Articulo
Role of extracellular matrix molecules in shell formation and structure
WORLDS POULTRY SCIENCE JOURNAL;
Worlds Poult. Sci. J.
Registro en:
0
D96F1030
D96F1030
WOS:000173509200002
0043-9339
Autor
Arias-Bautista, José
Fernández, María
Institución
Resumen
Avian eggshells are natural composite bioceramics containing organic and inorganic phases. The occurrence and role of particular collagens and proteoglycans in the eggshell and their pattern of secretion by the oviduct is discussed. While type X collagen, the main constituent of the shell membranes, functions to inhibit their mineralisation, mammillan, a mammillary keratan sulphate proteoglycan, is involved in nucleation of the first calcite crystals of the shell and ovoglycan, a unique dermatan sulphate proteoglycan, is involved in the growth of the crystalline palisade. Eggshell biomineralisation is effected by specialised oviduct cell populations in a defined topographically and temporally regulated process. 0 31 FONDEF 0 0 4 FONDEF 57