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dc.contributor.authorHerrera, Marcela
dc.contributor.authorLiew, Yi Jin2021-06-15
dc.contributor.authorVenn, Alexander
dc.contributor.authorTambutté, Eric
dc.contributor.authorZoccola, Didier
dc.contributor.authorTambutté, Sylvie
dc.contributor.authorCui, Guoxin
dc.contributor.authorAranda, Manuel
dc.date.accessioned2021-08-08T08:03:15Z
dc.date.available2021-08-08T08:03:15Z
dc.date.issued2021-07-19
dc.date.submitted2021-02-10
dc.identifier.citationHerrera, M., Liew, Y. J., Venn, A., Tambutté, E., Zoccola, D., Tambutté, S., … Aranda, M. (2021). New Insights From Transcriptomic Data Reveal Differential Effects of CO2 Acidification Stress on Photosynthesis of an Endosymbiotic Dinoflagellate in hospite. Frontiers in Microbiology, 12. doi:10.3389/fmicb.2021.666510
dc.identifier.issn1664-302X
dc.identifier.pmid34349734
dc.identifier.doi10.3389/fmicb.2021.666510
dc.identifier.urihttp://hdl.handle.net/10754/670467
dc.description.abstractOcean acidification (OA) has both detrimental as well as beneficial effects on marine life; it negatively affects calcifiers while enhancing the productivity of photosynthetic organisms. To date, many studies have focused on the impacts of OA on calcification in reef-building corals, a process particularly susceptible to acidification. However, little is known about the effects of OA on their photosynthetic algal partners, with some studies suggesting potential benefits for symbiont productivity. Here, we investigated the transcriptomic response of the endosymbiont Symbiodinium microadriaticum (CCMP2467) in the Red Sea coral Stylophora pistillata subjected to different long-term (2 years) OA treatments (pH 8.0, 7.8, 7.4, 7.2). Transcriptomic analyses revealed that symbionts from corals under lower pH treatments responded to acidification by increasing the expression of genes related to photosynthesis and carbon-concentrating mechanisms. These processes were mostly up-regulated and associated metabolic pathways were significantly enriched, suggesting an overall positive effect of OA on the expression of photosynthesis-related genes. To test this conclusion on a physiological level, we analyzed the symbiont’s photochemical performance across treatments. However, in contrast to the beneficial effects suggested by the observed gene expression changes, we found significant impairment of photosynthesis with increasing pCO2. Collectively, our data suggest that over-expression of photosynthesis-related genes is not a beneficial effect of OA but rather an acclimation response of the holobiont to different water chemistries. Our study highlights the complex effects of ocean acidification on these symbiotic organisms and the role of the host in determining symbiont productivity and performance.
dc.description.sponsorshipThis study was based on work supported by the KAUST Office of Sponsored Research under award no. FCC/1/1973-22-01 and the Centre Scientifique de Monaco Research Program, which is supported by the Government of the Principality of Monaco.
dc.description.sponsorshipWe thank D. Desgre, N. Caminiti-Segonds, and N. Techer for assistance in coral husbandry as well as the KAUST Sequencing Core Facility for the sequencing of the libraries.
dc.publisherFrontiers Media SA
dc.relation.urlhttps://www.frontiersin.org/articles/10.3389/fmicb.2021.666510/full
dc.rightsThis 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.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectGene Expression
dc.subjectPco2
dc.subjectOcean Acidification
dc.subjectCarbon-concentrating Mechanism
dc.subjectF’/Fm’
dc.subjectCoral-dinoflagellate Symbiosis
dc.subjectSymbiodiniaceae
dc.titleNew Insights From Transcriptomic Data Reveal Differential Effects of CO2 Acidification Stress on Photosynthesis of an Endosymbiotic Dinoflagellate in hospite
dc.typeArticle
dc.contributor.departmentRed Sea Research Center (RSRC), Biological and Environmental Sciences and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.
dc.contributor.departmentRed Sea Research Center (RSRC)
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentMarine Science Program
dc.identifier.journalFrontiers in microbiology
dc.identifier.pmcidPMC8326563
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionMarine Department, Centre Scientifique de Monaco, Monaco, Monaco.
dc.identifier.volume12
kaust.personLiew, Yi Jin2021-06-15
kaust.personCui, Guoxin
kaust.personAranda, Manuel
kaust.grant.numberFCC/1/1973-22-01
dc.date.accepted2021-06-15
refterms.dateFOA2021-08-08T08:04:23Z
kaust.acknowledged.supportUnitKAUST Office of Sponsored Research


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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.
Except where otherwise noted, this item's license is described as 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.