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We Are What We Eat: A Stoichiometric and Ecometabolomic Study of Caterpillars Feeding on Two Pine Subspecies of Pinus sylvestris

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    SYSNO ASEP0506315
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleWe Are What We Eat: A Stoichiometric and Ecometabolomic Study of Caterpillars Feeding on Two Pine Subspecies of Pinus sylvestris
    Author(s) Rivas-Ubach, A. (ES)
    Penuelas, J. (ES)
    Antonio Hodar, J. (ES)
    Oravec, Michal (UEK-B) RID, ORCID, SAI
    Pasa-Tolic, L. (US)
    Urban, Otmar (UEK-B) RID, ORCID, SAI
    Sardans, J. (ES)
    Number of authors7
    Article number59
    Source TitleInternational Journal of Molecular Sciences. - : MDPI
    Roč. 20, č. 1 (2019)
    Number of pages19 s.
    Languageeng - English
    CountryCH - Switzerland
    Keywordsthaumetopoea-pityocampa ; scots pine ; elemental stoichiometry ; metabolomic responses ; foliar metabolomes ; insect herbivore ; food quality ; fresh-water ; nitrogen ; nutrient ; plant-insect ; metabolomics ; stoichiometry ; processionary moth ; scots pine ; secondary metabolites ; herbivory
    Subject RIVCE - Biochemistry
    OECD categoryBiochemistry and molecular biology
    R&D ProjectsEF16_013/0001609 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
    LO1415 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
    Research InfrastructureCzeCOS II - 90061 - Ústav výzkumu globální změny AV ČR, v. v. i.
    Method of publishingOpen access
    Institutional supportUEK-B - RVO:86652079
    UT WOS000459747700059
    EID SCOPUS85059247251
    DOI10.3390/ijms20010059
    AnnotationMany studies have addressed several plant-insect interaction topics at nutritional, molecular, physiological, and evolutionary levels. However, it is still unknown how flexible the metabolism and the nutritional content of specialist insect herbivores feeding on different closely related plants can be. We performed elemental, stoichiometric, and metabolomics analyses on leaves of two coexisting Pinus sylvestris subspecies and on their main insect herbivore,,the caterpillar of the processionary moth (Thaumetopoea pityocampa). Caterpillars feeding on different pine subspecies had distinct overall metabolome structure, accounting for over 10% of the total variability. Although plants and insects have very divergent metabolomes, caterpillars showed certain resemblance to their plant-host metabolome. In addition, few plant-related secondary metabolites were found accumulated in caterpillar tissues which could potentially be used for self-defense. Caterpillars feeding on N and P richer needles had lower N and P tissue concentration and higher C:N and C:P ratios, suggesting that nutrient transfer is not necessarily linear through trophic levels and other plant-metabolic factors could be interfering. This exploratory study showed that little chemical differences between plant food sources can impact the overall metabolome of specialist insect herbivores. Significant nutritional shifts in herbivore tissues could lead to larger changes of the trophic web structure.
    WorkplaceGlobal Change Research Institute
    ContactNikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268
    Year of Publishing2020
    Electronic addresshttps://www.mdpi.com/1422-0067/20/1/59
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