PMID: 6538353Jan 1, 1984Paper

Fine structure of the chitin-protein system in the crab cuticle

Tissue & Cell
M M Giraud-Guille

Abstract

The fine structure of the organic matrix of the shore crab cuticle (Carcinus maenas L.), observed in transmission electron microscopy, reveals three different levels of organization of the chitin-protein complex. The highest level corresponds to the 'twisted plywood' organization described by Bouligand (1972). Horizontal microfibrils, parallel to the cuticle plane, rotate progressively from one level to another. When viewed in oblique section this structure gives superimposed series of nested arcs, visible in light microscopy or at the lowest magnifications of the electron microscope, in all the chitin-protein layers. At the highest magnifications of the electron microscope and with the best resolution, when the ultrathin sections are exactly transverse to the microfibril, a constant pattern can be observed which consists of rods transparent to electrons, which are embedded in an electron-opaque matrix. In cross-section, these rods often form more or less hexagonal arrays. We call a microfibril one rod and the adjacent opaque material, and question the usual interpretation of the microfibril molecular structure. Between these two levels of organization, there is an intermediate level, which corresponds to the grouping of microf...Continue Reading

References

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Citations

Apr 1, 1994·Microscopy Research and Technique·M M Giraud-Guille
Jan 1, 1990·Tissue & Cell·S Hunt, A El Sherief
May 1, 1993·Journal of Cataract and Refractive Surgery·C BudoF Gaill
May 8, 2007·Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·Carolina PriesterD Mark Gay
Apr 28, 2012·Nanoscale·Shinsuke Ifuku, Hiroyuki Saimoto
May 8, 2014·BioMed Research International·Takeshi IkedaYoshihiko Hayashi
May 8, 1998·Bioscience, Biotechnology, and Biochemistry·T YamagamiM Ishiguro
Oct 5, 2014·Materials Science & Engineering. C, Materials for Biological Applications·Devendra Verma, Vikas Tomar
Apr 27, 2012·ZooKeys·Bastian H M Seidl, Andreas Ziegler
May 22, 2013·Proceedings of the National Academy of Sciences of the United States of America·Anthony J GiuffrePatricia M Dove
Jan 18, 2016·Micron : the International Research and Review Journal for Microscopy·Rakkiyappan ChandranDennis LaJeunesse
Dec 22, 2015·Journal of Structural Biology·Anas AyariKarima Nasri-Ammar
May 11, 2010·Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics·Yana YudkovskiMoshe Tom
Dec 15, 2015·Materials Science & Engineering. C, Materials for Biological Applications·Steven E NalewayJoanna McKittrick
Feb 27, 2008·Acta Biomaterialia·Po-Yu ChenMarc André Meyers
Jul 17, 2008·Tissue & Cell·L Besseau, Y Bouligand
Aug 19, 2014·Carbohydrate Polymers·Ngesa Ezekiel MushiLars A Berglund
Jun 18, 2014·Journal of Structural Biology·Francisca I AlagbosoAndreas Ziegler
Oct 1, 1994·Journal of Morphology·W H Fahrenbach
Jun 8, 2017·Soft Matter·Michel Mitov
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Nov 22, 2018·Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics·Xiaowu ChenXugan Wu

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