Dynamics of sheet nacre formation in bivalves.
J Struct Biol
; 165(3): 190-5, 2009 Mar.
Article
en En
| MEDLINE
| ID: mdl-19121399
ABSTRACT
Formation of nacre (mother-of-pearl) is a biomineralization process of fundamental scientific as well as industrial importance. However, the dynamics of the formation process is still not understood. Here, we use scanning electron microscopy and high spatial resolution ion microprobe depth-profiling to image the full three-dimensional distribution of organic materials around individual tablets in the top-most layer of forming nacre in bivalves. Nacre formation proceeds by lateral, symmetric growth of individual tablets mediated by a growth-ring rich in organics, in which aragonite crystallizes from amorphous precursors. The pivotal role in nacre formation played by the growth-ring structure documented in this study adds further complexity to a highly dynamical biomineralization process.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Carbonato de Calcio
/
Estructuras Animales
/
Pinctada
Límite:
Animals
Idioma:
En
Revista:
J Struct Biol
Asunto de la revista:
BIOLOGIA MOLECULAR
Año:
2009
Tipo del documento:
Article
País de afiliación:
Francia