The controversies of silicon’s role in plant biology
New Phytologist | Wiley-Blackwell Publishing | Published : 2019
Silicon (Si) is not classified as an essential plant nutrient, and yet numerous reports have shown its beneficial effects in a variety of species and environmental circumstances. This has created much confusion in the scientific community with respect to its biological roles. Here, we link molecular and phenotypic data to better classify Si transport, and critically summarize the current state of understanding of the roles of Si in higher plants. We argue that much of the empirical evidence, in particular that derived from recent functional genomics, is at odds with many of the mechanistic assertions surrounding Si's role. In essence, these data do not support reports that Si affects a wide ..View full abstract
Awarded by JSPS KAKENHI
This work was supported by a Postdoctoral Fellowship to D.C. and grants to R.R.B from the Natural Sciences and Engineering Research Council of Canada (NSERC). It was further supported by the University of Melbourne (to H.J.K.) and grants from the Fonds de Recherche du Quebec-Nature et Technologies (FRQNT) to R.R.B., the Grant-in-Aid for Specially Promoted Research (JSPS KAKENHI Grant Number 16H06296) to J.F.M. and the Canada Research Chairs (CRC) Program to R.R.B. The authors also thank Malcom Keeping for his critical review of the manuscript.