Membrane dynamics of sugar transports in tobacco-microbe interactions - Archive ouverte HAL
Communication Dans Un Congrès Année : 2017

Membrane dynamics of sugar transports in tobacco-microbe interactions

Christophe Der
  • Fonction : Auteur
  • PersonId : 1205015
Jérôme Fromentin
Nathalie Leborgne-Castel
  • Fonction : Auteur
  • PersonId : 1204872
Daniel Wipf

Résumé

Plants can influence microorganism population through exudation of sugars notably as carbon source. Indeed, the type of plant-microorganism interaction (PMI) is linked to the trophic exchanges between plant and microorganism. Microorganisms are thus able to “manipulate” the host to modify sugar fluxes. In mycorrhizal symbiosis, the plant has a supply of nutrients by the fungal partner, which in return receives sugars. In pathogenic relationship, the microorganism will divert sugars provided by the plant without compensation. Despite identification of sugar transporters at biotrophic interfaces, molecular and cellular mechanisms by which microorganisms operate the distribution of sugars are poorly understood. Our aim is to characterize plant membrane dynamics related to sugar transport in PMI. The project is conducted on various tobacco cell suspensions. First, we analyzed cell responses to different microbial molecule treatments (mycorrhizal factors and elicitor). Secondly, we measured uptake of sugars in cells upon microbial molecules. Then, we followed expression of genes encoding sugar transporters in response to microbial molecules using screening gene and protein databases of tobacco sugar transporters.
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Dates et versions

hal-01605438 , version 1 (02-10-2017)

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  • HAL Id : hal-01605438 , version 1
  • PRODINRA : 405650

Citer

Carole Pfister, Odile Chatagnier, Christophe Der, Jérôme Fromentin, Nathalie Leborgne-Castel, et al.. Membrane dynamics of sugar transports in tobacco-microbe interactions. 6. Journée des Doctorants de l’UMR 1347 Agroécologie, Institut National de la Recherche Agronomique (INRA). FRA., Apr 2017, Dijon, France. ⟨hal-01605438⟩
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