Plant Physiol. Illumina
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
QUICK SEARCH:   [advanced]


     

Plant Physiology Preview
Published on January 12, 2007; 10.1104/pp.106.090985

OPEN ACCESS ARTICLE
This Article
Free via Open Access: OA
Right arrow Full Text (Plant Physiology Preview (PDF))
Right arrow Supplemental Data
Right arrowOA All Versions of this Article:
143/2/825    most recent
pp.106.090985v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Web of Science (23)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Tellström, V.
Right arrow Articles by Niehaus, K.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Tellström, V.
Right arrow Articles by Niehaus, K.
Agricola
Right arrow Articles by Tellström, V.
Right arrow Articles by Niehaus, K.

Received October 6, 2006
Accepted November 28, 2006

The Lipopolysaccharide of Sinorhizobium meliloti Suppresses defense-associated Gene Expression in Cell Cultures of the Host Plant Medicago truncatula

Verena Tellström , Björn Usadel , Oliver Thimm , Mark Stitt , Helge Küster , and Karsten Niehaus *

Proteom und Metabolomforschung, Fakultät für Biologie, Universität Bielefeld, Postfach 100131, D-33501 Bielefeld, Germany
Max-Planck-Institut für Molekulare Pflanzenphysiologie, Wissenschaftspark Golm, Postfach 14424, Potsdam, Germany
Institut für Genomforschung, Center for Biotechnology, Universität Bielefeld, Postfach 100131, D-33594 Bielefeld, Germany

* Corresponding author; email: karsten.niehaus{at}genetik.uni-bielefeld.de.

In the establishment of the symbiosis between Medicago truncatula and the nitrogen-fixing bacterium Sinorhizobium meliloti the lipopolysaccharide (LPS) of the microsymbiont plays an important role as a signal molecule. It has been shown in cell cultures that the LPS is able to suppress an elicitor induced oxidative burst. To investigate the effect of S. meliloti LPS on defense-associated gene expression a microarray experiment was performed. For the evaluation of the M. truncatula microarray datasets the software tool MapMan that was initially developed for the visualization of Arabidopsis thaliana datasets was adapted, by assigning Medicago genes to the ontology originally created for Arabidopsis. This allowed functional visualization of gene expression of M. truncatula suspension cultured cells treated with invertase as an elicitor. A gene expression pattern characteristic for a defense response was observed. Concomitant treatment of M. truncatula suspension cultured cells with invertase and S. meliloti LPS leads to a lower level of induction of defense-associated genes, compared to induction rates in cells treated with invertase alone. This suppression of defense-associated transcriptional rearrangement affects genes induced as well as repressed by elicitation and acts on transcripts connected to virtually all kinds of cellular processes. This indicates that LPS of the symbiont not only suppresses fast defense responses as the oxidative burst but also exerts long-term influences, including transcriptional adjustment to pathogen attack. These data indicate a role for LPS during the infection of the plant by its symbiotic partner.




This article has been cited by other articles:


Home page
 The Plant GenomeHome page
S. S. Yang, W. W. Xu, M. Tesfaye, J. F. S. Lamb, H.-J. G. Jung, D. A. Samac, C. P. Vance, and J. W. Gronwald
Single-Feature Polymorphism Discovery in the Transcriptome of Tetraploid Alfalfa
The Plant Genome, November 1, 2009; 2(3): 224 - 232.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
M. Tor, M. T. Lotze, and N. Holton
Receptor-mediated signalling in plants: molecular patterns and programmes
J. Exp. Bot., September 1, 2009; 60(13): 3645 - 3654.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
V. Nicaise, M. Roux, and C. Zipfel
Recent Advances in PAMP-Triggered Immunity against Bacteria: Pattern Recognition Receptors Watch over and Raise the Alarm
Plant Physiology, August 1, 2009; 150(4): 1638 - 1647.
[Full Text] [PDF]

Home page
 Plant CellHome page
T. Vernie, S. Moreau, F. de Billy, J. Plet, J.-P. Combier, C. Rogers, G. Oldroyd, F. Frugier, A. Niebel, and P. Gamas
EFD Is an ERF Transcription Factor Involved in the Control of Nodule Number and Differentiation in Medicago truncatula
PLANT CELL, October 1, 2008; 20(10): 2696 - 2713.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
G. Den Herder, A. De Keyser, R. De Rycke, S. Rombauts, W. Van de Velde, M. R. Clemente, C. Verplancke, P. Mergaert, E. Kondorosi, M. Holsters, et al.
Seven in Absentia Proteins Affect Plant Growth and Nodulation in Medicago truncatula
Plant Physiology, September 1, 2008; 148(1): 369 - 382.
[Abstract] [Full Text] [PDF]

Home page
 ScienceHome page
D. Drissner, G. Kunze, N. Callewaert, P. Gehrig, M. Tamasloukht, T. Boller, G. Felix, N. Amrhein, and M. Bucher
Lyso-Phosphatidylcholine Is a Signal in the Arbuscular Mycorrhizal Symbiosis
Science, October 12, 2007; 318(5848): 265 - 268.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 2007 by the American Society of Plant Biologists