Transcriptomic Changes in Coral Holobionts Provide Insights into Physiological Challenges of Future Climate and Ocean Change.
Tropical reef-building coral stress levels will intensify with the predicted rising atmospheric CO2 resulting in ocean temperature and acidification increase. Most studies to date have focused on the destabilization of coral-dinoflagellate symbioses due to warming oceans, or declining calcification...
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ftdoajarticles:oai:doaj.org/article:8e7a63497b864261b1e14796e6e28cd9 2023-05-15T17:50:07+02:00 Transcriptomic Changes in Coral Holobionts Provide Insights into Physiological Challenges of Future Climate and Ocean Change. Paulina Kaniewska Chon-Kit Kenneth Chan David Kline Edmund Yew Siang Ling Nedeljka Rosic David Edwards Ove Hoegh-Guldberg Sophie Dove 2015-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0139223 https://doaj.org/article/8e7a63497b864261b1e14796e6e28cd9 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC4624983?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0139223 https://doaj.org/article/8e7a63497b864261b1e14796e6e28cd9 PLoS ONE, Vol 10, Iss 10, p e0139223 (2015) Medicine R Science Q article 2015 ftdoajarticles https://doi.org/10.1371/journal.pone.0139223 2022-12-31T00:04:41Z Tropical reef-building coral stress levels will intensify with the predicted rising atmospheric CO2 resulting in ocean temperature and acidification increase. Most studies to date have focused on the destabilization of coral-dinoflagellate symbioses due to warming oceans, or declining calcification due to ocean acidification. In our study, pH and temperature conditions consistent with the end-of-century scenarios of the Intergovernmental Panel on Climate Change (IPCC) caused major changes in photosynthesis and respiration, in addition to decreased calcification rates in the coral Acropora millepora. Population density of symbiotic dinoflagellates (Symbiodinium) under high levels of ocean acidification and temperature (Representative Concentration Pathway, RCP8.5) decreased to half of that found under present day conditions, with photosynthetic and respiratory rates also being reduced by 40%. These physiological changes were accompanied by evidence for gene regulation of calcium and bicarbonate transporters along with components of the organic matrix. Metatranscriptomic RNA-Seq data analyses showed an overall down regulation of metabolic transcripts, and an increased abundance of transcripts involved in circadian clock control, controlling the damage of oxidative stress, calcium signaling/homeostasis, cytoskeletal interactions, transcription regulation, DNA repair, Wnt signaling and apoptosis/immunity/ toxins. We suggest that increased maintenance costs under ocean acidification and warming, and diversion of cellular ATP to pH homeostasis, oxidative stress response, UPR and DNA repair, along with metabolic suppression, may underpin why Acroporid species tend not to thrive under future environmental stress. Our study highlights the potential increased energy demand when the coral holobiont is exposed to high levels of ocean warming and acidification. Article in Journal/Newspaper Ocean acidification Directory of Open Access Journals: DOAJ Articles PLOS ONE 10 10 e0139223 |
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Directory of Open Access Journals: DOAJ Articles |
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Medicine R Science Q |
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Medicine R Science Q Paulina Kaniewska Chon-Kit Kenneth Chan David Kline Edmund Yew Siang Ling Nedeljka Rosic David Edwards Ove Hoegh-Guldberg Sophie Dove Transcriptomic Changes in Coral Holobionts Provide Insights into Physiological Challenges of Future Climate and Ocean Change. |
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Medicine R Science Q |
description |
Tropical reef-building coral stress levels will intensify with the predicted rising atmospheric CO2 resulting in ocean temperature and acidification increase. Most studies to date have focused on the destabilization of coral-dinoflagellate symbioses due to warming oceans, or declining calcification due to ocean acidification. In our study, pH and temperature conditions consistent with the end-of-century scenarios of the Intergovernmental Panel on Climate Change (IPCC) caused major changes in photosynthesis and respiration, in addition to decreased calcification rates in the coral Acropora millepora. Population density of symbiotic dinoflagellates (Symbiodinium) under high levels of ocean acidification and temperature (Representative Concentration Pathway, RCP8.5) decreased to half of that found under present day conditions, with photosynthetic and respiratory rates also being reduced by 40%. These physiological changes were accompanied by evidence for gene regulation of calcium and bicarbonate transporters along with components of the organic matrix. Metatranscriptomic RNA-Seq data analyses showed an overall down regulation of metabolic transcripts, and an increased abundance of transcripts involved in circadian clock control, controlling the damage of oxidative stress, calcium signaling/homeostasis, cytoskeletal interactions, transcription regulation, DNA repair, Wnt signaling and apoptosis/immunity/ toxins. We suggest that increased maintenance costs under ocean acidification and warming, and diversion of cellular ATP to pH homeostasis, oxidative stress response, UPR and DNA repair, along with metabolic suppression, may underpin why Acroporid species tend not to thrive under future environmental stress. Our study highlights the potential increased energy demand when the coral holobiont is exposed to high levels of ocean warming and acidification. |
format |
Article in Journal/Newspaper |
author |
Paulina Kaniewska Chon-Kit Kenneth Chan David Kline Edmund Yew Siang Ling Nedeljka Rosic David Edwards Ove Hoegh-Guldberg Sophie Dove |
author_facet |
Paulina Kaniewska Chon-Kit Kenneth Chan David Kline Edmund Yew Siang Ling Nedeljka Rosic David Edwards Ove Hoegh-Guldberg Sophie Dove |
author_sort |
Paulina Kaniewska |
title |
Transcriptomic Changes in Coral Holobionts Provide Insights into Physiological Challenges of Future Climate and Ocean Change. |
title_short |
Transcriptomic Changes in Coral Holobionts Provide Insights into Physiological Challenges of Future Climate and Ocean Change. |
title_full |
Transcriptomic Changes in Coral Holobionts Provide Insights into Physiological Challenges of Future Climate and Ocean Change. |
title_fullStr |
Transcriptomic Changes in Coral Holobionts Provide Insights into Physiological Challenges of Future Climate and Ocean Change. |
title_full_unstemmed |
Transcriptomic Changes in Coral Holobionts Provide Insights into Physiological Challenges of Future Climate and Ocean Change. |
title_sort |
transcriptomic changes in coral holobionts provide insights into physiological challenges of future climate and ocean change. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2015 |
url |
https://doi.org/10.1371/journal.pone.0139223 https://doaj.org/article/8e7a63497b864261b1e14796e6e28cd9 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
PLoS ONE, Vol 10, Iss 10, p e0139223 (2015) |
op_relation |
http://europepmc.org/articles/PMC4624983?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0139223 https://doaj.org/article/8e7a63497b864261b1e14796e6e28cd9 |
op_doi |
https://doi.org/10.1371/journal.pone.0139223 |
container_title |
PLOS ONE |
container_volume |
10 |
container_issue |
10 |
container_start_page |
e0139223 |
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1766156715668013056 |