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Interaction between herbivore defense and microbial signaling: Bacterial quorum-sensing compounds weaken JA-mediated herbivore resistance in Nicotiana attenuata
Year:
2010
Source of publication :
Chemoecology
Authors :
ברזני, עוז
;
.
Volume :
20
Co-Authors:
Heidel, A.J., Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Hans-Knöll-Strasse 8, 07745 Jena, Germany, Genome Analysis Group, Leibniz Institute for Age Research, Fritz Lipmann Institute, Beutenbergstrasse 11, 07745 Jena, Germany
Barazani, O., Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Hans-Knöll-Strasse 8, 07745 Jena, Germany, Institute of Plant Sciences, Agricultural Research Organization, 50250 Bet Dagan, Israel
Baldwin, I.T., Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Hans-Knöll-Strasse 8, 07745 Jena, Germany
Facilitators :
From page:
149
To page:
154
(
Total pages:
6
)
Abstract:
Bacteria play important roles in plant-herbivore interactions and communicate with each other with chemical signals, often N-acylhomoserine lactones (AHL). Plant responses to these signals may influence resistance to microbial attack, but the effects of these signals on herbivore defense are unstudied. To determine whether AHL influence jasmonate (JA)-mediated herbivore resistance in Nicotiana attenuata, we treated wild-type (WT) and JA-deficient genotypes (antisense expression of NaLOX3) with N-hexanoyl-dl-homoserine lactone (C6-HSL) and measured the performance of Manduca sexta larvae. Larval mass gain on C6-HSL-treated WT plants was equivalent to that on non-treated NaLOX3-silenced plants, but significantly 4.1-fold larger than on untreated WT plants. Mass gain was unaffected by C6-HSL treatment of NaLOX3-silenced plants. Microarray analysis of the plants elicited with C6-HSL and JA inducing fatty acid-amino acid conjugates revealed a down-regulation of a proteinase inhibitor in the C6-HSL-treated WT plants. The results therefore suggest that the increased performance of M. sexta was due to direct or indirect effect of C6-HSL on JA-mediated defenses. © 2009 Birkhäuser Verlag, Basel/Switzerland.
Note:
Related Files :
Bacteria (microorganisms)
jasmonic acid
Manduca sexta
Manduca sexta proteinase inhibitor
Nicotiana attenuata
quorum sensing
עוד תגיות
תוכן קשור
More details
DOI :
10.1007/s00049-009-0031-9
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
19575
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:30
You may also be interested in
Scientific Publication
Interaction between herbivore defense and microbial signaling: Bacterial quorum-sensing compounds weaken JA-mediated herbivore resistance in Nicotiana attenuata
20
Heidel, A.J., Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Hans-Knöll-Strasse 8, 07745 Jena, Germany, Genome Analysis Group, Leibniz Institute for Age Research, Fritz Lipmann Institute, Beutenbergstrasse 11, 07745 Jena, Germany
Barazani, O., Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Hans-Knöll-Strasse 8, 07745 Jena, Germany, Institute of Plant Sciences, Agricultural Research Organization, 50250 Bet Dagan, Israel
Baldwin, I.T., Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Hans-Knöll-Strasse 8, 07745 Jena, Germany
Interaction between herbivore defense and microbial signaling: Bacterial quorum-sensing compounds weaken JA-mediated herbivore resistance in Nicotiana attenuata
Bacteria play important roles in plant-herbivore interactions and communicate with each other with chemical signals, often N-acylhomoserine lactones (AHL). Plant responses to these signals may influence resistance to microbial attack, but the effects of these signals on herbivore defense are unstudied. To determine whether AHL influence jasmonate (JA)-mediated herbivore resistance in Nicotiana attenuata, we treated wild-type (WT) and JA-deficient genotypes (antisense expression of NaLOX3) with N-hexanoyl-dl-homoserine lactone (C6-HSL) and measured the performance of Manduca sexta larvae. Larval mass gain on C6-HSL-treated WT plants was equivalent to that on non-treated NaLOX3-silenced plants, but significantly 4.1-fold larger than on untreated WT plants. Mass gain was unaffected by C6-HSL treatment of NaLOX3-silenced plants. Microarray analysis of the plants elicited with C6-HSL and JA inducing fatty acid-amino acid conjugates revealed a down-regulation of a proteinase inhibitor in the C6-HSL-treated WT plants. The results therefore suggest that the increased performance of M. sexta was due to direct or indirect effect of C6-HSL on JA-mediated defenses. © 2009 Birkhäuser Verlag, Basel/Switzerland.
Scientific Publication
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