Articles | Volume 17, issue 24
https://doi.org/10.5194/bg-17-6475-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-17-6475-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Dec 2020
Research article |
| 22 Dec 2020
| 22 Dec 2020
Silicon uptake and isotope fractionation dynamics by crop species
GFZ German Research Centre for Geosciences, Potsdam, 14473, Germany
Rainer Remus
Working Group “Isotope Biogeochemistry & Gas Fluxes”, Leibniz Centre for Agricultural Landscape Research (ZALF),
Müncheberg, 15374, Germany
Michael Sommer
Working Group “Silicon Biogeochemistry”, Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg, 15374, Germany
Institute of Environmental Science and Geography, University of
Potsdam, Potsdam, 14476, Germany
Jürgen Augustin
Working Group “Isotope Biogeochemistry & Gas Fluxes”, Leibniz Centre for Agricultural Landscape Research (ZALF),
Müncheberg, 15374, Germany
Danuta Kaczorek
Working Group “Silicon Biogeochemistry”, Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg, 15374, Germany
Friedhelm von Blanckenburg
GFZ German Research Centre for Geosciences, Potsdam, 14473, Germany
Institute of Geological Science, Freie Universität Berlin, Berlin,
12249, Germany
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Short summary
Silicon is taken up by some plants to increase structural stability and to develop stress resistance and is rejected by others. To explore the underlying mechanisms, we used the stable isotopes of silicon that shift in their relative abundance depending on the biochemical transformation involved. On species with a rejective (tomato, mustard) and active (wheat) uptake mechanism, grown in hydroculture, we found that the transport of silicic acid is controlled by the precipitation of biogenic opal.
Silicon is taken up by some plants to increase structural stability and to develop stress...
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