Abstract
Sea urchin's teeth from four families of order Echinoida and from orders Temnopleuroida, Arbacioida and Cidaroida were studied with synchrotron X-ray diffraction. The high and very high Mg calcite phases of the teeth, i.e. the first and second stage mineral constituents, respectively, have the same crystallographic orientations. The co-orientation of first and second stage mineral, which the authors attribute to epitaxy, extends across the phylogenic width of the extant regular sea urchins and demonstrates that this is a primitive character of this group. The range of compositions Δx for the two phases of Ca1-xMgxCO3 is about 0.20 or greater and is consistent with a common biomineralization process.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 48-52 |
| Number of pages | 5 |
| Journal | Connective tissue research |
| Volume | 55 |
| Issue number | SUPPL. 1 |
| DOIs | |
| State | Published - Jan 1 2014 |
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Keywords
- Biomineralization
- Calcite
- Sea urchin
- Synchrotron radiation
- Teeth
- X-ray diffraction
ASJC Scopus subject areas
- Rheumatology
- Biochemistry
- Orthopedics and Sports Medicine
- Molecular Biology
- Cell Biology
Cite this
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Calcite orientations and composition ranges within teeth across Echinoidea. / Stock, Stuart R; Ignatiev, Konstantin; Lee, Peter L.; Almer, Jonathan D.
In: Connective tissue research, Vol. 55, No. SUPPL. 1, 01.01.2014, p. 48-52.Research output: Contribution to journal › Article
TY - JOUR
T1 - Calcite orientations and composition ranges within teeth across Echinoidea
AU - Stock, Stuart R
AU - Ignatiev, Konstantin
AU - Lee, Peter L.
AU - Almer, Jonathan D.
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Sea urchin's teeth from four families of order Echinoida and from orders Temnopleuroida, Arbacioida and Cidaroida were studied with synchrotron X-ray diffraction. The high and very high Mg calcite phases of the teeth, i.e. the first and second stage mineral constituents, respectively, have the same crystallographic orientations. The co-orientation of first and second stage mineral, which the authors attribute to epitaxy, extends across the phylogenic width of the extant regular sea urchins and demonstrates that this is a primitive character of this group. The range of compositions Δx for the two phases of Ca1-xMgxCO3 is about 0.20 or greater and is consistent with a common biomineralization process.
AB - Sea urchin's teeth from four families of order Echinoida and from orders Temnopleuroida, Arbacioida and Cidaroida were studied with synchrotron X-ray diffraction. The high and very high Mg calcite phases of the teeth, i.e. the first and second stage mineral constituents, respectively, have the same crystallographic orientations. The co-orientation of first and second stage mineral, which the authors attribute to epitaxy, extends across the phylogenic width of the extant regular sea urchins and demonstrates that this is a primitive character of this group. The range of compositions Δx for the two phases of Ca1-xMgxCO3 is about 0.20 or greater and is consistent with a common biomineralization process.
KW - Biomineralization
KW - Calcite
KW - Sea urchin
KW - Synchrotron radiation
KW - Teeth
KW - X-ray diffraction
UR - http://www.scopus.com/inward/record.url?scp=84906692030&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84906692030&partnerID=8YFLogxK
U2 - 10.3109/03008207.2014.923865
DO - 10.3109/03008207.2014.923865
M3 - Article
VL - 55
SP - 48
EP - 52
JO - Connective Tissue Research
JF - Connective Tissue Research
SN - 0300-8207
IS - SUPPL. 1
ER -