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Crystalline Nanorods as Possible Templates for the Synthesis of Amorphous Biosilica during Spicule Formation in Demospongiae

✍ Scribed by Enrico Mugnaioli; Filipe Natalio; Ute Schloßmacher; Xiaohong Wang; Werner E. G. Müller; Ute Kolb


Book ID
102790032
Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
776 KB
Volume
10
Category
Article
ISSN
1439-4227

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✦ Synopsis


Abstract

In tandem: High‐resolution TEM shows that during the initial stages of demosponge spicule formation, a primordial crystalline structure is formed within the axial filament. The recently developed electron diffraction tomography technique (ADT) reveals that the nanorods have a layered structure that matches smectitic phyllosilicates. These intracellular nanorods have been considered as precursors of mature spicules.magnified image

High‐resolution microscopy shows that, during the initial stages of demosponge spicule formation, a primordial crystalline structure is formed within the axial filament. The recently developed electron diffraction tomography technique reveals that the nanorods have a layered structure that matches smectitic phyllosilicates. These intracellular nanorods have been considered as precursors of mature spicules.