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Flood-borne pesticides are transferred from riparian soil via plants to phytophagous aphids.

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Title: Flood-borne pesticides are transferred from riparian soil via plants to phytophagous aphids.
Authors: Fiolka, Franziska1 (AUTHOR) Franziska.Fiolka@rptu.de, Fuchs, Timo1 (AUTHOR) t.fuchs@edu.rptu.de, Roodt, Alexis P.1 (AUTHOR) roodt.a@rptu.de, Manfrin, Alessandro1 (AUTHOR) a.manfrin@rptu.de, Schulz, Ralf1 (AUTHOR) r.schulz@rptu.de
Source: Chemosphere. May2025, Vol. 377, pN.PAG-N.PAG. 1p.
Subjects: Biopesticides, Stinging nettle, Soil pollution, Plant stems, Pesticides, Fungicides
Abstract: Surface waters are known to be polluted by a number of contaminants including synthetic pesticides. As flooding events intensify due to climate change, the flood-mediated transfer of pesticides to terrestrial ecosystems may also increase, potentially resulting in unforeseen exposure for terrestrial food-webs. To assess the uptake and trophic transfer of flood-mediated pesticide entries, we simulated riparian soil contamination caused by floodwater in a climate chamber pot experiment. The floodwater contained 31 fungicides and insecticides at environmentally relevant concentrations. We exposed potted stinging nettle plants (Urtica dioica) which were colonized by aphids to four sequential simulated flooding events and measured the pesticide concentrations in the soil, plant roots, plant stems and leaves, and aphids using HPLC-MS/MS. After four flooding events, the sum of insecticide and fungicide concentrations increased six-fold in soil and over thirty-fold in nettle plants compared to the concentrations after one flooding event. Bixafen and etofenprox showed the highest concentration in nettle leaves and stems, indicating bioaccumulation. After the four flooding events, thirteen pesticides were detected at concentrations up to 13.7 μg kg−1 in the phytophagous aphids with picoxystrobin, fipronil, trifloxystrobin, spiroxamine, and fluopyram showing biomagnification. This study shows that commonly applied pesticides can be transferred to riparian soils by flooding events, taken up by plants and biomagnify in herbivorous insects. [Display omitted] • Sequential flooding events lead to an increase in pesticide concentrations in soil. • Pesticide concentrations in plants are highly dynamic after flooding events. • Pesticides bioaccumulate in nettle plants after sequential flood exposure. • Pesticides are biomagnified in phytophagous aphids via trophic transfer. • Flood-borne pesticides penetrate the riparian food-web. [ABSTRACT FROM AUTHOR]
Copyright of Chemosphere is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
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  Label: Title
  Group: Ti
  Data: Flood-borne pesticides are transferred from riparian soil via plants to phytophagous aphids.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Fiolka%2C+Franziska%22">Fiolka, Franziska</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> Franziska.Fiolka@rptu.de</i><br /><searchLink fieldCode="AR" term="%22Fuchs%2C+Timo%22">Fuchs, Timo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> t.fuchs@edu.rptu.de</i><br /><searchLink fieldCode="AR" term="%22Roodt%2C+Alexis+P%2E%22">Roodt, Alexis P.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> roodt.a@rptu.de</i><br /><searchLink fieldCode="AR" term="%22Manfrin%2C+Alessandro%22">Manfrin, Alessandro</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> a.manfrin@rptu.de</i><br /><searchLink fieldCode="AR" term="%22Schulz%2C+Ralf%22">Schulz, Ralf</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> r.schulz@rptu.de</i>
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  Label: Source
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  Data: <searchLink fieldCode="JN" term="%22Chemosphere%22">Chemosphere</searchLink>. May2025, Vol. 377, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Biopesticides%22">Biopesticides</searchLink><br /><searchLink fieldCode="DE" term="%22Stinging+nettle%22">Stinging nettle</searchLink><br /><searchLink fieldCode="DE" term="%22Soil+pollution%22">Soil pollution</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+stems%22">Plant stems</searchLink><br /><searchLink fieldCode="DE" term="%22Pesticides%22">Pesticides</searchLink><br /><searchLink fieldCode="DE" term="%22Fungicides%22">Fungicides</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Surface waters are known to be polluted by a number of contaminants including synthetic pesticides. As flooding events intensify due to climate change, the flood-mediated transfer of pesticides to terrestrial ecosystems may also increase, potentially resulting in unforeseen exposure for terrestrial food-webs. To assess the uptake and trophic transfer of flood-mediated pesticide entries, we simulated riparian soil contamination caused by floodwater in a climate chamber pot experiment. The floodwater contained 31 fungicides and insecticides at environmentally relevant concentrations. We exposed potted stinging nettle plants (Urtica dioica) which were colonized by aphids to four sequential simulated flooding events and measured the pesticide concentrations in the soil, plant roots, plant stems and leaves, and aphids using HPLC-MS/MS. After four flooding events, the sum of insecticide and fungicide concentrations increased six-fold in soil and over thirty-fold in nettle plants compared to the concentrations after one flooding event. Bixafen and etofenprox showed the highest concentration in nettle leaves and stems, indicating bioaccumulation. After the four flooding events, thirteen pesticides were detected at concentrations up to 13.7 μg kg−1 in the phytophagous aphids with picoxystrobin, fipronil, trifloxystrobin, spiroxamine, and fluopyram showing biomagnification. This study shows that commonly applied pesticides can be transferred to riparian soils by flooding events, taken up by plants and biomagnify in herbivorous insects. [Display omitted] • Sequential flooding events lead to an increase in pesticide concentrations in soil. • Pesticide concentrations in plants are highly dynamic after flooding events. • Pesticides bioaccumulate in nettle plants after sequential flood exposure. • Pesticides are biomagnified in phytophagous aphids via trophic transfer. • Flood-borne pesticides penetrate the riparian food-web. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Chemosphere is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.chemosphere.2025.144355
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      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Biopesticides
        Type: general
      – SubjectFull: Stinging nettle
        Type: general
      – SubjectFull: Soil pollution
        Type: general
      – SubjectFull: Plant stems
        Type: general
      – SubjectFull: Pesticides
        Type: general
      – SubjectFull: Fungicides
        Type: general
    Titles:
      – TitleFull: Flood-borne pesticides are transferred from riparian soil via plants to phytophagous aphids.
        Type: main
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            NameFull: Fiolka, Franziska
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            NameFull: Fuchs, Timo
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            – D: 15
              M: 05
              Text: May2025
              Type: published
              Y: 2025
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              Value: 377
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