ArticleScientific reports2017
In vivo pH measurement at the site of calcification in an octocoral.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 46 citations in OpenAlex.
- Micro-CT analysis reveals porosity driven growth banding in Caribbean coral Siderastrea siderea.Scientific reports · 2025Article
- Stylasterid corals build aragonite skeletons in undersaturated water despite low pH at the site of calcification.Scientific reports · 2022Article
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- Discovery and characterization of HeLife · 2021Article
- Mapping coral calcification strategies from in situ boron isotope and trace element measurements of the tropical coral Siderastrea siderea.Scientific reports · 2021Article
- Rapid deep ocean deoxygenation and acidification threaten life on Northeast Pacific seamounts.Global change biology · 2020Article
- A high biodiversity mitigates the impact of ocean acidification on hard-bottom ecosystems.Scientific reports · 2020Article
- Ubiquitous macropinocytosis in anthozoans.eLife · 2020Article
- Article
- Phosphate Enrichment Hampers Development of Juvenile Acropora digitifera Coral by Inhibiting Skeleton Formation.Marine biotechnology (New York, N.Y.) · 2019Article
- Article
- Activation Profile Analysis of CruCA4, an α-Carbonic Anhydrase Involved in Skeleton Formation of the Mediterranean Red Coral, Corallium rubrum.Molecules (Basel, Switzerland) · 2017Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Calcareous octocorals are ecologically important calcifiers, but little is known about their biomineralization physiology, relative to scleractinian corals. Many marine calcifiers promote calcification by up-regulating pH at calcification sites against the surrounding seawater. Here, we investigated pH in the red octocoral Corallium rubrum which forms sclerites and an axial skeleton. To achieve this, we cultured microcolonies on coverslips facilitating microscopy of calcification sites of sclerites and axial skeleton. Initially we conducted extensive characterisation of the structural arrangement of biominerals and calcifying cells in context with other tissues, and then measured pH by live tissue imaging. Our results reveal that developing sclerites are enveloped by two scleroblasts and an extracellular calcifying medium of pH 7.97 ± 0.15. Similarly, axial skeleton crystals are surrounded by cells and a calcifying medium of pH 7.89 ± 0.09. In both cases, calcifying media are more alkaline compared to calcifying cells and fluids in gastrovascular canals, but importantly they are not pH up-regulated with respect to the surrounding seawater, contrary to what is observed in scleractinians. This points to a potential vulnerability of this species to decrease in seawater pH and is consistent with reports that red coral calcification is sensitive to ocean acidification.
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