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La tolérance du tournesol aux maladies.

Authors: Vincourt, Patrick; As Sadi, F.; Vear, Felicity; Bordat, Amandine; Tourvieille de Labrouhe, Denis; Godiard, Laurence;

La tolérance du tournesol aux maladies.

Abstract

La culture du tournesol est confrontée aux attaques de différents bioagresseurs. En France, il s’agit essentiellement du mildiou Plasmopara halstedii, du sclérotinia Sclerotinia sclerotiorum, du phomopsis Diaporthe helianthi, et du phoma Phoma macdonaldii dont les attaques au collet entrainent le dessèchement précoce. Les efforts de recherche et de sélection ont permis de conserver à cette culture son statut respectueux de l’environnement. Cependant, les dialogues moléculaires entre la plante et ces différents pathogènes et qui aboutissent à l’immunité ou à la sensibilité, ainsi que sa variabilité génétique, sont encore largement inconnus. Après une revue des principaux résultats récents concernant l’interaction entre le tournesol et ces pathogènes, nous soulevons deux questions d’intérêtpour la poursuite de ces recherches : celle de la répartition des rôles et de la hiérarchisation des questions de recherche d’une part, et d’autre part celle du regard à porter sur les réseaux de gènes que révèle l’analyse du transcriptome grâce aux nouvelles technologies de séquençage.

The sunflower crop is subjected to several diseases, among of which Downy Mildew, Sclerotinia, Phomopsis and premature death caused by Phoma macdonaldii are the most important in France today. The research and breeding efforts during the past fifty years have been efficient enough to ensure an “environmentally safe” status to this cultivation. However, little is known about the moleculartalk which leads to immunity or susceptibility between the plant and the pathogens as well as about its genetic variability. After a review of the main recent results on the these sunflower*microorganisms interactions, we are discussing on two questions of interest for the research perspectives: How to establish the research priorities? How to decipher the genes networks revealed by transcriptome analysis with a greater involvement of the genetic variability thanks to the development of the new sequencing technologies?

Country
France
Keywords

[SDV.SA]Life Sciences [q-bio]/Agricultural sciences, bioagresseur, effecteur, [SDV.SA] Life Sciences [q-bio]/Agricultural sciences, helianthus annuus, helianthus annuus;résistance;sclerotinia;phomopsis;phoma;effecteur;pathogénicité, phoma, pathogénicité, sclerotinia, Helianthus annuus ; Résistance ; Sclerotinia ; Phomopsis ; Phoma ; Effecteur ; Pathogénicité, pathogène des semences, résistance, phomopsis, mildiou du tournesol

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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