Seagrass ecophysiological performance under ocean warming and acidification
Seagrasses play an essential ecological role within coastal habitats and their worldwide population decline has been linked to different types of anthropogenic forces. We investigated, for the first time, the combined effects of future ocean warming and acidification on fundamental biological proces...
Published in: | Scientific Reports |
---|---|
Main Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2019
|
Subjects: | |
Online Access: | http://hdl.handle.net/10451/38782 https://doi.org/10.1038/srep41443 |
id |
ftunivlisboa:oai:repositorio.ul.pt:10451/38782 |
---|---|
record_format |
openpolar |
spelling |
ftunivlisboa:oai:repositorio.ul.pt:10451/38782 2023-05-15T17:51:28+02:00 Seagrass ecophysiological performance under ocean warming and acidification Repolho, Tiago Duarte, Bernardo Dionísio, Gisela Paula, José Ricardo Lopes, Ana Rita Rosa, Inês F. Grilo, Tiago Caçador, Isabel Calado, Ricardo Rosa, Rui 2019-06-25T09:42:44Z http://hdl.handle.net/10451/38782 https://doi.org/10.1038/srep41443 eng eng https://www.nature.com/articles/srep41443 2045-2322 http://hdl.handle.net/10451/38782 doi:10.1038/srep41443 restrictedAccess Acids Hydrogen-Ion Concentration Photobiology Pigmentation Plant Leaves Plant Shoots Zosteraceae Oceans and Seas article 2019 ftunivlisboa https://doi.org/10.1038/srep41443 2022-05-25T18:39:43Z Seagrasses play an essential ecological role within coastal habitats and their worldwide population decline has been linked to different types of anthropogenic forces. We investigated, for the first time, the combined effects of future ocean warming and acidification on fundamental biological processes of Zostera noltii, including shoot density, leaf coloration, photophysiology (electron transport rate, ETR; maximum PSII quantum yield, Fv/Fm) and photosynthetic pigments. Shoot density was severely affected under warming conditions, with a concomitant increase in the frequency of brownish colored leaves (seagrass die-off). Warming was responsible for a significant decrease in ETR and Fv/Fm (particularly under control pH conditions), while promoting the highest ETR variability (among experimental treatments). Warming also elicited a significant increase in pheophytin and carotenoid levels, alongside an increase in carotenoid/chlorophyll ratio and De-Epoxidation State (DES). Acidification significantly affected photosynthetic pigments content (antheraxanthin, β-carotene, violaxanthin and zeaxanthin), with a significant decrease being recorded under the warming scenario. No significant interaction between ocean acidification and warming was observed. Our findings suggest that future ocean warming will be a foremost determinant stressor influencing Z. noltii survival and physiological performance. Additionally, acidification conditions to occur in the future will be unable to counteract deleterious effects posed by ocean warming. info:eu-repo/semantics/publishedVersion Article in Journal/Newspaper Ocean acidification Universidade de Lisboa: repositório.UL Scientific Reports 7 1 |
institution |
Open Polar |
collection |
Universidade de Lisboa: repositório.UL |
op_collection_id |
ftunivlisboa |
language |
English |
topic |
Acids Hydrogen-Ion Concentration Photobiology Pigmentation Plant Leaves Plant Shoots Zosteraceae Oceans and Seas |
spellingShingle |
Acids Hydrogen-Ion Concentration Photobiology Pigmentation Plant Leaves Plant Shoots Zosteraceae Oceans and Seas Repolho, Tiago Duarte, Bernardo Dionísio, Gisela Paula, José Ricardo Lopes, Ana Rita Rosa, Inês F. Grilo, Tiago Caçador, Isabel Calado, Ricardo Rosa, Rui Seagrass ecophysiological performance under ocean warming and acidification |
topic_facet |
Acids Hydrogen-Ion Concentration Photobiology Pigmentation Plant Leaves Plant Shoots Zosteraceae Oceans and Seas |
description |
Seagrasses play an essential ecological role within coastal habitats and their worldwide population decline has been linked to different types of anthropogenic forces. We investigated, for the first time, the combined effects of future ocean warming and acidification on fundamental biological processes of Zostera noltii, including shoot density, leaf coloration, photophysiology (electron transport rate, ETR; maximum PSII quantum yield, Fv/Fm) and photosynthetic pigments. Shoot density was severely affected under warming conditions, with a concomitant increase in the frequency of brownish colored leaves (seagrass die-off). Warming was responsible for a significant decrease in ETR and Fv/Fm (particularly under control pH conditions), while promoting the highest ETR variability (among experimental treatments). Warming also elicited a significant increase in pheophytin and carotenoid levels, alongside an increase in carotenoid/chlorophyll ratio and De-Epoxidation State (DES). Acidification significantly affected photosynthetic pigments content (antheraxanthin, β-carotene, violaxanthin and zeaxanthin), with a significant decrease being recorded under the warming scenario. No significant interaction between ocean acidification and warming was observed. Our findings suggest that future ocean warming will be a foremost determinant stressor influencing Z. noltii survival and physiological performance. Additionally, acidification conditions to occur in the future will be unable to counteract deleterious effects posed by ocean warming. info:eu-repo/semantics/publishedVersion |
format |
Article in Journal/Newspaper |
author |
Repolho, Tiago Duarte, Bernardo Dionísio, Gisela Paula, José Ricardo Lopes, Ana Rita Rosa, Inês F. Grilo, Tiago Caçador, Isabel Calado, Ricardo Rosa, Rui |
author_facet |
Repolho, Tiago Duarte, Bernardo Dionísio, Gisela Paula, José Ricardo Lopes, Ana Rita Rosa, Inês F. Grilo, Tiago Caçador, Isabel Calado, Ricardo Rosa, Rui |
author_sort |
Repolho, Tiago |
title |
Seagrass ecophysiological performance under ocean warming and acidification |
title_short |
Seagrass ecophysiological performance under ocean warming and acidification |
title_full |
Seagrass ecophysiological performance under ocean warming and acidification |
title_fullStr |
Seagrass ecophysiological performance under ocean warming and acidification |
title_full_unstemmed |
Seagrass ecophysiological performance under ocean warming and acidification |
title_sort |
seagrass ecophysiological performance under ocean warming and acidification |
publishDate |
2019 |
url |
http://hdl.handle.net/10451/38782 https://doi.org/10.1038/srep41443 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://www.nature.com/articles/srep41443 2045-2322 http://hdl.handle.net/10451/38782 doi:10.1038/srep41443 |
op_rights |
restrictedAccess |
op_doi |
https://doi.org/10.1038/srep41443 |
container_title |
Scientific Reports |
container_volume |
7 |
container_issue |
1 |
_version_ |
1766158624586989568 |