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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Insect oral secretions suppress wound-induced responses in Arabidopsis
Journal of Experimental Botany, Volume 63, No. 2, Year 2012
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Description
The induction of plant defences and their subsequent suppression by insects is thought to be an important factor in the evolutionary arms race between plants and herbivores. Although insect oral secretions (OS) contain elicitors that trigger plant immunity, little is known about the suppressors of plant defences. The Arabidopsis thaliana transcriptome was analysed in response to wounding and OS treatment. The expression of several wound-inducible genes was suppressed after the application of OS from two lepidopteran herbivores, Pieris brassicae and Spodoptera littoralis. This inhibition was correlated with enhanced S. littoralis larval growth, pointing to an effective role of insect OS in suppressing plant defences. Two genes, an ERF/AP2 transcription factor and a proteinase inhibitor, were then studied in more detail. OS-induced suppression lasted for at least 48 h, was independent of the jasmonate or salicylate pathways, and was not due to known elicitors. Interestingly, insect OS attenuated leaf water loss, suggesting that insects have evolved mechanisms to interfere with the induction of water-stress-related defences. © 2011 The Author.
Authors & Co-Authors
Consales, Floriane
Switzerland, Lausanne
Université de Lausanne Unil
Schweizer, Fabian
Switzerland, Lausanne
Université de Lausanne Unil
Erb, Matthias
Switzerland, Neuchatel
Université de Neuchâtel
Germany, Jena
Max Planck Institute for Chemical Ecology
Gouhier-Darimont, Caroline
Switzerland, Lausanne
Université de Lausanne Unil
Bodenhausen, Natacha
Switzerland, Lausanne
Université de Lausanne Unil
Switzerland, Zurich
Eth Zürich
Bruessow, Friederike
Switzerland, Lausanne
Université de Lausanne Unil
Sobhy, Islam S.
Switzerland, Neuchatel
Université de Neuchâtel
Egypt, Ismailia
Faculty of Agriculture
Reymond, Philippe
Switzerland, Lausanne
Université de Lausanne Unil
Statistics
Citations: 145
Authors: 8
Affiliations: 5
Identifiers
Doi:
10.1093/jxb/err308
ISSN:
00220957
e-ISSN:
14602431
Research Areas
Environmental
Health System And Policy