| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Yes, it turns: experimental evidence of pearl rotation during its formation
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| Autores: |
Gueguen, Yannick
Czorlich, Yann
Mastail, Max
Le Tohic, Bruno
Defay, Didier
Lyonnard, Pierre
Marigliano, Damien
Gauthier, Jean-pierre
Bari, Hubert
Lo, Cedrik
Chabrier, Sebastien
Le Moullac, Gilles
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| Data: |
2015-07
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| Ano: |
2015
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| Palavras-chave: |
Pearl oyster
Pearl rotation
Biomineralization
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| Resumo: |
Cultured pearls are human creations formed by inserting a nucleus and a small piece of mantle tissue into a living shelled mollusc, usually a pearl oyster. Although many pearl observations intuitively suggest a possible rotation of the nucleated pearl inside the oyster, no experimental demonstration of such a movement has ever been done. This can be explained by the difficulty of observation of such a phenomenon in the tissues of a living animal. To investigate this question of pearl rotation, a magnetometer system was specifically engineered to register magnetic field variations with magnetic sensors from movements of a magnetic nucleus inserted in the pearl oyster. We demonstrated that a continuous movement of the nucleus inside the oyster starts after a minimum of 40 days post-grafting and continues until the pearl harvest. We measured a mean angular speed of 1.27° min−1 calculated for four different oysters. Rotation variability was observed among oysters and may be correlated to pearl shape and defects. Nature's ability to generate so amazingly complex structures like a pearl has delivered one of its secrets.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
http://archimer.ifremer.fr/doc/00275/38598/37127.pdf
DOI:10.1098/rsos.150144
http://archimer.ifremer.fr/doc/00275/38598/
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| Editor: |
Royal Soc
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| Formato: |
application/pdf
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| Fonte: |
Royal Society Open Science (2054-5703) (Royal Soc), 2015-07 , Vol. 2 , N. 7 , P. 150144
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| Direitos: |
2015 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
info:eu-repo/semantics/openAccess
restricted use
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