Insect oral secretions suppress wound-induced responses in Arabidopsis

Autor: Natacha Bodenhausen, Matthias Erb, Floriane Consales, Fabian Schweizer, Islam S. Sobhy, Friederike Bruessow, Philippe Reymond, Caroline Gouhier-Darimont
Jazyk: angličtina
Rok vydání: 2017
Předmět:
0106 biological sciences
Arabidopsis thaliana
Physiology
Arabidopsis
Plant Science
Insect
01 natural sciences
Suppression
Genetic
Gene Expression Regulation
Plant
Jasmonate
media_common
Oligonucleotide Array Sequence Analysis
0303 health sciences
Pieris brassicae
biology
food and beverages
Research Papers
Cell biology
defence suppression
RNA
Plant
Larva
Biological Assay
Salicylic Acid
Butterflies
Signal Transduction
media_common.quotation_subject
Plant Immunity
Cyclopentanes
Spodoptera
03 medical and health sciences
gene expression
insect oral secretions
wounding
Stress
Physiological
Botany
Animals
Herbivory
Oxylipins
Spodoptera littoralis
030304 developmental biology
Mouth
QH
Gene Expression Profiling
QK
fungi
biology.organism_classification
Plant Leaves
Transcriptome
010606 plant biology & botany
Zdroj: Journal of Experimental Botany
Journal of Experimental Botany, vol. 63, no. 2, pp. 727-737
Journal of Experimental Biology
ISSN: 1460-2431
Popis: 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.
Databáze: OpenAIRE
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