Biomineralization of the Spicules of Sea Urchin Embryos

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概要

• 論文の詳細を見る

• The formation of calcareous skeletal elements by various echinoderms, especially sea urchins, offers a splendid opportunity to learn more about some processes involved in the formation of biominerals. The spicules of larvae of euechinoids have been the focus of considerable work, including their developmental origins. The spicules are composed of a single optical crystal of high magnesium calcite and variable amounts of amorphous calcium carbonate. Occluded within the spicule is a proteinaceous matrix, most of which is soluble ; this matrix constitutes about 0.1% of the mass. The spicules are also enclosed by an extracellular matrix and are almost completely surrounded by cytoplasmic cords. The spicules are deposited by primary mesenchyme cells (PMCs), which accumulate calcium and secrete calcium carbonate. A number of proteins specific, or highly enriched, in PMCs, have been cloned and studied. Recent work supports the hypothesis that proteins found in the extracellular matrix of the spicule are important for biomineralization.

• 社団法人日本動物学会の論文
• 2002-03-25

著者

• Wilt F

  Dept. Of Molecular Cell Biology 142 Lsa Bldg. University Of California

• Wilt Fred

  Dept. of Molecular Cell Biology 142 LSA Bldg. University of California

関連論文

• Biomineralization of the Spicules of Sea Urchin Embryos

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