alexa Got silicon? The non-essential beneficial plant nutrient.
Environmental Sciences

Environmental Sciences

Journal of Bioremediation & Biodegradation

Author(s): Richmond KE, Sussman M

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Abstract Research on a possible nutritional role for the element silicon has been hampered by the diverse beneficial effects that it has on monocots and dicots, and the subsequent difficulties in focusing studies on a single genetic model system. Although deemed a non-essential nutrient for the majority of plants, the benefits of silicon include increasing pest and pathogen resistance, drought and heavy metal tolerance, and the quality and yield of agricultural crops. Although the pathways and molecular mechanisms by which silicon is absorbed and deposited in plants are still unclear, recent progress has been achieved through the use of rice mutants that are deficient in silicon uptake. Additionally, the application of electron-energy-loss spectroscopy (EELS) allows one to determine the composition of silica deposits conclusively. Thereby shedding light upon the role of silicon in heavy metal tolerance. With the complete sequence of the genomes for a dicot (Arabidopsis) and a monocot (rice) available for large-scale genetic analysis, the future bodes well for a more complete understanding of the biological role of silicon and its mode of transport into and through plants.
This article was published in Curr Opin Plant Biol and referenced in Journal of Bioremediation & Biodegradation

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