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合浦珠母贝贝壳珍珠层EDTA可溶性基质蛋白对无定形碳酸钙稳定性的影响
林慧娟¹, 方东¹, 向量¹, 谢莉萍¹, 王洪钟¹, 张贵友¹, 麻彩萍¹, 张荣庆¹
清华大学生命科学学院

摘要:

通过红外光谱、扫描电镜、能谱等方法探讨了合浦珠母贝贝壳珍珠层EDTA 可溶性基质蛋白(ESM)对无定形碳酸钙(ACC)晶型转化的影响。试验结果显示, 合浦珠母贝贝壳珍珠层ESM 在镁离子存在的条件下能够显著抑制ACC 的转化, 并减少最终诱导形成的方解石中的镁离子含量。同时, 珍珠层ESM 具有调节方解石晶体晶貌的作用。

关键词: 生物矿化 EDTA 可溶性基质蛋白无定形碳酸钙晶型转化

DOI：10.11759/hykx20130412002

分类号:

基金项目:国家自然科学基金(联合资助基金项目)(U0831001)

The effect of nacreous EDTA soluble matrix protein of Pinctada fucata on the stabilization of amorphous calcium carbonate

Abstract:

We investigated the effects of EDTA soluble matrix proteins (ESM) from nacreous layer of the shell of Pinctada fucata on the transformation of ACC using a variety of testing methods like FTIR, SEM and EDS. We found that nacreous ESM could inhibit ACC transformation in the presence of magnesium and reduce the content of magnesium in the formed calcite. Moreover, the morphology of the calcite was controlled by nacreous ESM during ACC transformation.

Key words: Biomineralization EDTA soluble matrix protein Amorphous calcium carbonate transformation

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