Silica deposition in Demosponges: spiculogenesis in Crambe crambe

@article{riz2000SilicaDI,
  title={Silica deposition in Demosponges: spiculogenesis in Crambe crambe},
  author={Mar{\'i}a Jes{\'u}s {\'U}riz and Xavier Turon and Mikel A. Becerro},
  journal={Cell and Tissue Research},
  year={2000},
  volume={301},
  pages={299-309}
}
Abstract. Transmission electron-microscopy images coupled with dispersive X-ray analysis of the species Crambe crambe have provided information on the process of silica deposition in Demosponges. Sclerocytes (megasclerocytes) lie close to spicules or surround them at different stages of growth by means of long thin enveloping pseudopodia. Axial filaments occur free in the mesohyl, in close contact with sclerocytes, and are triangular in cross section, with an internal silicified core. The unit… 

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