Previous infestation by conspecifics leads to a transient increase of the performance of aphids on wheat leaves

Bühler A, Schweiger R (2024)
Ecological Entomology.

Zeitschriftenaufsatz | E-Veröff. vor dem Druck | Englisch
 
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DOI
Autor*in
Bühler, AndreasUniBi; Schweiger, RabeaUniBi
Einrichtung
Fakultät für Biologie > Chemische Ökologie
Projekt
SFB/Transregio 212: Eine neue Synthese zur Individualisation für die Verhaltensforschung, Ökologie und Evolution: Nischenwahl, Nischenkonformität, Nischenkonstruktion (NC3)
Abstract / Bemerkung
**Abstract**
  • The ecological niche of aphids is largely defined by the phloem sap of plants, which they consume. Previous studies revealed that aphids may change the phloem sap metabolome and that a previous aphid infestation may benefit them. As aphids reproduce parthenogenetically, the performance and preference of aphids of the same monoclonal aphid lineage can be compared between previously uninfested and previously aphid‐infested plants.
  • Wheat (Triticum aestivum) leaves were infested by clonal lineages ofSitobion avenaeaphids for 9–10 days. Leaf phloem exudates were analysed using amino acid profiling and metabolic fingerprinting, capturing mainly specialised metabolites. It was investigated whether aphid colony sizes differ between leaves that were previously uninfested or infested by aphids of a different clonal lineage or by aphids of the same clonal lineage and whether aphids show a preference for any of these leaves.
  • The relative concentrations of metabolites in the phloem exudates were not affected by aphid infestation. Aphid colonies were partly larger on previously aphid‐infested leaves than on control leaves. However, this effect was transient and finally colonies had similar sizes. Given a choice between previously aphid‐infested and uninfested leaves,S. avenaenymphs showed no preferences.
  • The findings that positive effects of previous aphid infestation on aphid performance are transient and that the performance but not the preference of the aphids was affected by previous aphid infestation highlight the temporal dynamics and complexity of aphid–plant interactions. Niche alteration processes may be partly involved in these interactions.
    •
    Erscheinungsjahr
    2024
    Zeitschriftentitel
    Ecological Entomology
    ISSN
    0307-6946
    eISSN
    1365-2311
    Page URI
    https://pub.uni-bielefeld.de/record/2986975

    Zitieren

    Bühler A, Schweiger R. Previous infestation by conspecifics leads to a transient increase of the performance of aphids on wheat leaves. Ecological Entomology. 2024.
    Bühler, A., & Schweiger, R. (2024). Previous infestation by conspecifics leads to a transient increase of the performance of aphids on wheat leaves. Ecological Entomology. https://doi.org/10.1111/een.13316
    Bühler, Andreas, and Schweiger, Rabea. 2024. “Previous infestation by conspecifics leads to a transient increase of the performance of aphids on wheat leaves”. Ecological Entomology.
    Bühler, A., and Schweiger, R. (2024). Previous infestation by conspecifics leads to a transient increase of the performance of aphids on wheat leaves. Ecological Entomology.
    Bühler, A., & Schweiger, R., 2024. Previous infestation by conspecifics leads to a transient increase of the performance of aphids on wheat leaves. Ecological Entomology.
    A. Bühler and R. Schweiger, “Previous infestation by conspecifics leads to a transient increase of the performance of aphids on wheat leaves”, Ecological Entomology, 2024.
    Bühler, A., Schweiger, R.: Previous infestation by conspecifics leads to a transient increase of the performance of aphids on wheat leaves. Ecological Entomology. (2024).
    Bühler, Andreas, and Schweiger, Rabea. “Previous infestation by conspecifics leads to a transient increase of the performance of aphids on wheat leaves”. Ecological Entomology (2024).
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