EGU2020-15907
https://doi.org/10.5194/egusphere-egu2020-15907
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Transpiration and transporters: teasing apart passive and active transport of plant silicon

Julia Cooke1 and Joanna Carey2
Julia Cooke and Joanna Carey
  • 1The Open University, School of Environment, Earth and Ecosystem Sciences, Milton Keynes, United Kingdom of Great Britain and Northern Ireland (julia.cooke@open.ac.uk)
  • 2Babson College, Division of Math & Science, Wellesley, Massachusetts, United States of America.

All plants contain some silicon (Si), but some species take it up passively through the transpiration stream while others additionally actively accumulate Si by producing transporters. Here, we review the literature, both qualitatively and quantitatively, to investigate the importance of transpiration for Si uptake across diverse plant groups with different accumulation capacities.  We will use variation among species in terms of phylogeny, habitat (e.g. aquatic vs. terrestrial), and environmental conditions (e.g. water or nutrient stress) to tease apart the roles of transporters and transpiration in controlling rates of Si accumulation, and make use of published manipulative experiments to explore how Si availability impacts the importance of these two uptake mechanisms.

How to cite: Cooke, J. and Carey, J.: Transpiration and transporters: teasing apart passive and active transport of plant silicon, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-15907, https://doi.org/10.5194/egusphere-egu2020-15907, 2020

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