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\begin{document}

\title{Invasion-induced root-fungal disruptions alter plant water and nitrogen
economies}



\author[1]{Lalasia Bialic-Murphy}%
\author[2]{Nicholas Smith}%
\author[1]{Priya Voothuluru}%
\author[1]{Robert McElderry}%
\author[3]{Steven Cassidy}%
\author[1]{Morgan Roche}%
\author[4]{Stephanie Kivlin}%
\author[4]{Susan Kalisz}%
\affil[1]{University of Tennessee}%
\affil[2]{Texas Tech University}%
\affil[3]{University of Florida}%
\affil[4]{The University of Tennessee Knoxville}%


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  \date{June 13, 2024}


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\begin{abstract}
Despite widespread evidence that biological invasion influences both the
biotic and abiotic soil environments, the extent to which these two
pathways underpin the effects of invasion on plant traits and
performance is unknown. Leveraging a long-term (14-yr) field experiment,
we show that an allelochemical-producing invader affects plants through
biotic mechanisms, altering the soil fungal community composition, with
no apparent shifts in soil nutrient availability. Changes in belowground
fungal communities result in high costs of nutrient uptake for native
perennials and a shift in functional traits linked to their water and
nutrient use efficiencies. Some species in the invaded community
compensate for high nutrient costs by reducing nutrient uptake and
maintaining photosynthesis by expending more water, which demonstrates a
trade-off in trait investment. For the first time, we show that the
disruption of belowground nutritional symbionts can drive native plants
toward novel regions in order to maintain their water and nutrient
economics.{}%
\end{abstract}%



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