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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Plant Metabolites Involved in the Differential Development of a Heliantheae-Specialist Insect

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Author(s):
Gallon, Marilia Elias [1] ; Gobbo-Neto, Leonardo [1]
Total Authors: 2
Affiliation:
[1] Univ Sao Paulo, Sch Pharmaceut Sci Ribeirao Preto, Nucleo Pesquisa Prod Nat & Sintet, Av Cafe S-N, BR-14040903 Ribeirao Preto, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: METABOLITES; v. 11, n. 3 MAR 2021.
Web of Science Citations: 0
Abstract

Balanced nutritional intake is essential to ensure that insects undergo adequate larval development and metamorphosis. Integrative multidisciplinary approaches have contributed valuable insights regarding the ecological and evolutionary outcomes of plant-insect interactions. To address the plant metabolites involved in the larval development of a specialist insect, we investigated the development of Chlosyne lacinia caterpillars fed on Heliantheae species (Tithonia diversifolia, Tridax procumbens and Aldama robusta) leaves and determined the chemical profile of plants and insects using a metabolomic approach. By means of LC-MS and GC-MS combined analyses, 51 metabolites were putatively identified in Heliantheae species and C. lacinia caterpillars and frass; these metabolites included flavonoids, sesquiterpene lactones, monoterpenoids, sesquiterpenoids, diterpenes, triterpenes, oxygenated terpene derivatives, steroids and lipid derivatives. The leading discriminant metabolites were diterpenes, which were detected only in A. robusta leaves and insects that were fed on this plant-based diet. Additionally, caterpillars fed on A. robusta leaves took longer to complete their development to the adult phase and exhibited a greater diapause rate. Hence, we hypothesized that diterpenes may be involved in the differential larval development. Our findings shed light on the plant metabolites that play roles in insect development and metabolism, opening new research avenues for integrative studies of insect nutritional ecology. (AU)

FAPESP's process: 17/17023-4 - Evaluation of herbivore-induced responses and ecochemical interactions between Asteraceae plants and generalist and specialist on the tribe Heliantheae insect herbivores using ecometabolomic approach
Grantee:Marilia Elias Gallon
Support type: Scholarships in Brazil - Doctorate