High intraspecific variability and previous experience affect polyphenol metabolism in polyphagous Lymantria mathura caterpillars

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F24%3A00582733" target="_blank" >RIV/60077344:_____/24:00582733 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/24:43907988

Result on the web

<a href="https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.10973" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.10973</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/ece3.10973" target="_blank" >10.1002/ece3.10973</a>

Result language

angličtina

Original language name

High intraspecific variability and previous experience affect polyphenol metabolism in polyphagous Lymantria mathura caterpillars

Original language description

Polyphagous insect herbivores feed on multiple host-plant species and face a highly variable chemical landscape. Comparative studies of polyphagous herbivore metabolism across a range of plants is an ideal approach for exploring how intra- and interspecific chemical variation shapes species interactions. We used polyphagous caterpillars of Lymantria mathura (Erebidae, Lepidoptera) to explore mechanisms that may contribute to its ability to feed on various hosts. We focused on intraspecific variation in polyphenol metabolism, the fates of individual polyphenols, and the role of previous feeding experience on polyphenol metabolism and leaf consumption. We collected the caterpillars from Acer amoenum (Sapindaceae), Carpinus cordata (Betulaceae), and Quercus crispula (Fagaceae). We first fed the larvae with the leaves of their original host and characterized the polyphenol profiles in leaves and frass. We then transferred a subset of larvae to a different host species and quantified how host shifting affected their leaf consumption and polyphenol metabolism. There was high intraspecific variation in frass composition, even among caterpillars fed with one host. While polyphenols had various fates when ingested by the caterpillars, most of them were passively excreted. When we transferred the caterpillars to a new host, their previous experience influenced how they metabolized polyphenols. The one-host larvae metabolized a larger quantity of ingested polyphenols than two-host caterpillars. Some of these metabolites could have been sequestered, others were probably activated in the gut. One-host caterpillars retained more of the ingested leaf biomass than transferred caterpillars. The pronounced intraspecific variation in polyphenol metabolism, an ability to excrete ingested metabolites and potential dietary habituation are factors that may contribute to the ability of L. mathura to feed across multiple hosts. Further comparative studies can help identify if these mechanisms are related to differential host-choice and response to host-plant traits in specialist and generalist insect herbivores.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10618 - Ecology

Project

<a href="/en/project/GX19-28126X" target="_blank" >GX19-28126X: Testing mechanisms that maintain high species diversity in food webs by experimental manipulation of trophic cascades in a tropical rainforest</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Ecology and Evolution

ISSN

2045-7758

e-ISSN

2045-7758

Volume of the periodical

14

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

e10973

UT code for WoS article

001160946700001

EID of the result in the Scopus database

2-s2.0-85184929076