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Minerals in the pre-settled coral Stylophora pistillata crystallize via protein and ion changes
Akiva, A.; Neder, M.; Kahil, K.; Gavriel, R.; Pinkas, I.; Goobes, G.; Mass, T. (2018). Minerals in the pre-settled coral Stylophora pistillata crystallize via protein and ion changes. Nature Comm. 9(1): 9 pp. https://hdl.handle.net/10.1038/s41467-018-04285-7
In: Nature Communications. Nature Publishing Group: London. ISSN 2041-1723; e-ISSN 2041-1723, more
Related to:
DeCarlo, T.M. (2018). Characterizing coral skeleton mineralogy with Raman spectroscopy. Nature Comm. 9(1): 3. https://hdl.handle.net/10.1038/s41467-018-07601-3, more
Peer reviewed article  

Available in  Authors 

Authors  Top 
  • Akiva, A.
  • Neder, M.
  • Kahil, K.
  • Gavriel, R.
  • Pinkas, I.
  • Goobes, G.
  • Mass, T.

Abstract
    Aragonite skeletons in corals are key contributors to the storage of atmospheric CO2 worldwide. Hence, understanding coral biomineralization/calcification processes is crucial for evaluating and predicting the effect of environmental factors on this process. While coral biomineralization studies have focused on adult corals, the exact stage at which corals initiate mineralization remains enigmatic. Here, we show that minerals are first precipitated as amorphous calcium carbonate and small aragonite crystallites, in the pre-settled larva, which then evolve into the more mature aragonitic fibers characteristic of the stony coral skeleton. The process is accompanied by modulation of proteins and ions within these minerals. These findings may indicate an underlying bimodal regulation tactic adopted by the animal, with important ramification to its resilience or vulnerability toward a changing environment.

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