Physiological plasticity, long term resistance or acclimation to temperature, in the Antarctic bivalve, Laternula elliptica
To further investigate the previously reported limited acclimation capacities of Antarctic marine stenotherms, the Antarctic mud clam, Laternula elliptica (King and Broderip, 1830–1831), was incubated at 3.0 °C for 89 days. The thermal windows of a suite of biochemical and physiological metrics that...
Published in: | Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology |
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Online Access: | http://nora.nerc.ac.uk/id/eprint/17357/ http://www.sciencedirect.com/science/article/pii/S1095643312000190 |
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ftnerc:oai:nora.nerc.ac.uk:17357 2023-05-15T13:45:12+02:00 Physiological plasticity, long term resistance or acclimation to temperature, in the Antarctic bivalve, Laternula elliptica Morley, Simon Hirse, Timo Thorne, Michael Pörtner, Hans O. Peck, Lloyd 2012 http://nora.nerc.ac.uk/id/eprint/17357/ http://www.sciencedirect.com/science/article/pii/S1095643312000190 unknown Elsevier Morley, Simon orcid:0000-0002-7761-660X Hirse, Timo; Thorne, Michael orcid:0000-0001-7759-612X Pörtner, Hans O.; Peck, Lloyd orcid:0000-0003-3479-6791 . 2012 Physiological plasticity, long term resistance or acclimation to temperature, in the Antarctic bivalve, Laternula elliptica. Comparative Biochemistry and Physiology - Part A: Molecular & Integrative Physiology, 162 (1). 16-21. https://doi.org/10.1016/j.cbpa.2012.01.009 <https://doi.org/10.1016/j.cbpa.2012.01.009> Publication - Article PeerReviewed 2012 ftnerc 2023-02-04T19:31:05Z To further investigate the previously reported limited acclimation capacities of Antarctic marine stenotherms, the Antarctic mud clam, Laternula elliptica (King and Broderip, 1830–1831), was incubated at 3.0 °C for 89 days. The thermal windows of a suite of biochemical and physiological metrics that characterise tissue aerobic status, were then measured in response to acute temperature elevation (2–2.5 °C increase per week). To test if acclimation had occurred at the higher temperature, results were compared with published data, from the preceding year, for L. elliptica which had been incubated at ambient temperature (0.0 °C) and then subjected to the same acute temperature treatments. Incubation to 3.0 °C led to a temperature induced increase of tissue aerobic status (reduced intracellular cCO2 with increased O2 consumption, PLA (phospho-L-arginine) and ATP). At the highest acute temperature (7.5 °C) the increase in anaerobic pathways (summed acetate/succinate and propionate) was less after 3.0 °C than 0.0 °C incubation. No other metric shifted its reaction norm in response to acute temperature elevation and so whole animal acclimation had not occurred, even after 3 months at 3.0 °C. Combined with the constant mortality throughout the 3.0 °C incubation period, these data suggest that the recorded physiological changes were either the early stages of acclimation or, more likely, time limited resistance mechanisms. Article in Journal/Newspaper Antarc* Antarctic Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology 162 1 16 21 |
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Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
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description |
To further investigate the previously reported limited acclimation capacities of Antarctic marine stenotherms, the Antarctic mud clam, Laternula elliptica (King and Broderip, 1830–1831), was incubated at 3.0 °C for 89 days. The thermal windows of a suite of biochemical and physiological metrics that characterise tissue aerobic status, were then measured in response to acute temperature elevation (2–2.5 °C increase per week). To test if acclimation had occurred at the higher temperature, results were compared with published data, from the preceding year, for L. elliptica which had been incubated at ambient temperature (0.0 °C) and then subjected to the same acute temperature treatments. Incubation to 3.0 °C led to a temperature induced increase of tissue aerobic status (reduced intracellular cCO2 with increased O2 consumption, PLA (phospho-L-arginine) and ATP). At the highest acute temperature (7.5 °C) the increase in anaerobic pathways (summed acetate/succinate and propionate) was less after 3.0 °C than 0.0 °C incubation. No other metric shifted its reaction norm in response to acute temperature elevation and so whole animal acclimation had not occurred, even after 3 months at 3.0 °C. Combined with the constant mortality throughout the 3.0 °C incubation period, these data suggest that the recorded physiological changes were either the early stages of acclimation or, more likely, time limited resistance mechanisms. |
format |
Article in Journal/Newspaper |
author |
Morley, Simon Hirse, Timo Thorne, Michael Pörtner, Hans O. Peck, Lloyd |
spellingShingle |
Morley, Simon Hirse, Timo Thorne, Michael Pörtner, Hans O. Peck, Lloyd Physiological plasticity, long term resistance or acclimation to temperature, in the Antarctic bivalve, Laternula elliptica |
author_facet |
Morley, Simon Hirse, Timo Thorne, Michael Pörtner, Hans O. Peck, Lloyd |
author_sort |
Morley, Simon |
title |
Physiological plasticity, long term resistance or acclimation to temperature, in the Antarctic bivalve, Laternula elliptica |
title_short |
Physiological plasticity, long term resistance or acclimation to temperature, in the Antarctic bivalve, Laternula elliptica |
title_full |
Physiological plasticity, long term resistance or acclimation to temperature, in the Antarctic bivalve, Laternula elliptica |
title_fullStr |
Physiological plasticity, long term resistance or acclimation to temperature, in the Antarctic bivalve, Laternula elliptica |
title_full_unstemmed |
Physiological plasticity, long term resistance or acclimation to temperature, in the Antarctic bivalve, Laternula elliptica |
title_sort |
physiological plasticity, long term resistance or acclimation to temperature, in the antarctic bivalve, laternula elliptica |
publisher |
Elsevier |
publishDate |
2012 |
url |
http://nora.nerc.ac.uk/id/eprint/17357/ http://www.sciencedirect.com/science/article/pii/S1095643312000190 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
Morley, Simon orcid:0000-0002-7761-660X Hirse, Timo; Thorne, Michael orcid:0000-0001-7759-612X Pörtner, Hans O.; Peck, Lloyd orcid:0000-0003-3479-6791 . 2012 Physiological plasticity, long term resistance or acclimation to temperature, in the Antarctic bivalve, Laternula elliptica. Comparative Biochemistry and Physiology - Part A: Molecular & Integrative Physiology, 162 (1). 16-21. https://doi.org/10.1016/j.cbpa.2012.01.009 <https://doi.org/10.1016/j.cbpa.2012.01.009> |
container_title |
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology |
container_volume |
162 |
container_issue |
1 |
container_start_page |
16 |
op_container_end_page |
21 |
_version_ |
1766216263084802048 |