Biochemical Responses in : Defending Against Sucking and Leaf-Chewing Insect Herbivores

Overview

Journal Plants (Basel)

Date 2024 May 11

PMID 38732458

Authors

Filip Pastierovic

Alina Kalyniukova

Jaromir Hradecky

Ondrej Dvorak

Jan Vitamvas

Kanakachari Mogilicherla

Ivana Tomaskova

Affiliations

Soon will be listed here.

Abstract

The main biochemical traits were estimated in poplar leaves under biotic attack (aphids and spongy moth infestation). Changes in the abundance of bioactive compounds in genetically uniform individuals of European aspen (), such as proline, polyphenolic compounds, chlorophylls and , and volatile compounds, were determined between leaves damaged by sucking insects (aphid-) and chewing insects (spongy moth-) compared to uninfected leaves. Among the nine analyzed phenolic compounds, only catechin and procyanidin showed significant differences between the control leaves and leaves affected by spongy moths or aphids. GC-TOF-MS volatile metabolome analysis showed the clear separation of the control versus aphids-infested and moth-infested leaves. In total, the compounds that proved to have the highest explanatory power for aphid-infested leaves were 3-hexenal and 5-methyl-2-furanone, and for moth-infested leaves, trans-α-farnesene and 4-cyanocyclohexane. The aphid-infested leaves contained around half the amount of chlorophylls and twice the amount of proline compared to uninfected leaves, and these results evidenced that aphids influence plant physiology more than chewing insects.

Citing Articles

Effects of Larch Woolly Adelgid Infestation on Morphological, Histological and Allelochemical Traits of European Larch Needles.

Dancewicz K, Kordan B, Damszel M, Sergiel I, Biesaga M, Mroczek J Insects. 2025; 15(12.

PMID: 39769540 PMC: 11677814. DOI: 10.3390/insects15120938.

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