Impact of Ocean Carbonation on Long-Term Regulation of Light Harvesting in Eelgrass Zostera marina
Seagrasses account for approximately 10% of the total carbon stored in the ocean, although photosynthesis of seagrasses is carbon-limited at present oceanic pH levels. Therefore, increasing atmospheric CO2 concentration, which results in ocean acidification/carbonation, is predicted to have a positi...
Published in: | Marine Ecology Progress Series |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
ODU Digital Commons
2021
|
Subjects: | |
Online Access: | https://digitalcommons.odu.edu/oeas_fac_pubs/424 https://doi.org/10.3354/meps13777 https://digitalcommons.odu.edu/context/oeas_fac_pubs/article/1435/viewcontent/Zimmerman_2021_ImpactofOceanCarbonationonOCR.pdf |
id |
ftolddominionuni:oai:digitalcommons.odu.edu:oeas_fac_pubs-1435 |
---|---|
record_format |
openpolar |
spelling |
ftolddominionuni:oai:digitalcommons.odu.edu:oeas_fac_pubs-1435 2023-06-11T04:15:33+02:00 Impact of Ocean Carbonation on Long-Term Regulation of Light Harvesting in Eelgrass Zostera marina Celebi-Ergin, Billur Zimmerman, Richard C. Hill, Victoria J. 2021-01-01T08:00:00Z application/pdf https://digitalcommons.odu.edu/oeas_fac_pubs/424 https://doi.org/10.3354/meps13777 https://digitalcommons.odu.edu/context/oeas_fac_pubs/article/1435/viewcontent/Zimmerman_2021_ImpactofOceanCarbonationonOCR.pdf unknown ODU Digital Commons https://digitalcommons.odu.edu/oeas_fac_pubs/424 doi:10.3354/meps13777 https://digitalcommons.odu.edu/context/oeas_fac_pubs/article/1435/viewcontent/Zimmerman_2021_ImpactofOceanCarbonationonOCR.pdf Copyright © 2021 Inter-Research. Version of record under embargo until five years after publication. OES Faculty Publications Ocean acidification Photoprotection Photosynthesis Pigments Seagrass Temperature Light Marine Biology Oceanography Plant Sciences article 2021 ftolddominionuni https://doi.org/10.3354/meps13777 2023-05-08T18:03:14Z Seagrasses account for approximately 10% of the total carbon stored in the ocean, although photosynthesis of seagrasses is carbon-limited at present oceanic pH levels. Therefore, increasing atmospheric CO2 concentration, which results in ocean acidification/carbonation, is predicted to have a positive impact on seagrass productivity. Previous studies have confirmed the positive influence of increasing CO2 on photosynthesis and survival of the temperate eelgrass Zostera marina, but the acclimation of photoprotective mechanisms in this context has not been characterized. We aimed to quantify the long-term impacts of ocean acidification on photochemical control mechanisms that promote photosynthesis while simultaneously protecting eelgrass from photodamage. Eelgrass were grown in controlled outdoor aquaria at different aqueous CO2 concentrations ranging from ~50 to ~2100 μM from May 2013 to October 2014 and examined for differences in leaf optical properties. Even with daily and seasonal variations of temperature and light, CO2 enrichment consistently increased plant size, leaf thickness and chlorophyll use efficiency, and decreased pigment content and the package effect while maintaining similar light-harvesting efficiency. These acclimation responses suggest that a common photosynthetic sensory function, such as redox regulation, can be manipulated by CO2 availability, as well as light, and may serve to optimize photosynthetic carbon gain by seagrasses into the Anthropocene. Article in Journal/Newspaper Ocean acidification Old Dominion University: ODU Digital Commons Marine Ecology Progress Series 671 111 128 |
institution |
Open Polar |
collection |
Old Dominion University: ODU Digital Commons |
op_collection_id |
ftolddominionuni |
language |
unknown |
topic |
Ocean acidification Photoprotection Photosynthesis Pigments Seagrass Temperature Light Marine Biology Oceanography Plant Sciences |
spellingShingle |
Ocean acidification Photoprotection Photosynthesis Pigments Seagrass Temperature Light Marine Biology Oceanography Plant Sciences Celebi-Ergin, Billur Zimmerman, Richard C. Hill, Victoria J. Impact of Ocean Carbonation on Long-Term Regulation of Light Harvesting in Eelgrass Zostera marina |
topic_facet |
Ocean acidification Photoprotection Photosynthesis Pigments Seagrass Temperature Light Marine Biology Oceanography Plant Sciences |
description |
Seagrasses account for approximately 10% of the total carbon stored in the ocean, although photosynthesis of seagrasses is carbon-limited at present oceanic pH levels. Therefore, increasing atmospheric CO2 concentration, which results in ocean acidification/carbonation, is predicted to have a positive impact on seagrass productivity. Previous studies have confirmed the positive influence of increasing CO2 on photosynthesis and survival of the temperate eelgrass Zostera marina, but the acclimation of photoprotective mechanisms in this context has not been characterized. We aimed to quantify the long-term impacts of ocean acidification on photochemical control mechanisms that promote photosynthesis while simultaneously protecting eelgrass from photodamage. Eelgrass were grown in controlled outdoor aquaria at different aqueous CO2 concentrations ranging from ~50 to ~2100 μM from May 2013 to October 2014 and examined for differences in leaf optical properties. Even with daily and seasonal variations of temperature and light, CO2 enrichment consistently increased plant size, leaf thickness and chlorophyll use efficiency, and decreased pigment content and the package effect while maintaining similar light-harvesting efficiency. These acclimation responses suggest that a common photosynthetic sensory function, such as redox regulation, can be manipulated by CO2 availability, as well as light, and may serve to optimize photosynthetic carbon gain by seagrasses into the Anthropocene. |
format |
Article in Journal/Newspaper |
author |
Celebi-Ergin, Billur Zimmerman, Richard C. Hill, Victoria J. |
author_facet |
Celebi-Ergin, Billur Zimmerman, Richard C. Hill, Victoria J. |
author_sort |
Celebi-Ergin, Billur |
title |
Impact of Ocean Carbonation on Long-Term Regulation of Light Harvesting in Eelgrass Zostera marina |
title_short |
Impact of Ocean Carbonation on Long-Term Regulation of Light Harvesting in Eelgrass Zostera marina |
title_full |
Impact of Ocean Carbonation on Long-Term Regulation of Light Harvesting in Eelgrass Zostera marina |
title_fullStr |
Impact of Ocean Carbonation on Long-Term Regulation of Light Harvesting in Eelgrass Zostera marina |
title_full_unstemmed |
Impact of Ocean Carbonation on Long-Term Regulation of Light Harvesting in Eelgrass Zostera marina |
title_sort |
impact of ocean carbonation on long-term regulation of light harvesting in eelgrass zostera marina |
publisher |
ODU Digital Commons |
publishDate |
2021 |
url |
https://digitalcommons.odu.edu/oeas_fac_pubs/424 https://doi.org/10.3354/meps13777 https://digitalcommons.odu.edu/context/oeas_fac_pubs/article/1435/viewcontent/Zimmerman_2021_ImpactofOceanCarbonationonOCR.pdf |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
OES Faculty Publications |
op_relation |
https://digitalcommons.odu.edu/oeas_fac_pubs/424 doi:10.3354/meps13777 https://digitalcommons.odu.edu/context/oeas_fac_pubs/article/1435/viewcontent/Zimmerman_2021_ImpactofOceanCarbonationonOCR.pdf |
op_rights |
Copyright © 2021 Inter-Research. Version of record under embargo until five years after publication. |
op_doi |
https://doi.org/10.3354/meps13777 |
container_title |
Marine Ecology Progress Series |
container_volume |
671 |
container_start_page |
111 |
op_container_end_page |
128 |
_version_ |
1768372466535628800 |