaper Antarc* Antarctic atlantic cod Gadus morhua The University of Queensland: UQ eSpace Antarctic Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology 168 5 345 352 |
institution |
Open Polar |
collection |
The University of Queensland: UQ eSpace |
op_collection_id |
ftunivqespace |
language |
English |
topic |
Physiology Zoology Antarctic Catecholamines Nototheniid Red Cell Swelling Stress Blood-pressure Control Rainbow-trout Pagothenia-borchgrevinki Cardiovascular-responses Trematomus-bernacchii Swimming Performance Oncorhynchus-mykiss Na+/h+ Exchange Atlantic Cod Gadus-morhua |
spellingShingle |
Physiology Zoology Antarctic Catecholamines Nototheniid Red Cell Swelling Stress Blood-pressure Control Rainbow-trout Pagothenia-borchgrevinki Cardiovascular-responses Trematomus-bernacchii Swimming Performance Oncorhynchus-mykiss Na+/h+ Exchange Atlantic Cod Gadus-morhua Forster, ME Davison, W Axelsson, M Sundin, L Franklin, CE Gieseg, S Catecholamine release in heat-stressed Antarctic fish causes proton extrusion by the red cells |
topic_facet |
Physiology Zoology Antarctic Catecholamines Nototheniid Red Cell Swelling Stress Blood-pressure Control Rainbow-trout Pagothenia-borchgrevinki Cardiovascular-responses Trematomus-bernacchii Swimming Performance Oncorhynchus-mykiss Na+/h+ Exchange Atlantic Cod Gadus-morhua |
description |
Two species of Antarctic fish were stressed by moving them from seawater at -1 degrees C to seawater at 10 degrees C and holding them for a period of 10 min. The active cryopelagic species Pagothenia borchgrevinki maintained heart rate while in the benthic species Trematomus bernacchii there was an increase in heart rate. Blood pressure did not change in either species. Both species released catecholamines into the circulation as a consequence of the stress. P. borchgrevinki released the greater amounts, having mean plasma concentrations of 177 +/- 54 nmol.l(-1) noradrenaline and 263 +/- 131 nmol.l(-1) adrenaline at 10 min. Pla.sma noradrenaline concentrations rose to 47 +/- 14 nmol.l(-1) and adrenaline to 73 +/- 28 nmol.l(-1) in T. bernacchii. Blood from P. borchgrevinki was tonometered in the presence of isoprenaline. A fall in extracellular pH suggests the presence of a Na+/H+ antiporter on the red cell membrane, the first demonstration of this in an Antarctic fish. Treatment with the beta-adrenergic antagonist drug sotalol inhibited swelling of red blood cells taken from temperature-stressed P. borchgrevinki, suggesting that the antiporter responds to endogenous catecholamines. |
format |
Article in Journal/Newspaper |
author |
Forster, ME Davison, W Axelsson, M Sundin, L Franklin, CE Gieseg, S |
author_facet |
Forster, ME Davison, W Axelsson, M Sundin, L Franklin, CE Gieseg, S |
author_sort |
Forster, ME |
title |
Catecholamine release in heat-stressed Antarctic fish causes proton extrusion by the red cells |
title_short |
Catecholamine release in heat-stressed Antarctic fish causes proton extrusion by the red cells |
title_full |
Catecholamine release in heat-stressed Antarctic fish causes proton extrusion by the red cells |
title_fullStr |
Catecholamine release in heat-stressed Antarctic fish causes proton extrusion by the red cells |
title_full_unstemmed |
Catecholamine release in heat-stressed Antarctic fish causes proton extrusion by the red cells |
title_sort |
catecholamine release in heat-stressed antarctic fish causes proton extrusion by the red cells |
publisher |
SPRINGER VERLAG |
publishDate |
1998 |
url |
https://espace.library.uq.edu.au/view/UQ:35002 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic atlantic cod Gadus morhua |
genre_facet |
Antarc* Antarctic atlantic cod Gadus morhua |
op_relation |
doi:10.1007/s003600050153 issn:0174-1578 orcid:0000-0003-1315-3797 |
op_doi |
https://doi.org/10.1007/s003600050153 |
container_title |
Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology |
container_volume |
168 |
container_issue |
5 |
container_start_page |
345 |
op_container_end_page |
352 |
_version_ |
1766267328829325312 |