Transcriptional changes in two types of pre-mycorrhizal roots and in ectomycorrhizas of oak microcuttings inoculated with Piloderma croceum
| hal.structure.identifier | Interactions Arbres-Microorganismes [IAM] | |
| dc.contributor.author | FRETTINGER, Patrick | |
| hal.structure.identifier | Biodiversité, Gènes & Communautés [BioGeCo] | |
| dc.contributor.author | DERORY, Jérémy | |
| hal.structure.identifier | Leipzig University / Universität Leipzig | |
| dc.contributor.author | HERMANN, Sylvie | |
| hal.structure.identifier | Biodiversité, Gènes & Communautés [BioGeCo] | |
| dc.contributor.author | PLOMION, Christophe | |
| hal.structure.identifier | Interactions Arbres-Microorganismes [IAM] | |
| dc.contributor.author | LAPEYRIE, Frédéric | |
| hal.structure.identifier | Friedrich-Schiller-Universität = Friedrich Schiller University Jena [Jena, Germany] | |
| dc.contributor.author | OELMÜLLER, Ralf | |
| hal.structure.identifier | Interactions Arbres-Microorganismes [IAM] | |
| dc.contributor.author | MARTIN, Francis | |
| hal.structure.identifier | Leipzig University / Universität Leipzig | |
| dc.contributor.author | BUSCOT, Françoise | |
| dc.date.issued | 2007 | |
| dc.identifier.issn | 0032-0935 | |
| dc.description.abstractEn | The formation of the ectomycorrhizaimplies an alteration in gene expression of both theplant and fungal partners, a process which starts beforethe formation of any symbiotic interface. However, littleis known on the regulation pattern occurring indiVerent parts of the root system. Our experimentalsystem consisting of a micropropagated oak with ahierarchical root system was shown to exhibit symbiosisfunctional traits prior to any mycorrhizal tissuediVerentiation after the inoculation with the basidiomycetePiloderma croceum. Using a cDNA array, theplant gene regulation was analyzed in the pre-mycorrhizalphase. Seventy-Wve transcripts showed diVerentialexpression in pre-mycorrhizal lateral and principalroots, and both root types exhibited diVerent sets ofresponsive genes. For transcripts selected according toa statistical analysis, the alteration in gene expressionwas conWrmed by RT-PCR and quantitative real-timePCR. Genes regulated in pre-mycorrhizal lateral rootsdisplayed an almost identical expression in mycorrhizas.In contrast, genes regulated in pre-mycorrhizalprincipal roots were often regulated diVerently in ectomycorrhizas.Down-regulation aVected most of the regulatedgenes involved in metabolism, whereas most ofthe regulated genes related to cell rescue functions,water regulation and defence response were up-regulated.Regulation of such genes could explain theincrease of global resistance observed in mycorrhizalplants. | |
| dc.language.iso | en | |
| dc.publisher | Springer Verlag | |
| dc.subject.en | ECTOMYCORHISE | |
| dc.title.en | Transcriptional changes in two types of pre-mycorrhizal roots and in ectomycorrhizas of oak microcuttings inoculated with Piloderma croceum | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1007/s00425-006-0355-4 | |
| dc.subject.hal | Sciences du Vivant [q-bio]/Génétique/Génétique des plantes | |
| bordeaux.journal | Planta | |
| bordeaux.page | 331-340 | |
| bordeaux.volume | 225 | |
| bordeaux.issue | 2 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-02658206 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-02658206v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Planta&rft.date=2007&rft.volume=225&rft.issue=2&rft.spage=331-340&rft.epage=331-340&rft.eissn=0032-0935&rft.issn=0032-0935&rft.au=FRETTINGER,%20Patrick&DERORY,%20J%C3%A9r%C3%A9my&HERMANN,%20Sylvie&PLOMION,%20Christophe&LAPEYRIE,%20Fr%C3%A9d%C3%A9ric&rft.genre=article |
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