Photoacclimation and photoregulation strategies of Corallina (Corallinales, Rhodophyta) across the NE Atlantic
This study characterizes the photoacclimation and photoregulation mechanisms that allow calcified macroalgae of the genus Corallina (Corallinales, Rhodophyta) to dominate rock pool habitats across the NE Atlantic despite the highly variable irradiance regimes experienced. Rapid light curves (RLCs) w...
Published in: | European Journal of Phycology |
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Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2018
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Online Access: | https://hdl.handle.net/1983/3fef937c-5bbc-4283-8184-6f5ff6fb2e73 https://research-information.bris.ac.uk/en/publications/3fef937c-5bbc-4283-8184-6f5ff6fb2e73 https://doi.org/10.1080/09670262.2018.1442586 https://research-information.bris.ac.uk/ws/files/161681378/Photoacclimation_and_photoregulation_strategies_of_Corallina_Corallinales_Rhodophyta_across_the_NE_Atlantic.pdf http://www.scopus.com/inward/record.url?scp=85047159585&partnerID=8YFLogxK |
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ftubristolcris:oai:research-information.bris.ac.uk:publications/3fef937c-5bbc-4283-8184-6f5ff6fb2e73 2024-01-28T10:06:46+01:00 Photoacclimation and photoregulation strategies of Corallina (Corallinales, Rhodophyta) across the NE Atlantic Williamson, Christopher J. Perkins, Rupert Yallop, Marian L. Peteiro, César S. Sanchez, Noemí Gunnarsson, Karl Gamble, Maggie Brodie, Juliet 2018-05-17 application/pdf https://hdl.handle.net/1983/3fef937c-5bbc-4283-8184-6f5ff6fb2e73 https://research-information.bris.ac.uk/en/publications/3fef937c-5bbc-4283-8184-6f5ff6fb2e73 https://doi.org/10.1080/09670262.2018.1442586 https://research-information.bris.ac.uk/ws/files/161681378/Photoacclimation_and_photoregulation_strategies_of_Corallina_Corallinales_Rhodophyta_across_the_NE_Atlantic.pdf http://www.scopus.com/inward/record.url?scp=85047159585&partnerID=8YFLogxK eng eng info:eu-repo/semantics/openAccess Williamson , C J , Perkins , R , Yallop , M L , Peteiro , C S , Sanchez , N , Gunnarsson , K , Gamble , M & Brodie , J 2018 , ' Photoacclimation and photoregulation strategies of Corallina (Corallinales, Rhodophyta) across the NE Atlantic ' , European Journal of Phycology . https://doi.org/10.1080/09670262.2018.1442586 article 2018 ftubristolcris https://doi.org/10.1080/09670262.2018.1442586 2024-01-04T23:56:40Z This study characterizes the photoacclimation and photoregulation mechanisms that allow calcified macroalgae of the genus Corallina (Corallinales, Rhodophyta) to dominate rock pool habitats across the NE Atlantic despite the highly variable irradiance regimes experienced. Rapid light curves (RLCs) were performed with pulse amplitude modulation (PAM) fluorometry in situ across a full seasonal cycle in the UK intertidal with C. officinalis and C. caespitosa. Latitudinal comparisons were performed across the full extent of C. officinalis’ range in the NE Atlantic (Iceland–northern Spain), and for C. caespitosa in northern Spain. Ex situ RLCs with dark recovery were further employed to assess the optimal, as compared with actual, photophysiology across seasons and latitudes. Corallina species were shown to photoacclimate at seasonal timescales to changing irradiance, increasing light-harvesting during low-light autumn/winter periods and protecting photosystems during high-light summer conditions. Seasonal photoacclimation was achieved through alteration in the number of photosystem (PS) units (PSII and light harvesting antennae) over time. Non-photochemical quenching (NPQ) served as an important photoregulation mechanism utilized by Corallina to prevent or minimize photoinhibition over shorter time scales (seconds–hours), though the efficiency of NPQ was dependent on the seasonal-acclimated state. With increasing latitude the efficiency of photoregulation decreased, representing potential differential photoadaptation of Corallina across species ranges in the NE Atlantic. In contrast, highly conserved inter-specific patterns in photophysiological responses to irradiance were apparent. This study demonstrates the photophysiological mechanisms allowing Corallina to optimize use of the variable irradiance conditions apparent in rock pool environments, when and how they are employed, and their limitations. Article in Journal/Newspaper Iceland University of Bristol: Bristol Research European Journal of Phycology 53 3 290 306 |
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Open Polar |
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University of Bristol: Bristol Research |
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ftubristolcris |
language |
English |
description |
This study characterizes the photoacclimation and photoregulation mechanisms that allow calcified macroalgae of the genus Corallina (Corallinales, Rhodophyta) to dominate rock pool habitats across the NE Atlantic despite the highly variable irradiance regimes experienced. Rapid light curves (RLCs) were performed with pulse amplitude modulation (PAM) fluorometry in situ across a full seasonal cycle in the UK intertidal with C. officinalis and C. caespitosa. Latitudinal comparisons were performed across the full extent of C. officinalis’ range in the NE Atlantic (Iceland–northern Spain), and for C. caespitosa in northern Spain. Ex situ RLCs with dark recovery were further employed to assess the optimal, as compared with actual, photophysiology across seasons and latitudes. Corallina species were shown to photoacclimate at seasonal timescales to changing irradiance, increasing light-harvesting during low-light autumn/winter periods and protecting photosystems during high-light summer conditions. Seasonal photoacclimation was achieved through alteration in the number of photosystem (PS) units (PSII and light harvesting antennae) over time. Non-photochemical quenching (NPQ) served as an important photoregulation mechanism utilized by Corallina to prevent or minimize photoinhibition over shorter time scales (seconds–hours), though the efficiency of NPQ was dependent on the seasonal-acclimated state. With increasing latitude the efficiency of photoregulation decreased, representing potential differential photoadaptation of Corallina across species ranges in the NE Atlantic. In contrast, highly conserved inter-specific patterns in photophysiological responses to irradiance were apparent. This study demonstrates the photophysiological mechanisms allowing Corallina to optimize use of the variable irradiance conditions apparent in rock pool environments, when and how they are employed, and their limitations. |
format |
Article in Journal/Newspaper |
author |
Williamson, Christopher J. Perkins, Rupert Yallop, Marian L. Peteiro, César S. Sanchez, Noemí Gunnarsson, Karl Gamble, Maggie Brodie, Juliet |
spellingShingle |
Williamson, Christopher J. Perkins, Rupert Yallop, Marian L. Peteiro, César S. Sanchez, Noemí Gunnarsson, Karl Gamble, Maggie Brodie, Juliet Photoacclimation and photoregulation strategies of Corallina (Corallinales, Rhodophyta) across the NE Atlantic |
author_facet |
Williamson, Christopher J. Perkins, Rupert Yallop, Marian L. Peteiro, César S. Sanchez, Noemí Gunnarsson, Karl Gamble, Maggie Brodie, Juliet |
author_sort |
Williamson, Christopher J. |
title |
Photoacclimation and photoregulation strategies of Corallina (Corallinales, Rhodophyta) across the NE Atlantic |
title_short |
Photoacclimation and photoregulation strategies of Corallina (Corallinales, Rhodophyta) across the NE Atlantic |
title_full |
Photoacclimation and photoregulation strategies of Corallina (Corallinales, Rhodophyta) across the NE Atlantic |
title_fullStr |
Photoacclimation and photoregulation strategies of Corallina (Corallinales, Rhodophyta) across the NE Atlantic |
title_full_unstemmed |
Photoacclimation and photoregulation strategies of Corallina (Corallinales, Rhodophyta) across the NE Atlantic |
title_sort |
photoacclimation and photoregulation strategies of corallina (corallinales, rhodophyta) across the ne atlantic |
publishDate |
2018 |
url |
https://hdl.handle.net/1983/3fef937c-5bbc-4283-8184-6f5ff6fb2e73 https://research-information.bris.ac.uk/en/publications/3fef937c-5bbc-4283-8184-6f5ff6fb2e73 https://doi.org/10.1080/09670262.2018.1442586 https://research-information.bris.ac.uk/ws/files/161681378/Photoacclimation_and_photoregulation_strategies_of_Corallina_Corallinales_Rhodophyta_across_the_NE_Atlantic.pdf http://www.scopus.com/inward/record.url?scp=85047159585&partnerID=8YFLogxK |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Williamson , C J , Perkins , R , Yallop , M L , Peteiro , C S , Sanchez , N , Gunnarsson , K , Gamble , M & Brodie , J 2018 , ' Photoacclimation and photoregulation strategies of Corallina (Corallinales, Rhodophyta) across the NE Atlantic ' , European Journal of Phycology . https://doi.org/10.1080/09670262.2018.1442586 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1080/09670262.2018.1442586 |
container_title |
European Journal of Phycology |
container_volume |
53 |
container_issue |
3 |
container_start_page |
290 |
op_container_end_page |
306 |
_version_ |
1789333880956780544 |