Calcite orientations and composition ranges within teeth across Echinoidea

Stuart R Stock; Konstantin Ignatiev; Peter L. Lee; Jonathan D. Almer

doi:10.3109/03008207.2014.923865

Calcite orientations and composition ranges within teeth across Echinoidea

Stuart R Stock^*, Konstantin Ignatiev, Peter L. Lee, Jonathan D. Almer

^*Corresponding author for this work

Cell & Developmental Biology

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

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	https://doi.org/10.3109/03008207.2014.923865
State	Published - 2014

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

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@article{94febabd41be45ed959aa46f19932481,

title = "Calcite orientations and composition ranges within teeth across Echinoidea",

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.",

keywords = "Biomineralization, Calcite, Sea urchin, Synchrotron radiation, Teeth, X-ray diffraction",

author = "Stock, {Stuart R} and Konstantin Ignatiev and Lee, {Peter L.} and Almer, {Jonathan D.}",

note = "Funding Information: The research was partially supported by NIDCR grant DE001374 (to Prof. Arthur Veis). Use of the Advanced Photon Source was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. The authors have no financial interest in any of the results or interpretations reported in this article.",

year = "2014",

doi = "10.3109/03008207.2014.923865",

language = "English (US)",

volume = "55",

pages = "48--52",

journal = "Connective Tissue Research",

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number = "SUPPL. 1",

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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.

N1 - Funding Information: The research was partially supported by NIDCR grant DE001374 (to Prof. Arthur Veis). Use of the Advanced Photon Source was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. The authors have no financial interest in any of the results or interpretations reported in this article.

PY - 2014

Y1 - 2014

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

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