The junction zone: Initial site of mineralization in radula teeth of the chiton Cryptoplax striata (Mollusca: Polyplacophora)

D.J. Macey; L.R. Brooker

doi:10.1002/(SICI)1097-4687(199610)230:1<33::AID-JMOR3>3.0.CO;2-O

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The junction zone: Initial site of mineralization in radula teeth of the chiton Cryptoplax striata (Mollusca: Polyplacophora)

Journal article

Peer reviewed

The junction zone: Initial site of mineralization in radula teeth of the chiton Cryptoplax striata (Mollusca: Polyplacophora)

D.J. Macey and L.R. Brooker

Journal of Morphology, Vol.230(1), pp.33-42

1996

DOI: https://doi.org/10.1002/(SICI)1097-4687(199610)230:1<33::AID-JMOR3>3.0.CO;2-O

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Abstract

Elemental composition and distribution in individual teeth of the whole radula of the chiton Cryptoplax striata were analyzed using energy-dispersive spectroscopy. Both the element deposited and its position within the tooth vary according to the stage of mineralization. The initial site of mineralization is the junction zone, the region between the tooth cusp and base. In this region, the first element to be deposited is iron, followed by phosphorus and then calcium. Iron deposition next commences in the tooth cusp cap, where it proceeds rapidly, being virtually complete within 12 tooth rows. By contrast, mineralization in the core of the tooth cusp does not commence until well down the radula and consists initially of iron and phosphorus with the addition of a small amount of calcium 6 rows later. While mineralization in the tooth base commences early in radula development, it continues right through to the fully mature end of the radula. A number of minor elements are also found at various stages of mineralization. The data obtained have been used to construct a schematic of the progression of mineralization along the length of the radula.

Details

Title: The junction zone: Initial site of mineralization in radula teeth of the chiton Cryptoplax striata (Mollusca: Polyplacophora)
Authors/Creators: D.J. Macey (Author/Creator) - Murdoch University
L.R. Brooker (Author/Creator) - Murdoch University
Publication Details: Journal of Morphology, Vol.230(1), pp.33-42
Publisher: Wiley-Blackwell
Identifiers: 991005543723407891
Copyright: © 1996 Wiley-Liss, Inc.
Murdoch Affiliation: School of Biological and Environmental Sciences
Language: English
Resource Type: Journal article

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Citation topics: 2 Chemistry; 2.165 Nanofibers, Scaffolds & Fabrication; 2.165.1082 Calcium Carbonate Crystallization
Web Of Science research areas: Anatomy & Morphology
ESI research areas: Biology & Biochemistry