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Trophic Conditions Influence Widespread Distribution of Aster-Like Nanoparticles Within Aquatic Environments

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Abstract

Aster-like nanoparticles (ALNs) are newly described femto-entities. Their ecology (e.g., geographic distribution, spatial dynamic, preferences, forcing factors) is still unknown. Here, we report that these entities, which have largely been ignored until now, can develop or maintain themselves in most aquatic environments in the Loire River catchment, France. We observed a significant influence of the trophic state on ALN ecological distributions. A positive relationship between prokaryotic abundance and ALN (r2 = 0.72, p < 0.01) has been identified, but its exact nature remains to be clarified. Combined with their ubiquitous distribution and high abundances (up to 7.9 × 106 ALNs mL−1) recorded in our samples, this probably makes ALNs an overlooked functional component in aquatic ecosystems.

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Funding

This study was supported by the CYSTEM platform UCA-PARTNER (University of Clermont Auvergne UCA), Clermont-Ferrand, France) and the Laboratory Microorganisms: Genome and Environment (LMGE, UMR6023 CNRS-UCA, Clermont-Ferrand, France).

MF was supported by a PhD fellowship from the CPER 2015-2020 SYMBIOSE challenge program (French Ministry of Research, UCA, CNRS, INRA, Auvergne-Rhône-Alpes Region, FEDER). This study is a contribution to the “C NO LIMIT” project funded by the Interdisciplinary Mission of the French National Center of Scientific Research (CNRS) Program X-life, 2018 edition. This research was also financed by the French government IDEX-ISITE initiative 16-IDEX-0001 (CAP 20-25).

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Authors and Affiliations

  1. Université Clermont Auvergne, CNRS, Laboratoire Microorganismes : Genome, Environnement (LMGE), 63000, Clermont-Ferrand, France

    Maxime Fuster, Hermine Billard, Marie Mandart, Télesphore Sime-Ngando & Jonathan Colombet

  2. Université Clermont Auvergne, CNRS, GEOLAB, 63000, Clermont-Ferrand, France

    Johannes Steiger

Authors
  1. Maxime Fuster
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  2. Hermine Billard
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  3. Marie Mandart
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  4. Johannes Steiger
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  5. Télesphore Sime-Ngando
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  6. Jonathan Colombet
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Contributions

MF, HB, MM, JC designed the study and analyzed data. All authors wrote the manuscript, contributed critically and gave final approval for publication.

Corresponding author

Correspondence to Jonathan Colombet.

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The authors declare that they have no conflict of interest.

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Fuster, M., Billard, H., Mandart, M. et al. Trophic Conditions Influence Widespread Distribution of Aster-Like Nanoparticles Within Aquatic Environments. Microb Ecol 80, 741–745 (2020). https://doi.org/10.1007/s00248-020-01541-6

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  • DOI: https://doi.org/10.1007/s00248-020-01541-6

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