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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 ASEP 0506315 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title We 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 authors 7 Article number 59 Source Title International Journal of Molecular Sciences. - : MDPI
Roč. 20, č. 1 (2019)Number of pages 19 s. Language eng - English Country CH - Switzerland Keywords thaumetopoea-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 RIV CE - Biochemistry OECD category Biochemistry and molecular biology R&D Projects EF16_013/0001609 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LO1415 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Research Infrastructure CzeCOS II - 90061 - Ústav výzkumu globální změny AV ČR, v. v. i. Method of publishing Open access Institutional support UEK-B - RVO:86652079 UT WOS 000459747700059 EID SCOPUS 85059247251 DOI 10.3390/ijms20010059 Annotation Many 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. Workplace Global Change Research Institute Contact Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Year of Publishing 2020 Electronic address https://www.mdpi.com/1422-0067/20/1/59
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