Sea Urchin Spine Calcite Forms via a Transient Amorphous Calcium Carbonate Phase

Science ◽  
2004 ◽  
Vol 306 (5699) ◽  
pp. 1161-1164 ◽  
Author(s):  
Y. Politi
Keyword(s):  
Calcium Carbonate ◽  
Sea Urchin ◽  
Amorphous Calcium Carbonate ◽  
Carbonate Phase ◽  
Sea Urchin Spine

scholarly journals On the Relation of Amorphous Calcium Carbonate and the Macromechanical Properties of Sea Urchin Spines

2020 ◽  
Vol 22 (4) ◽  
pp. 1900922 ◽  
Author(s):  
Christoph Lauer ◽  
Sebastian Haußmann ◽  
Patrick Schmidt ◽  
Carolin Fischer ◽  
Doreen Rapp ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Sea Urchin ◽  
Amorphous Calcium Carbonate ◽  
Sea Urchin Spines

scholarly journals Transformation mechanism of amorphous calcium carbonate into calcite in the sea urchin larval spicule

2008 ◽  
Vol 105 (45) ◽  
pp. 17362-17366 ◽  
Author(s):  
Y. Politi ◽  
R. A. Metzler ◽  
M. Abrecht ◽  
B. Gilbert ◽  
F. H. Wilt ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Sea Urchin ◽  
Amorphous Calcium Carbonate ◽  
Transformation Mechanism

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

1997 ◽  
Vol 264 (1380) ◽  
pp. 461-465 ◽  
Author(s):  
Elia Beniash ◽  
Joanna Aizenberg ◽  
Lia Addadi ◽  
Stephen Weiner
Keyword(s):  
Calcium Carbonate ◽  
Sea Urchin ◽  
Amorphous Calcium Carbonate

scholarly journals Interplay between Calcite, Amorphous Calcium Carbonate, and Intracrystalline Organics in Sea Urchin Skeletal Elements

2018 ◽  
Vol 18 (4) ◽  
pp. 2189-2201 ◽  
Author(s):  
Marie Albéric ◽  
Elad N. Caspi ◽  
Mathieu Bennet ◽  
Widad Ajili ◽  
Nadine Nassif ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Sea Urchin ◽  
Amorphous Calcium Carbonate

Calcium carbonate bio-precipitation in counter-diffusion systems using the soluble organic matrix from nacre and sea-urchin spine

2014 ◽  
Vol 26 (4) ◽  
pp. 523-535 ◽  
Author(s):  
Maria Sancho-Tomás ◽  
Simona Fermani ◽  
Jaime Gómez-Morales ◽  
Giuseppe Falini ◽  
Juan Manuel García-Ruiz
Keyword(s):  
Calcium Carbonate ◽  
Sea Urchin ◽  
Organic Matrix ◽  
Diffusion Systems ◽  
Sea Urchin Spine ◽  
Counter Diffusion

The Fine Structure of Calcoblasts in the Regenerating Sea Urchin Spine

1972 ◽  
Vol 30 ◽  
pp. 162-163
Author(s):  
Barry M. Heatfield ◽  
Dorothy F. Travis
Keyword(s):  
Electron Microscopy ◽  
Fine Structure ◽  
Calcium Carbonate ◽  
Sea Urchin ◽  
Basal Lamina ◽  
Strongylocentrotus Purpuratus ◽  
Extracellular Fluid ◽  
Cell Types ◽  
Thin Sections ◽  
Sea Urchin Spine

The endoskeleton of echinoderms is composed of fenestrated calcium carbonate (calcite) permeated by interconnecting channels filled with a variety of cell-types and extracellular fluid containing collagen fibrils. To identify and characterize skeletogenic cells and explore the mechanism of skeleton growth in echinoderms, tissues of regenerating spines of the sea urchin Strongylocentrotus purpuratus were examined by electron microscopy.The tip of the young regenerate is composed of two layers of tissue: an outer epidermis and an inner calcified dermis separated by a thin basal lamina (Fig. 1). In the apical dermis the skeleton consists of longitudinally oriented microspines interconnected by horizontal calcite bridges. During preparation of thin sections, skeletal mineral was lost, leaving a hole, indicated by (ms) in Figs. 1, 2, and 4.

scholarly journals Growth and regrowth of adult sea urchin spines involve hydrated and anhydrous amorphous calcium carbonate precursors

2019 ◽  
Vol 1 ◽  
pp. 100004 ◽  
Author(s):  
Marie Albéric ◽  
Cayla A. Stifler ◽  
Zhaoyong Zou ◽  
Chang-Yu Sun ◽  
Christopher E. Killian ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Sea Urchin ◽  
Amorphous Calcium Carbonate ◽  
Sea Urchin Spines
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