Adaptation of Temperate Seagrass to Arctic Light Relies on Seasonal Acclimatization of Carbon Capture and Metabolism
Due to rising global surface temperatures, Arctic habitats are becoming thermally suitable for temperate species. Whether a temperate species can immigrate into an ice-free Arctic depends on its ability to tolerate extreme seasonal fluctuations in daylength. Thus, understanding adaptations to polar...
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ftpubmed:oai:pubmedcentral.nih.gov:8675887 2023-05-15T14:37:37+02:00 Adaptation of Temperate Seagrass to Arctic Light Relies on Seasonal Acclimatization of Carbon Capture and Metabolism Jueterbock, Alexander Duarte, Bernardo Coyer, James Olsen, Jeanine L. Kopp, Martina Elisabeth Luise Smolina, Irina Arnaud-Haond, Sophie Hu, Zi-Min Hoarau, Galice 2021-12-02 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8675887/ https://doi.org/10.3389/fpls.2021.745855 en eng Frontiers Media S.A. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8675887/ http://dx.doi.org/10.3389/fpls.2021.745855 Copyright © 2021 Jueterbock, Duarte, Coyer, Olsen, Kopp, Smolina, Arnaud-Haond, Hu and Hoarau. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. CC-BY Front Plant Sci Plant Science Text 2021 ftpubmed https://doi.org/10.3389/fpls.2021.745855 2021-12-19T01:58:19Z Due to rising global surface temperatures, Arctic habitats are becoming thermally suitable for temperate species. Whether a temperate species can immigrate into an ice-free Arctic depends on its ability to tolerate extreme seasonal fluctuations in daylength. Thus, understanding adaptations to polar light conditions can improve the realism of models predicting poleward range expansions in response to climate change. Plant adaptations to polar light have rarely been studied and remain unknown in seagrasses. If these ecosystem engineers can migrate polewards, seagrasses will enrich biodiversity, and carbon capture potential in shallow coastal regions of the Arctic. Eelgrass (Zostera marina) is the most widely distributed seagrass in the northern hemisphere. As the only seagrass species growing as far north as 70°N, it is the most likely candidate to first immigrate into an ice-free Arctic. Here, we describe seasonal (and diurnal) changes in photosynthetic characteristics, and in genome-wide gene expression patterns under strong annual fluctuations of daylength. We compared PAM measurements and RNA-seq data between two populations at the longest and shortest day of the year: (1) a Mediterranean population exposed to moderate annual fluctuations of 10–14 h daylength and (2) an Arctic population exposed to high annual fluctuations of 0–24 h daylength. Most of the gene expression specificities of the Arctic population were found in functions of the organelles (chloroplast and mitochondrion). In winter, Arctic eelgrass conserves energy by repressing respiration and reducing photosynthetic energy fluxes. Although light-reactions, and genes involved in carbon capture and carbon storage were upregulated in summer, enzymes involved in CO(2) fixation and chlorophyll-synthesis were upregulated in winter, suggesting that winter metabolism relies not only on stored energy resources but also on active use of dim light conditions. Eelgrass is unable to use excessive amounts of light during summer and demonstrates a significant ... Text Arctic Arctic Population Climate change PubMed Central (PMC) Arctic Frontiers in Plant Science 12 |
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PubMed Central (PMC) |
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ftpubmed |
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Plant Science |
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Plant Science Jueterbock, Alexander Duarte, Bernardo Coyer, James Olsen, Jeanine L. Kopp, Martina Elisabeth Luise Smolina, Irina Arnaud-Haond, Sophie Hu, Zi-Min Hoarau, Galice Adaptation of Temperate Seagrass to Arctic Light Relies on Seasonal Acclimatization of Carbon Capture and Metabolism |
topic_facet |
Plant Science |
description |
Due to rising global surface temperatures, Arctic habitats are becoming thermally suitable for temperate species. Whether a temperate species can immigrate into an ice-free Arctic depends on its ability to tolerate extreme seasonal fluctuations in daylength. Thus, understanding adaptations to polar light conditions can improve the realism of models predicting poleward range expansions in response to climate change. Plant adaptations to polar light have rarely been studied and remain unknown in seagrasses. If these ecosystem engineers can migrate polewards, seagrasses will enrich biodiversity, and carbon capture potential in shallow coastal regions of the Arctic. Eelgrass (Zostera marina) is the most widely distributed seagrass in the northern hemisphere. As the only seagrass species growing as far north as 70°N, it is the most likely candidate to first immigrate into an ice-free Arctic. Here, we describe seasonal (and diurnal) changes in photosynthetic characteristics, and in genome-wide gene expression patterns under strong annual fluctuations of daylength. We compared PAM measurements and RNA-seq data between two populations at the longest and shortest day of the year: (1) a Mediterranean population exposed to moderate annual fluctuations of 10–14 h daylength and (2) an Arctic population exposed to high annual fluctuations of 0–24 h daylength. Most of the gene expression specificities of the Arctic population were found in functions of the organelles (chloroplast and mitochondrion). In winter, Arctic eelgrass conserves energy by repressing respiration and reducing photosynthetic energy fluxes. Although light-reactions, and genes involved in carbon capture and carbon storage were upregulated in summer, enzymes involved in CO(2) fixation and chlorophyll-synthesis were upregulated in winter, suggesting that winter metabolism relies not only on stored energy resources but also on active use of dim light conditions. Eelgrass is unable to use excessive amounts of light during summer and demonstrates a significant ... |
format |
Text |
author |
Jueterbock, Alexander Duarte, Bernardo Coyer, James Olsen, Jeanine L. Kopp, Martina Elisabeth Luise Smolina, Irina Arnaud-Haond, Sophie Hu, Zi-Min Hoarau, Galice |
author_facet |
Jueterbock, Alexander Duarte, Bernardo Coyer, James Olsen, Jeanine L. Kopp, Martina Elisabeth Luise Smolina, Irina Arnaud-Haond, Sophie Hu, Zi-Min Hoarau, Galice |
author_sort |
Jueterbock, Alexander |
title |
Adaptation of Temperate Seagrass to Arctic Light Relies on Seasonal Acclimatization of Carbon Capture and Metabolism |
title_short |
Adaptation of Temperate Seagrass to Arctic Light Relies on Seasonal Acclimatization of Carbon Capture and Metabolism |
title_full |
Adaptation of Temperate Seagrass to Arctic Light Relies on Seasonal Acclimatization of Carbon Capture and Metabolism |
title_fullStr |
Adaptation of Temperate Seagrass to Arctic Light Relies on Seasonal Acclimatization of Carbon Capture and Metabolism |
title_full_unstemmed |
Adaptation of Temperate Seagrass to Arctic Light Relies on Seasonal Acclimatization of Carbon Capture and Metabolism |
title_sort |
adaptation of temperate seagrass to arctic light relies on seasonal acclimatization of carbon capture and metabolism |
publisher |
Frontiers Media S.A. |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8675887/ https://doi.org/10.3389/fpls.2021.745855 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Population Climate change |
genre_facet |
Arctic Arctic Population Climate change |
op_source |
Front Plant Sci |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8675887/ http://dx.doi.org/10.3389/fpls.2021.745855 |
op_rights |
Copyright © 2021 Jueterbock, Duarte, Coyer, Olsen, Kopp, Smolina, Arnaud-Haond, Hu and Hoarau. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fpls.2021.745855 |
container_title |
Frontiers in Plant Science |
container_volume |
12 |
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1766309846324346880 |