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New zonal structure and transition of the membrane to mammillae in the eggshell of chicken Gallus domesticus
Yunong Li;  Yang Li;  Shirong Liu;  Yang Tang;  Bing Mo;  Hui Zhou
2018
发表期刊Journal of Structural Biology
卷号203期号:2页码:162-169
摘要

Avian eggshell is a typical bio-engineered ceramics characterized by layer structures. These layers are categorized mainly by the form of crystalline calcite. Whether there exist other layer structures, how the membrane layer is transformed to the carbonate one, what form the carbonate takes after the transition. These questions remain to be clarified. Here we examine the eggshell of chicken Gallus domesticus by optical microscope, scanning electron microscope and transmission electron microscope. We find that there exists another layer structure defined by variation of organic matrices. The transition from the membrane to the mammillary cones is implemented through the calcium reserve assemblies or the mammillary cores. The integrity of the transitional structure was weakens as the reserved calcium is displaced, and loses completely in about 10 days of incubation. As the first deposited carbonate layer after the transition, the mammillary cones comprise amorphous calcium carbonate and clusters/assemblies of calcite crystallites the size about a nanometer, plus bubble pores extending preferentially in the lateral direction. Our results provide new insights into the structure and component of the avian eggshell, and may help decipher the constitution of the bio-ceramics in the perspective of material science.

关键词Amorphous Calcium Carbonate Crystalline Calcite Eggshell Structure Avian Egg Chicken
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/8821
专题环境地球化学国家重点实验室
作者单位1.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences. 99 Lincheng West Road, Guanshanhu District, Guiyang, Guizhou, 550081, China
2.Guiyang No.1 High School. 1 Xingzhu East Road, Guanshanhu District, Guiyang, Guizhou, 550081, China
3.Center of Lunar and Planetary Study, Institute of Geochemistry, Chinese Academy of Sciences. Guanshanhu District, Guiyang, Guizhou, 550081, China
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GB/T 7714
Yunong Li;Yang Li;Shirong Liu;Yang Tang;Bing Mo;Hui Zhou. New zonal structure and transition of the membrane to mammillae in the eggshell of chicken Gallus domesticus[J]. Journal of Structural Biology,2018,203(2):162-169.
APA Yunong Li;Yang Li;Shirong Liu;Yang Tang;Bing Mo;Hui Zhou.(2018).New zonal structure and transition of the membrane to mammillae in the eggshell of chicken Gallus domesticus.Journal of Structural Biology,203(2),162-169.
MLA Yunong Li;Yang Li;Shirong Liu;Yang Tang;Bing Mo;Hui Zhou."New zonal structure and transition of the membrane to mammillae in the eggshell of chicken Gallus domesticus".Journal of Structural Biology 203.2(2018):162-169.
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