Mesophotic coral depth acclimatization is a function of host-specific symbiont physiology

Handle URI:
http://hdl.handle.net/10754/346614
Title:
Mesophotic coral depth acclimatization is a function of host-specific symbiont physiology
Authors:
Ziegler, Maren ( 0000-0003-2237-9261 ) ; Roder, Cornelia; Büchel, Claudia; Voolstra, Christian R. ( 0000-0003-4555-3795 )
Abstract:
Mesophotic coral ecosystems receive increasing attention owing to their potential as deep coral refuges in times of global environmental change. Here, the mechanisms of coral holobiont photoacclimatization over a 60 m depth gradient in the central Red Sea were examined for the four coral genera Porites, Leptoseris, Pachyseris, and Podabacia. General acclimatization strategies were common to all host-symbiont combinations, e.g., Symbiodinium cell densities and photoprotective (PP) to light-harvesting pigment ratios both significantly decreased with water depth. Porites harbored Symbiodinium type C15 over the whole 60 m depth range, while Pachyseris and Podabacia had limited vertical distributions and hosted mainly Symbiodinium type C1. Symbiodinium type C15 had generally higher xanthophyll de-epoxidation rates and lower maximum quantum yields than C1, and also exhibited a strong photoacclimatory signal over depth that relates to the large distribution range of Porites. Interestingly, the coral host had an effect on Symbiodinium pigment composition. When comparing Symbiodinium type C1 in Podabacia and Pachyseris, the ß-carotene chl a−1, the peridinin chl a−1, and diadinoxanthin chl a−1 ratios were significantly different between host species. Our data support a view that depth acclimatization of corals in the mesophotics is facilitated by Symbiodinium physiology, which in turn is host-specific.
KAUST Department:
Red Sea Research Center (RSRC)
Citation:
Mesophotic coral depth acclimatization is a function of host-specific symbiont physiology 2015, 2 Frontiers in Marine Science
Publisher:
Frontiers Media SA
Journal:
Frontiers in Marine Science
Issue Date:
6-Feb-2015
DOI:
10.3389/fmars.2015.00004
Type:
Article
ISSN:
2296-7745
Additional Links:
http://journal.frontiersin.org/Article/10.3389/fmars.2015.00004/abstract
Appears in Collections:
Articles; Red Sea Research Center (RSRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorZiegler, Marenen
dc.contributor.authorRoder, Corneliaen
dc.contributor.authorBüchel, Claudiaen
dc.contributor.authorVoolstra, Christian R.en
dc.date.accessioned2015-03-15T14:08:49Zen
dc.date.available2015-03-15T14:08:49Zen
dc.date.issued2015-02-06en
dc.identifier.citationMesophotic coral depth acclimatization is a function of host-specific symbiont physiology 2015, 2 Frontiers in Marine Scienceen
dc.identifier.issn2296-7745en
dc.identifier.doi10.3389/fmars.2015.00004en
dc.identifier.urihttp://hdl.handle.net/10754/346614en
dc.description.abstractMesophotic coral ecosystems receive increasing attention owing to their potential as deep coral refuges in times of global environmental change. Here, the mechanisms of coral holobiont photoacclimatization over a 60 m depth gradient in the central Red Sea were examined for the four coral genera Porites, Leptoseris, Pachyseris, and Podabacia. General acclimatization strategies were common to all host-symbiont combinations, e.g., Symbiodinium cell densities and photoprotective (PP) to light-harvesting pigment ratios both significantly decreased with water depth. Porites harbored Symbiodinium type C15 over the whole 60 m depth range, while Pachyseris and Podabacia had limited vertical distributions and hosted mainly Symbiodinium type C1. Symbiodinium type C15 had generally higher xanthophyll de-epoxidation rates and lower maximum quantum yields than C1, and also exhibited a strong photoacclimatory signal over depth that relates to the large distribution range of Porites. Interestingly, the coral host had an effect on Symbiodinium pigment composition. When comparing Symbiodinium type C1 in Podabacia and Pachyseris, the ß-carotene chl a−1, the peridinin chl a−1, and diadinoxanthin chl a−1 ratios were significantly different between host species. Our data support a view that depth acclimatization of corals in the mesophotics is facilitated by Symbiodinium physiology, which in turn is host-specific.en
dc.publisherFrontiers Media SAen
dc.relation.urlhttp://journal.frontiersin.org/Article/10.3389/fmars.2015.00004/abstracten
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) or licensor 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.en
dc.titleMesophotic coral depth acclimatization is a function of host-specific symbiont physiologyen
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalFrontiers in Marine Scienceen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Biosciences, Institute of Molecular Biosciences, Goethe University Frankfurt, Frankfurt am Main, Germanyen
dc.contributor.institutionIchthyology Section, Senckenberg Research Institute and Natural History Museum, Frankfurt am Main, Germanyen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorZiegler, Marenen
kaust.authorRoder, Corneliaen
kaust.authorVoolstra, Christian R.en
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