Bicarbonate transporters in corals point towards a key step in the evolution of cnidarian calcification
Type
ArticleAuthors
Zoccola, Didier
Ganot, Philippe
Bertucci, Anthony
Caminiti-Segonds, Natacha
Techer, Nathalie
Voolstra, Christian R.

Aranda, Manuel

Tambutté, Eric
Allemand, Denis
Casey, Joseph R
Tambutté, Sylvie
KAUST Department
Biological and Environmental Sciences and Engineering (BESE) DivisionMarine Science Program
Red Sea Research Center (RSRC)
Date
2015-06-04Online Publication Date
2015-06-04Print Publication Date
2015-09Permanent link to this record
http://hdl.handle.net/10754/556700
Metadata
Show full item recordAbstract
The bicarbonate ion (HCO3−) is involved in two major physiological processes in corals, biomineralization and photosynthesis, yet no molecular data on bicarbonate transporters are available. Here, we characterized plasma membrane-type HCO3− transporters in the scleractinian coral Stylophora pistillata. Eight solute carrier (SLC) genes were found in the genome: five homologs of mammalian-type SLC4 family members, and three of mammalian-type SLC26 family members. Using relative expression analysis and immunostaining, we analyzed the cellular distribution of these transporters and conducted phylogenetic analyses to determine the extent of conservation among cnidarian model organisms. Our data suggest that the SLC4γ isoform is specific to scleractinian corals and responsible for supplying HCO3− to the site of calcification. Taken together, SLC4γ appears to be one of the key genes for skeleton building in corals, which bears profound implications for our understanding of coral biomineralization and the evolution of scleractinian corals within cnidarians.Citation
Bicarbonate transporters in corals point towards a key step in the evolution of cnidarian calcification 2015, 5:9983 Scientific ReportsPublisher
Springer NatureJournal
Scientific ReportsPubMed ID
26040894Additional Links
http://www.nature.com/doifinder/10.1038/srep09983ae974a485f413a2113503eed53cd6c53
10.1038/srep09983
Scopus Count
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