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Tony Weaver

I too have noticed accumulations of silicon in bacillus spores. My work was with Unilever in the 1990`s using TEM/XRMA, and I first saw the phenomenon in B.cereus. Further work involving B.subtilis ( safer to work with ! ) showed accumulations of silicon in spores at different stages of development. Dormant spores showed approx 1:100 contained a high level of silicon ( they all contain silicon but in very small amouts). Heat activated spores showed an increase to 1:25 to be silicon rich. A heat activated sample left at ambient for 2 weeks
( i.e. germination may be taking place)the ratio of silicon rich spores was further increased to 1:10. Invariably the spores that were increased in size from the dormant dimentions were the also the ones to contain massive amounts of silicon.
The significance of all this still eludes me although I do have some thoughts on the subject.

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