Our collegue Étienne Laliberté has an article for which he is co-author just published in the prestigious magazine Science. The article, titled Plants sustain the terrestrial silicon cycle during ecosystem retrogression, stems from research done in Autralia on soil chronosequence and the development of ecosystems. For this particular article, the authors were interested in the global silicon cycle and the control of vegetation over it.
Read: the article, a perspective on it as well as an article in UdeM Nouvelles (in French).