Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/25009
Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Aragonite prism-nacre interface in freshwater mussels Anodonta anatina (Linnaeus, 1758) and Anodonta cygnea (L. 1758)
Authors: Freer, Andy
Greenwood, Daniel
Chung, Peter
Pannell, Claire L
Cusack, Maggie
Contact Email: maggie.cusack@stir.ac.uk
Issue Date: Jan-2010
Citation: Freer A, Greenwood D, Chung P, Pannell CL & Cusack M (2010) Aragonite prism-nacre interface in freshwater mussels Anodonta anatina (Linnaeus, 1758) and Anodonta cygnea (L. 1758), Crystal Growth and Design, 10 (1), pp. 344-347.
Abstract: Electron backscatter diffraction is used to characterize the transition interface between aragonite prisms and nacre in two species of freshwater molluscs, Anodonta anatina (Linnaeus, 1758) and Anodonta cygnea (L. 1758). In the duck mussel, Anodonta anatina, the shell thickness is comprised mainly of nacre with only a thin outer prismatic layer, whereas in the swan mussel, A. cygnea, the shell comprises a greater thickness of aragonite prisms relative to the nacreous layer. In A. anatina, the prism-nacre interface is flat and featureless. In A. cygnea, the nacre below the base of the prisms is characterized by distinct concave footholds. In both species, the c-axis of aragonite nanogranules comprising the prisms is parallel with the prism length. This crystallographic orientation, with the c-axis perpendicular to the shell exterior, occurs in the nacreous layer and thus is conserved throughout the shell thickness. In A. cygnea alternate prisms have a crystallographic orientation with the c-axis deviating from the prism long axis by approximately 20 deg. The initial nacreous layer adopts the crystallographic orientation of the preceding prisms and subsequent nacreous laminae are oriented in register with the bulk nacre. This is consistent with the hypothesis that nacre evolved through horizontal partitioning of prisms. © 2009 American Chemical Society.
DOI Link: http://dx.doi.org/10.1021/cg901265x
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.

Files in This Item:
File Description SizeFormat 
cg901265x.pdf2.76 MBAdobe PDFUnder Embargo until 31/12/2999     Request a copy

Note: If any of the files in this item are currently embargoed, you can request a copy directly from the author by clicking the padlock icon above. However, this facility is dependent on the depositor still being contactable at their original email address.



This item is protected by original copyright



Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

If you believe that any material held in STORRE infringes copyright, please contact library@stir.ac.uk providing details and we will remove the Work from public display in STORRE and investigate your claim.