Publication
Title
Massive release of volatile organic compounds due to leaf midrib wounding in Populus tremula
Author
Abstract
We investigated the rapid initial response to wounding damage generated by straight cuts to the leaf lamina and midrib transversal cuts in mature aspen (Populus tremula) leaves that can occur upon herbivore feeding. Wound-induced volatile emission time-courses of 24 compounds were continuously monitored by a proton-transfer-reaction time-of-flight mass spectrometer (PTR-TOF-MS). After the mechanical wounding, an emission cascade was rapidly elicited, resulting in emissions of key stress volatiles methanol, acetaldehyde and volatiles of the lipoxygenase pathway, collectively constituting ca. 99% of the total emission. For the same wounding magnitude, midrib cuts lead to six-fold greater emissions of volatiles per mm2 of surface cut than lamina cuts during the first emission burst (shorter than 7 min), and exhibited a particularly high methanol emission compared to the emissions of other volatiles. This evidence suggests that feeding by herbivores capable of consuming the leaf midrib can result in disproportionally greater volatile release than feeding by smaller herbivores incapable of biting through the major veins.
Language
English
Source (journal)
Plant ecology. - Dordrecht
Publication
Dordrecht : 2018
ISSN
1385-0237
Volume/pages
219 :9 (2018) , p. 1021-1028
ISI
000441561700001
Full text (Publisher's DOI)
Full text (open access)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Project info
SIP-VOL+: Stress-Induced Plant Volatiles in Biosphere-Atmosphere System
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 17.08.2018
Last edited 17.09.2021
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