Silicic acid is absorbed by plants to be continuously transformed into soluble polymers. Soluble silicon has been found within the cell, in the cytosol (hyaloplasm), in chloroplastic membranes and also in association with RNA and DNA.
This information suggests that Silicon may have a number of intracellular action sites which would explain its stimulating properties in plant resistance to disease.
The hypothesis of the mechanical berries formulated by Dr. Yoshida suggests that a cuticle barrier - Silicate is formed in the outer cell wall that helps to stop the entrance of infections to the epidermal cell. Another action is performed through phytoalexins, which are low molecular weight antimicrobial components synthesized by plants in response to pathogenic attacks or non-biological stressors.