Amorphous calcium carbonate transforms into calcite during sea urchin larval spicule growth

被引：693

作者：

Beniash, E

Aizenberg, J

Addadi, L

Weiner, S

机构：

[1] Department of Structural Biology, Weizmann Institute of Science

来源：

PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES | 1997年 / 264卷 / 1380期

关键词：

D O I：

10.1098/rspb.1997.0066

中图分类号：

Q [生物科学];

学科分类号：

07 [理学]; 0710 [生物学]; 09 [农学];

摘要：

Sea urchin larvae form an endoskeleton composed of a pair of spicules. For more than a century it has been stated that each spicule comprises a single crystal of the CaCO3 mineral, calcite. We show that an additional mineral phase, amorphous calcium carbonate, is present in the sea urchin larval spicule, and that this inherently unstable mineral transforms into calcite with time. This observation significantly changes our concepts of mineral formation in this well-studied organism.

引用

页码：461 / 465

页数：5

共 22 条

[1]

Stabilization of amorphous calcium carbonate by specialized macromolecules in biological and synthetic precipitates [J].