Changes in volatile organic compounds (VOCs) content in resistant and non-resistant forest trees in response to bark beetle attack

The response of forest trees to bark beetle attack involves substantial changes in terpene content, which varies between resistant and non-resistant species. Terpenes serve as crucial chemical defences against pests, and their production can be influenced by prior attack history, water stress, and b...

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Main Authors: Petr Soudek, Jan Rezek, Kateřina Moťková, Šárka Petrová, Pavlína Máchová, Adam Véle, Martin Fulín, Petr Hošek
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2025-05-01
Series:Journal of Forest Science
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Online Access:https://jfs.agriculturejournals.cz/artkey/jfs-202505-0001_changes-in-volatile-organic-compounds-vocs-content-in-resistant-and-non-resistant-forest-trees-in-response-to.php
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author Petr Soudek
Jan Rezek
Kateřina Moťková
Šárka Petrová
Pavlína Máchová
Adam Véle
Martin Fulín
Petr Hošek
author_facet Petr Soudek
Jan Rezek
Kateřina Moťková
Šárka Petrová
Pavlína Máchová
Adam Véle
Martin Fulín
Petr Hošek
author_sort Petr Soudek
collection DOAJ
description The response of forest trees to bark beetle attack involves substantial changes in terpene content, which varies between resistant and non-resistant species. Terpenes serve as crucial chemical defences against pests, and their production can be influenced by prior attack history, water stress, and biotic interactions. Moreover, the effectiveness of terpenes in resisting bark beetle attack is influenced by their chemical composition. Different tree species produce different types and amounts of terpenes that can affect their overall resistance levels. In conifers, acyclic and cyclic monoterpenes and sesquiterpenes were significantly present in all samples. Acyclic monoterpenes, ketones, aldehydes, monocarboxylic acids and their esters, and aromatic and cyclic compounds have been identified in beech. A statistically significant decrease of compounds in infested trees was determined in pine (cis-β-ocimene, neo-allo-ocimene, terpinene-4-ol, and δ-cadinene), and fir (acetophenone, benzonitrile, phenol, and zonarene). In addition, increased benzaldehyde production was observed. However, in infested beech trees, only increased production of some aliphatic and aromatic compounds (2-butanone and 3,5-octadien-2-one, 2-methyl-4-pentenal and 2,4-hexadienal, octanoic acid, nonanoic acid, 3,4-dimethyl-2,5-furandione, acetophenone, benzeneacetaldehyde, 2-ethyl-1H-pyrrole, β-ionone-5,6-epoxide, β-cyclocitral, and geranyl acetone) was found. We investigated the changes in the terpene composition of surviving trees in bark beetle-infested stands of beech (Fagus sylvatica), pine (Pinus sylvestris), and fir (Abies alba). Our data showed that the distribution of different groups of volatile compounds varied according to the tree species.
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publishDate 2025-05-01
publisher Czech Academy of Agricultural Sciences
record_format Article
series Journal of Forest Science
spelling doaj-art-c2dbbf121774472abb5d4af3dce91c792025-08-20T02:37:39ZengCzech Academy of Agricultural SciencesJournal of Forest Science1212-48341805-935X2025-05-0171521823610.17221/4/2025-JFSjfs-202505-0001Changes in volatile organic compounds (VOCs) content in resistant and non-resistant forest trees in response to bark beetle attackPetr Soudek0Jan Rezek1Kateřina Moťková2Šárka Petrová3Pavlína Máchová4Adam Véle5Martin Fulín6Petr Hošek7Laboratory of Plant Biotechnologies, Institute of Experimental Botany of the Czech Academy of Sciences, Prague, Czech RepublicLaboratory of Plant Biotechnologies, Institute of Experimental Botany of the Czech Academy of Sciences, Prague, Czech RepublicLaboratory of Plant Biotechnologies, Institute of Experimental Botany of the Czech Academy of Sciences, Prague, Czech RepublicLaboratory of Plant Biotechnologies, Institute of Experimental Botany of the Czech Academy of Sciences, Prague, Czech RepublicDepartment of Forest Tree Species Biology and Breeding, Forestry and Game Management Research Institute, Jíloviště-Strnady, Czech RepublicDepartment of Forest Tree Species Biology and Breeding, Forestry and Game Management Research Institute, Jíloviště-Strnady, Czech RepublicDepartment of Forest Tree Species Biology and Breeding, Forestry and Game Management Research Institute, Jíloviště-Strnady, Czech RepublicLaboratory of Hormonal Regulations in Plants, Institute of Experimental Botany of the Czech Academy of Sciences, Prague, Czech RepublicThe response of forest trees to bark beetle attack involves substantial changes in terpene content, which varies between resistant and non-resistant species. Terpenes serve as crucial chemical defences against pests, and their production can be influenced by prior attack history, water stress, and biotic interactions. Moreover, the effectiveness of terpenes in resisting bark beetle attack is influenced by their chemical composition. Different tree species produce different types and amounts of terpenes that can affect their overall resistance levels. In conifers, acyclic and cyclic monoterpenes and sesquiterpenes were significantly present in all samples. Acyclic monoterpenes, ketones, aldehydes, monocarboxylic acids and their esters, and aromatic and cyclic compounds have been identified in beech. A statistically significant decrease of compounds in infested trees was determined in pine (cis-β-ocimene, neo-allo-ocimene, terpinene-4-ol, and δ-cadinene), and fir (acetophenone, benzonitrile, phenol, and zonarene). In addition, increased benzaldehyde production was observed. However, in infested beech trees, only increased production of some aliphatic and aromatic compounds (2-butanone and 3,5-octadien-2-one, 2-methyl-4-pentenal and 2,4-hexadienal, octanoic acid, nonanoic acid, 3,4-dimethyl-2,5-furandione, acetophenone, benzeneacetaldehyde, 2-ethyl-1H-pyrrole, β-ionone-5,6-epoxide, β-cyclocitral, and geranyl acetone) was found. We investigated the changes in the terpene composition of surviving trees in bark beetle-infested stands of beech (Fagus sylvatica), pine (Pinus sylvestris), and fir (Abies alba). Our data showed that the distribution of different groups of volatile compounds varied according to the tree species.https://jfs.agriculturejournals.cz/artkey/jfs-202505-0001_changes-in-volatile-organic-compounds-vocs-content-in-resistant-and-non-resistant-forest-trees-in-response-to.phpabies albafagus sylvaticamonoterpenespinus sylvestrissesquiterpenes
spellingShingle Petr Soudek
Jan Rezek
Kateřina Moťková
Šárka Petrová
Pavlína Máchová
Adam Véle
Martin Fulín
Petr Hošek
Changes in volatile organic compounds (VOCs) content in resistant and non-resistant forest trees in response to bark beetle attack
Journal of Forest Science
abies alba
fagus sylvatica
monoterpenes
pinus sylvestris
sesquiterpenes
title Changes in volatile organic compounds (VOCs) content in resistant and non-resistant forest trees in response to bark beetle attack
title_full Changes in volatile organic compounds (VOCs) content in resistant and non-resistant forest trees in response to bark beetle attack
title_fullStr Changes in volatile organic compounds (VOCs) content in resistant and non-resistant forest trees in response to bark beetle attack
title_full_unstemmed Changes in volatile organic compounds (VOCs) content in resistant and non-resistant forest trees in response to bark beetle attack
title_short Changes in volatile organic compounds (VOCs) content in resistant and non-resistant forest trees in response to bark beetle attack
title_sort changes in volatile organic compounds vocs content in resistant and non resistant forest trees in response to bark beetle attack
topic abies alba
fagus sylvatica
monoterpenes
pinus sylvestris
sesquiterpenes
url https://jfs.agriculturejournals.cz/artkey/jfs-202505-0001_changes-in-volatile-organic-compounds-vocs-content-in-resistant-and-non-resistant-forest-trees-in-response-to.php
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