Mineral phase in shell repair of Manila clam Venerupis philippinarum affected by brown ring disease. - Campus Mondial de la Mer Accéder directement au contenu
Article Dans Une Revue Diseases of Aquatic Organisms Année : 2011

Mineral phase in shell repair of Manila clam Venerupis philippinarum affected by brown ring disease.

Résumé

The mineral phase of shell repair in the Manila clam Venerupis philippinarum affected by brown ring disease (BRD) was characterised at various scales and at various stages of shell repair by confocal Raman microspectrometry and scanning electron microscopy. Spherulitic and quadrangular aragonite microstructures associated with polyene pigments were clearly observed. Von Kossa staining showed that at the beginning of shell repair, hemocytes are filled with insoluble calcium carbonate salts in all fluids and then are transported toward the extrapallial fluids and the repair sites. Our analyses suggest that after a Vibrio tapetis attack and BRD deposit some clams rapidly cover the deposit, resulting in a modification in the microstructure, which could be produced by the participation of both the mantle and hemocytes.
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hal-00574058 , version 1 (16-09-2021)

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Nolwenn Trinkler, Jean-François Bardeau, Frédéric Marin, Maylis Labonne, Aurélie Jolivet, et al.. Mineral phase in shell repair of Manila clam Venerupis philippinarum affected by brown ring disease.. Diseases of Aquatic Organisms, 2011, 93 (2), pp.149-162. ⟨10.3354/dao02288⟩. ⟨hal-00574058⟩
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