Spatio-Temporal Analyses of Symbiodinium Physiology of the Coral Pocillopora verrucosa along Large-Scale Nutrient and Temperature Gradients in the Red Sea

Handle URI:
http://hdl.handle.net/10754/334613
Title:
Spatio-Temporal Analyses of Symbiodinium Physiology of the Coral Pocillopora verrucosa along Large-Scale Nutrient and Temperature Gradients in the Red Sea
Authors:
Sawall, Yvonne; Al-Sofyani, Abdulmohsin; Banguera Hinestroza, Eulalia; Voolstra, Christian R. ( 0000-0003-4555-3795 )
Abstract:
Algal symbionts (zooxanthellae, genus Symbiodinium) of scleractinian corals respond strongly to temperature, nutrient and light changes. These factors vary greatly along the north-south gradient in the Red Sea and include conditions, which are outside of those typically considered optimal for coral growth. Nevertheless, coral communities thrive throughout the Red Sea, suggesting that zooxanthellae have successfully acclimatized or adapted to the harsh conditions they experience particularly in the south (high temperatures and high nutrient supply). As such, the Red Sea is a region, which may help to better understand how zooxanthellae and their coral hosts successfully acclimatize or adapt to environmental change (e. g. increased temperatures and localized eutrophication). To gain further insight into the physiology of coral symbionts in the Red Sea, we examined the abundance of dominant Symbiodinium types associated with the coral Pocillopora verrucosa, and measured Symbiodinium physiological characteristics (i.e. photosynthetic processes, cell density, pigmentation, and protein composition) along the latitudinal gradient of the Red Sea in summer and winter. Despite the strong environmental gradients from north to south, our results demonstrate that Symbiodinium microadriaticum (type A1) was the predominant species in P. verrucosa along the latitudinal gradient. Furthermore, measured physiological characteristics were found to vary more with prevailing seasonal environmental conditions than with region-specific differences, although the measured environmental parameters displayed much higher spatial than temporal variability. We conclude that our findings might present the result of long-term acclimatization or adaptation of S. microadriaticum to regionally specific conditions within the Red Sea. Of additional note, high nutrients in the South correlated with high zooxanthellae density indicating a compensation for a temperature-driven loss of photosynthetic performance, which may prove promising for the resilience of these corals under increase of temperature increase and eutrophication.
KAUST Department:
Red Sea Research Center (RSRC)
Citation:
Sawall Y, Al-Sofyani A, Banguera-Hinestroza E, Voolstra CR (2014) Spatio-Temporal Analyses of Symbiodinium Physiology of the Coral Pocillopora verrucosa along Large-Scale Nutrient and Temperature Gradients in the Red Sea. PLoS ONE 9: e103179. doi:10.1371/journal.pone.0103179.
Publisher:
Public Library of Science
Journal:
PLoS ONE
Issue Date:
19-Aug-2014
DOI:
10.1371/journal.pone.0103179
PubMed ID:
25137123
PubMed Central ID:
PMC4138093
Type:
Article
ISSN:
1932-6203
Appears in Collections:
Articles; Red Sea Research Center (RSRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorSawall, Yvonneen
dc.contributor.authorAl-Sofyani, Abdulmohsinen
dc.contributor.authorBanguera Hinestroza, Eulaliaen
dc.contributor.authorVoolstra, Christian R.en
dc.date.accessioned2014-11-11T14:32:05Z-
dc.date.available2014-11-11T14:32:05Z-
dc.date.issued2014-08-19en
dc.identifier.citationSawall Y, Al-Sofyani A, Banguera-Hinestroza E, Voolstra CR (2014) Spatio-Temporal Analyses of Symbiodinium Physiology of the Coral Pocillopora verrucosa along Large-Scale Nutrient and Temperature Gradients in the Red Sea. PLoS ONE 9: e103179. doi:10.1371/journal.pone.0103179.en
dc.identifier.issn1932-6203en
dc.identifier.pmid25137123en
dc.identifier.doi10.1371/journal.pone.0103179en
dc.identifier.urihttp://hdl.handle.net/10754/334613en
dc.description.abstractAlgal symbionts (zooxanthellae, genus Symbiodinium) of scleractinian corals respond strongly to temperature, nutrient and light changes. These factors vary greatly along the north-south gradient in the Red Sea and include conditions, which are outside of those typically considered optimal for coral growth. Nevertheless, coral communities thrive throughout the Red Sea, suggesting that zooxanthellae have successfully acclimatized or adapted to the harsh conditions they experience particularly in the south (high temperatures and high nutrient supply). As such, the Red Sea is a region, which may help to better understand how zooxanthellae and their coral hosts successfully acclimatize or adapt to environmental change (e. g. increased temperatures and localized eutrophication). To gain further insight into the physiology of coral symbionts in the Red Sea, we examined the abundance of dominant Symbiodinium types associated with the coral Pocillopora verrucosa, and measured Symbiodinium physiological characteristics (i.e. photosynthetic processes, cell density, pigmentation, and protein composition) along the latitudinal gradient of the Red Sea in summer and winter. Despite the strong environmental gradients from north to south, our results demonstrate that Symbiodinium microadriaticum (type A1) was the predominant species in P. verrucosa along the latitudinal gradient. Furthermore, measured physiological characteristics were found to vary more with prevailing seasonal environmental conditions than with region-specific differences, although the measured environmental parameters displayed much higher spatial than temporal variability. We conclude that our findings might present the result of long-term acclimatization or adaptation of S. microadriaticum to regionally specific conditions within the Red Sea. Of additional note, high nutrients in the South correlated with high zooxanthellae density indicating a compensation for a temperature-driven loss of photosynthetic performance, which may prove promising for the resilience of these corals under increase of temperature increase and eutrophication.en
dc.language.isoenen
dc.publisherPublic Library of Scienceen
dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.en
dc.rightsArchived with thanks to PLoS ONEen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleSpatio-Temporal Analyses of Symbiodinium Physiology of the Coral Pocillopora verrucosa along Large-Scale Nutrient and Temperature Gradients in the Red Seaen
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalPLoS ONEen
dc.identifier.pmcidPMC4138093en
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionBenthic Ecology group, Helmholtz Center for Ocean Research (GEOMAR), Kiel, Germanyen
dc.contributor.institutionDepartment of Marine Biology, Faculty of Marine Sciences, King Abdulaziz University (KAU), Jeddah, Saudi Arabiaen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorVoolstra, Christian R.en
kaust.authorBanguera Hinestroza, Eulaliaen
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