02315naa a2200313 a 450000100080000000500110000800800410001902400330006010000170009324501530011026000090026350004530027252009560072565300140168165300310169565300240172665300110175065300190176165300240178065300140180465300160181870000190183470000150185370000150186870000150188370000150189870000230191377300650193610641462023-05-22       2023    bl uuuu     u00u1 u    #d7 a10.5061/dryad.6m905qg4p2DOI1 aJOHNSON, S.N  aElevated atmospheric CO2 suppresses silicon accumulation and exacerbates endophyte reductions in plant phosphorus. [Dataset].h[electronic resource]  c2023  aArticle history: Publication date 12 April 12 2023. -- Correspondence author: Johnson, S.N.; Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia; email:scott.johnson@westernsydney.edu.au -- Funding: Australian Research Council, Award: FT170100342 -- License: This work is licensed under a CC0 1.0 Universal (CC0 1.0) Public Domain Dedication license. (https://creativecommons.org/publicdomain/zero/1.0/ ) --  aMany temperate grasses are both hyper-accumulators of silicon (Si) and hosts of Epichloë fungal endophytes, functional traits which may alleviate environmental stresses such as herbivore attack. Si accumulation and endophyte infection may operate synergistically, but this has not been tested in a field setting, nor in the context of changing environmental conditions. Predicted increases in atmospheric CO2 concentrations can affect both Si accumulation and endophyte function, but these have not been studied in combination. We investigated how elevated atmospheric CO2 (eCO2), Si supplementation, endophyte-presence and insect herbivory impacted plant growth, stoichiometry (C, N, P and Si), leaf gas exchange (rates of photosynthesis, stomatal conductance, transpiration rates) and endophyte production of anti-herbivore defences (alkaloids) of an important pasture grass (tall fescue; Lolium arundinaceum) in the field. Copyright (c) 2023 Dryad  aAlkaloids  aAtmospheric carbon dioxide  aBiological sciences  aCarbon  aClimate Change  aEpichloë endophyte  aHerbivory  aPhosphorous1 aBARTON, C.V.M.1 aBIRU, F.N.1 aISLAM , T.1 aMACE, W.J.1 aROWE, R.C.1 aCIBILS-STEWART, X.  tDRYAD Dataset, 2023. https://doi.org/10.5061/dryad.6m905qg4p