Different fates of metabolites and small variation in chemical composition characterise frass chemistry in a specialist caterpillar
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F24%3A00582636" target="_blank" >RIV/60077344:_____/24:00582636 - isvavai.cz</a>
Alternative codes found
RIV/60076658:12310/24:43907986
Result on the web
<a href="https://resjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/phen.12429" target="_blank" >https://resjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/phen.12429</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/phen.12429" target="_blank" >10.1111/phen.12429</a>
Alternative languages
Result language
angličtina
Original language name
Different fates of metabolites and small variation in chemical composition characterise frass chemistry in a specialist caterpillar
Original language description
Specialist and generalist insect herbivores evolved different strategies to process host-plant metabolites. We explored frass composition in Laothoe populi (L.) caterpillars (Lepidoptera: Sphingidae), a specialist moth species that is closely associated with plants of the Salicaceae (Mirb.) family. We fed the caterpillars with leaves from three willow species (Salix caprea L., S. purpurea L. and S. viminalis L.), one willow hybrid (S. x rubens Schrank) and one poplar species (Populus tremula L.). Using untargeted metabolomics, we compared the chemical composition and variation among leaf and frass samples. We quantified the chemical variation using either a simple index based on the presence and concentration of metabolites (i.e., Bray-Curtis) or an index that additionally accounts for chemical structural-compositional similarity (CSCS) among metabolites. Due to the high degree of dietary specialisation, we expected low host-specific variation in frass composition among the caterpillars. Based on literature, we further hypothesised that ingested salicinoids will be largely modified in the caterpillar gut while flavonoids will be often passively excreted. Finally, we compared chemical variation among the samples when quantified with Bray-Curtis or CSCS metrics. As expected, we found relatively low host-specific variation in the chemical composition of caterpillar frass. Our results further suggest that flavonoids were largely passively excreted by the caterpillars, while salicinoids were metabolised in the gut. Finally, we found that chemical composition measures based on Bray-Curtis overestimated the differences in chemical composition between frass and leaves, suggesting that for these type of samples CSCS measures are better suited to reflect metabolic changes more realistically.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10616 - Entomology
Result continuities
Project
<a href="/en/project/GF23-06855L" target="_blank" >GF23-06855L: Hybridization as a path to success? Adaptive hybridization in willows in face of biotic and abiotic pressures</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physiological Entomology
ISSN
0307-6962
e-ISSN
1365-3032
Volume of the periodical
49
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
110-117
UT code for WoS article
001151615300001
EID of the result in the Scopus database
2-s2.0-85183938503