Transcript Profiling of Poplar Leaves upon Infection with Compatible and Incompatible Strains of the Foliar Rust Melampsora larici-populina1[W]
Identifieur interne : 002267 ( Main/Exploration ); précédent : 002266; suivant : 002268Transcript Profiling of Poplar Leaves upon Infection with Compatible and Incompatible Strains of the Foliar Rust Melampsora larici-populina1[W]
Auteurs : Cécile Rinaldi ; Annegret Kohler ; Pascal Frey ; Frédéric Duchaussoy ; Nathalie Ningre ; Arnaud Couloux ; Patrick Wincker ; Didier Le Thiec ; Silvia Fluch ; Francis Martin ; Sébastien DuplessisSource :
- Plant Physiology [ 0032-0889 ] ; 2007.
Abstract
To understand key processes governing defense mechanisms in poplar (
Url:
DOI: 10.1104/pp.106.094987
PubMed: 17400708
PubMed Central: 1913798
Affiliations:
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<author><name sortKey="Kohler, Annegret" sort="Kohler, Annegret" uniqKey="Kohler A" first="Annegret" last="Kohler">Annegret Kohler</name>
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<author><name sortKey="Duchaussoy, Frederic" sort="Duchaussoy, Frederic" uniqKey="Duchaussoy F" first="Frédéric" last="Duchaussoy">Frédéric Duchaussoy</name>
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<author><name sortKey="Ningre, Nathalie" sort="Ningre, Nathalie" uniqKey="Ningre N" first="Nathalie" last="Ningre">Nathalie Ningre</name>
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<author><name sortKey="Couloux, Arnaud" sort="Couloux, Arnaud" uniqKey="Couloux A" first="Arnaud" last="Couloux">Arnaud Couloux</name>
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<author><name sortKey="Wincker, Patrick" sort="Wincker, Patrick" uniqKey="Wincker P" first="Patrick" last="Wincker">Patrick Wincker</name>
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<author><name sortKey="Le Thiec, Didier" sort="Le Thiec, Didier" uniqKey="Le Thiec D" first="Didier" last="Le Thiec">Didier Le Thiec</name>
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<author><name sortKey="Fluch, Silvia" sort="Fluch, Silvia" uniqKey="Fluch S" first="Silvia" last="Fluch">Silvia Fluch</name>
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<author><name sortKey="Martin, Francis" sort="Martin, Francis" uniqKey="Martin F" first="Francis" last="Martin">Francis Martin</name>
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<author><name sortKey="Duplessis, Sebastien" sort="Duplessis, Sebastien" uniqKey="Duplessis S" first="Sébastien" last="Duplessis">Sébastien Duplessis</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Transcript Profiling of Poplar Leaves upon Infection with Compatible and Incompatible Strains of the Foliar Rust <italic>Melampsora larici-populina</italic>
<xref ref-type="fn" rid="fn1">1</xref>
<xref ref-type="fn" rid="fn3">[W]</xref>
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<author><name sortKey="Rinaldi, Cecile" sort="Rinaldi, Cecile" uniqKey="Rinaldi C" first="Cécile" last="Rinaldi">Cécile Rinaldi</name>
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<author><name sortKey="Kohler, Annegret" sort="Kohler, Annegret" uniqKey="Kohler A" first="Annegret" last="Kohler">Annegret Kohler</name>
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<author><name sortKey="Frey, Pascal" sort="Frey, Pascal" uniqKey="Frey P" first="Pascal" last="Frey">Pascal Frey</name>
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<author><name sortKey="Duchaussoy, Frederic" sort="Duchaussoy, Frederic" uniqKey="Duchaussoy F" first="Frédéric" last="Duchaussoy">Frédéric Duchaussoy</name>
</author>
<author><name sortKey="Ningre, Nathalie" sort="Ningre, Nathalie" uniqKey="Ningre N" first="Nathalie" last="Ningre">Nathalie Ningre</name>
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<author><name sortKey="Couloux, Arnaud" sort="Couloux, Arnaud" uniqKey="Couloux A" first="Arnaud" last="Couloux">Arnaud Couloux</name>
</author>
<author><name sortKey="Wincker, Patrick" sort="Wincker, Patrick" uniqKey="Wincker P" first="Patrick" last="Wincker">Patrick Wincker</name>
</author>
<author><name sortKey="Le Thiec, Didier" sort="Le Thiec, Didier" uniqKey="Le Thiec D" first="Didier" last="Le Thiec">Didier Le Thiec</name>
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<author><name sortKey="Fluch, Silvia" sort="Fluch, Silvia" uniqKey="Fluch S" first="Silvia" last="Fluch">Silvia Fluch</name>
</author>
<author><name sortKey="Martin, Francis" sort="Martin, Francis" uniqKey="Martin F" first="Francis" last="Martin">Francis Martin</name>
</author>
<author><name sortKey="Duplessis, Sebastien" sort="Duplessis, Sebastien" uniqKey="Duplessis S" first="Sébastien" last="Duplessis">Sébastien Duplessis</name>
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<series><title level="j">Plant Physiology</title>
<idno type="ISSN">0032-0889</idno>
<idno type="eISSN">1532-2548</idno>
<imprint><date when="2007">2007</date>
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<front><div type="abstract" xml:lang="en"><p>To understand key processes governing defense mechanisms in poplar (<italic>Populus</italic>
spp.) upon infection with the rust fungus <italic>Melampsora larici-populina</italic>
, we used combined histological and molecular techniques to describe the infection of <italic>Populus trichocarpa</italic>
× <italic>Populus deltoides</italic>
‘Beaupré’ leaves by compatible and incompatible fungal strains. Striking differences in host-tissue infection were observed after 48-h postinoculation (hpi) between compatible and incompatible interactions. No reactive oxygen species production could be detected at infection sites, while a strong accumulation of monolignols occurred in the incompatible interaction after 48 hpi, indicating a late plant response once the fungus already penetrated host cells to form haustorial infection structures. <italic>P. trichocarpa</italic>
whole-genome expression oligoarrays and sequencing of cDNAs were used to determine changes in gene expression in both interactions at 48 hpi. Temporal expression profiling of infection-regulated transcripts was further compared by cDNA arrays and reverse transcription-quantitative polymerase chain reaction. Among 1,730 significantly differentially expressed transcripts in the incompatible interaction, 150 showed an increase in concentration ≥3-fold, whereas 62 were decreased by ≥3-fold. Regulated transcripts corresponded to known genes targeted by <italic>R</italic>
genes in plant pathosystems, such as inositol-3-P synthase, glutathione <italic>S</italic>
-transferases, and pathogenesis-related proteins. However, the transcript showing the highest rust-induced up-regulation encodes a putative secreted protein with no known function. In contrast, only a few transcripts showed an altered expression in the compatible interaction, suggesting a delay in defense response between incompatible and compatible interactions in poplar. This comprehensive analysis of early molecular responses of poplar to <italic>M. larici-populina</italic>
infection identified key genes that likely contain the fungus proliferation in planta.</p>
</div>
</front>
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<affiliations><list></list>
<tree><noCountry><name sortKey="Couloux, Arnaud" sort="Couloux, Arnaud" uniqKey="Couloux A" first="Arnaud" last="Couloux">Arnaud Couloux</name>
<name sortKey="Duchaussoy, Frederic" sort="Duchaussoy, Frederic" uniqKey="Duchaussoy F" first="Frédéric" last="Duchaussoy">Frédéric Duchaussoy</name>
<name sortKey="Duplessis, Sebastien" sort="Duplessis, Sebastien" uniqKey="Duplessis S" first="Sébastien" last="Duplessis">Sébastien Duplessis</name>
<name sortKey="Fluch, Silvia" sort="Fluch, Silvia" uniqKey="Fluch S" first="Silvia" last="Fluch">Silvia Fluch</name>
<name sortKey="Frey, Pascal" sort="Frey, Pascal" uniqKey="Frey P" first="Pascal" last="Frey">Pascal Frey</name>
<name sortKey="Kohler, Annegret" sort="Kohler, Annegret" uniqKey="Kohler A" first="Annegret" last="Kohler">Annegret Kohler</name>
<name sortKey="Le Thiec, Didier" sort="Le Thiec, Didier" uniqKey="Le Thiec D" first="Didier" last="Le Thiec">Didier Le Thiec</name>
<name sortKey="Martin, Francis" sort="Martin, Francis" uniqKey="Martin F" first="Francis" last="Martin">Francis Martin</name>
<name sortKey="Ningre, Nathalie" sort="Ningre, Nathalie" uniqKey="Ningre N" first="Nathalie" last="Ningre">Nathalie Ningre</name>
<name sortKey="Rinaldi, Cecile" sort="Rinaldi, Cecile" uniqKey="Rinaldi C" first="Cécile" last="Rinaldi">Cécile Rinaldi</name>
<name sortKey="Wincker, Patrick" sort="Wincker, Patrick" uniqKey="Wincker P" first="Patrick" last="Wincker">Patrick Wincker</name>
</noCountry>
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