Some aspects of silica deposition in lithistid demosponge desmas

  title={Some aspects of silica deposition in lithistid demosponge desmas},
  author={Andrzej Pisera},
  journal={Microscopy Research and Technique},
  • Andrzej Pisera
  • Published 1 November 2003
  • Geology
  • Microscopy Research and Technique
Transmitted light microscope and SEM observations of various growth stages, including very young forms, of lithistid demosponge spicules called desmas provided a wealth of new observations on silica deposition in desmas of most lithistid demosponge groups. In typical (pachastrellid) demosponges a basic feature of silica deposition in young spicules is the formation of silica granules (100–160 nm in diameter) deposited in more or less regular concentric layers. Further growth stages in typical… 

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  • J. ChaK. Shimizu D. Morse
  • Chemistry
    Proceedings of the National Academy of Sciences of the United States of America
  • 1999
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