The objective of this review is to summarize our current knowledge about skeletogenesis in the sea urchin embryo
First-pass extracted concept
sea urchin embryonic skeletogenesis
Candidate: concept label1 source documents4 linked claims
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Evidence Snippets
Supporting Sources
Linked Claims
Primary mesenchyme cells are responsible for assembly of the sea urchin embryonic skeleton and originate from a subset of micromeres formed in the 16-cell embryo.
Quoted textsource-backed
the cells responsible for assembly of the skeleton are primary mesenchyme cells and that they originate from a subset of the micromeres formed in the 16-cell embryo
Sea urchin embryonic spicules are composed of calcite with a small amount of magnesium carbonate.
Quoted textsource-backed
The inorganic component of the spicules is the mineral calcite, CaCO3, plus a small amount (5 %) of MgCO3
The morphology of the spicule is dictated by the syncytial structure produced by primary mesenchyme cells rather than by the arrangement of microcrystals alone.
Quoted textsource-backed
such microcrystals do not define the overall shape of the spicule. Rather, the morphology of the spicule is dictated by the syncytial structure produced by the primary mesenchyme cells
The sea urchin embryo provides a system in which biomineralization can be investigated in a well-defined single cell type, the primary mesenchyme cell.
Quoted textsource-backed
this biological system, in which the biomineralization process can be investigated in a well-defined, single cell type (the primary mesenchyme cell)