Stable Photosymbiotic Relationship under CO2-Induced Acidification in the Acoel Worm Symsagittifera Roscoffensis
International audience As a consequence of anthropogenic CO 2 emissions, oceans are becoming more acidic, a phenomenon known as ocean acidification. Many marine species predicted to be sensitive to this stressor are photosymbiotic, including corals and foraminifera. However, the direct impact of oce...
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ftinsu:oai:HAL:insu-03325433v1 2024-02-11T10:07:24+01:00 Stable Photosymbiotic Relationship under CO2-Induced Acidification in the Acoel Worm Symsagittifera Roscoffensis Dupont, Sam Moya, Aurélie Bailly, Xavier Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Station biologique de Roscoff = Roscoff Marine Station (SBR) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) 2012-01-09 https://insu.hal.science/insu-03325433 https://insu.hal.science/insu-03325433/document https://insu.hal.science/insu-03325433/file/pone.0029568.pdf https://doi.org/10.1371/journal.pone.0029568 en eng HAL CCSD Public Library of Science info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0029568 insu-03325433 https://insu.hal.science/insu-03325433 https://insu.hal.science/insu-03325433/document https://insu.hal.science/insu-03325433/file/pone.0029568.pdf doi:10.1371/journal.pone.0029568 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1932-6203 EISSN: 1932-6203 PLoS ONE https://insu.hal.science/insu-03325433 PLoS ONE, 2012, 7 (1), pp.e29568. ⟨10.1371/journal.pone.0029568⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2012 ftinsu https://doi.org/10.1371/journal.pone.0029568 2024-01-24T17:31:16Z International audience As a consequence of anthropogenic CO 2 emissions, oceans are becoming more acidic, a phenomenon known as ocean acidification. Many marine species predicted to be sensitive to this stressor are photosymbiotic, including corals and foraminifera. However, the direct impact of ocean acidification on the relationship between the photosynthetic and nonphotosynthetic organism remains unclear and is complicated by other physiological processes known to be sensitive to ocean acidification (e.g. calcification and feeding). We have studied the impact of extreme pH decrease/pCO 2 increase on the complete life cycle of the photosymbiotic, non-calcifying and pure autotrophic acoel worm, Symsagittifera roscoffensis. Our results show that this species is resistant to high pCO 2 with no negative or even positive effects on fitness (survival, growth, fertility) and/or photosymbiotic relationship till pCO 2 up to 54 K matm. Some sub-lethal bleaching is only observed at pCO 2 up to 270 K matm when seawater is saturated by CO 2. This indicates that photosymbiosis can be resistant to high pCO 2. If such a finding would be confirmed in other photosymbiotic species, we could then hypothesize that negative impact of high pCO 2 observed on other photosymbiotic species such as corals and foraminifera could occur through indirect impacts at other levels (calcification, feeding). Article in Journal/Newspaper Ocean acidification Institut national des sciences de l'Univers: HAL-INSU PLoS ONE 7 1 e29568 |
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Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Dupont, Sam Moya, Aurélie Bailly, Xavier Stable Photosymbiotic Relationship under CO2-Induced Acidification in the Acoel Worm Symsagittifera Roscoffensis |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience As a consequence of anthropogenic CO 2 emissions, oceans are becoming more acidic, a phenomenon known as ocean acidification. Many marine species predicted to be sensitive to this stressor are photosymbiotic, including corals and foraminifera. However, the direct impact of ocean acidification on the relationship between the photosynthetic and nonphotosynthetic organism remains unclear and is complicated by other physiological processes known to be sensitive to ocean acidification (e.g. calcification and feeding). We have studied the impact of extreme pH decrease/pCO 2 increase on the complete life cycle of the photosymbiotic, non-calcifying and pure autotrophic acoel worm, Symsagittifera roscoffensis. Our results show that this species is resistant to high pCO 2 with no negative or even positive effects on fitness (survival, growth, fertility) and/or photosymbiotic relationship till pCO 2 up to 54 K matm. Some sub-lethal bleaching is only observed at pCO 2 up to 270 K matm when seawater is saturated by CO 2. This indicates that photosymbiosis can be resistant to high pCO 2. If such a finding would be confirmed in other photosymbiotic species, we could then hypothesize that negative impact of high pCO 2 observed on other photosymbiotic species such as corals and foraminifera could occur through indirect impacts at other levels (calcification, feeding). |
author2 |
Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Station biologique de Roscoff = Roscoff Marine Station (SBR) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Dupont, Sam Moya, Aurélie Bailly, Xavier |
author_facet |
Dupont, Sam Moya, Aurélie Bailly, Xavier |
author_sort |
Dupont, Sam |
title |
Stable Photosymbiotic Relationship under CO2-Induced Acidification in the Acoel Worm Symsagittifera Roscoffensis |
title_short |
Stable Photosymbiotic Relationship under CO2-Induced Acidification in the Acoel Worm Symsagittifera Roscoffensis |
title_full |
Stable Photosymbiotic Relationship under CO2-Induced Acidification in the Acoel Worm Symsagittifera Roscoffensis |
title_fullStr |
Stable Photosymbiotic Relationship under CO2-Induced Acidification in the Acoel Worm Symsagittifera Roscoffensis |
title_full_unstemmed |
Stable Photosymbiotic Relationship under CO2-Induced Acidification in the Acoel Worm Symsagittifera Roscoffensis |
title_sort |
stable photosymbiotic relationship under co2-induced acidification in the acoel worm symsagittifera roscoffensis |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://insu.hal.science/insu-03325433 https://insu.hal.science/insu-03325433/document https://insu.hal.science/insu-03325433/file/pone.0029568.pdf https://doi.org/10.1371/journal.pone.0029568 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
ISSN: 1932-6203 EISSN: 1932-6203 PLoS ONE https://insu.hal.science/insu-03325433 PLoS ONE, 2012, 7 (1), pp.e29568. ⟨10.1371/journal.pone.0029568⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0029568 insu-03325433 https://insu.hal.science/insu-03325433 https://insu.hal.science/insu-03325433/document https://insu.hal.science/insu-03325433/file/pone.0029568.pdf doi:10.1371/journal.pone.0029568 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1371/journal.pone.0029568 |
container_title |
PLoS ONE |
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7 |
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1 |
container_start_page |
e29568 |
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1790605954816933888 |