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Interactions between the stolbur phytoplasma infection and the phloem functions in tomato

hal.structure.identifierInstitut Jean-Pierre Bourgin [IJPB]
hal.structure.identifierUniversité Paris-Saclay
dc.contributor.authorDE MARCO, Federica
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorEVEILLARD, Sandrine
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorBATAILLER, Brigitte
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorRAZAN, Frédérique
hal.structure.identifierInstitut des Sciences des Plantes de Paris-Saclay [IPS2 (UMR_9213 / UMR_1403)]
dc.contributor.authorGILARD, Françoise
hal.structure.identifierInstitut Jean-Pierre Bourgin [IJPB]
dc.contributor.authorLE HIR, Rozenn
hal.structure.identifierInstitut Jean-Pierre Bourgin [IJPB]
dc.contributor.authorVILAINE, Françoise
hal.structure.identifierInstitut Jean-Pierre Bourgin [IJPB]
dc.contributor.authorDINANT, Sylvie
dc.date.issued2015
dc.date.conference2015-10-06
dc.description.abstractEnIn higher plants, the allocation of photoassimilates is controlled by the phloem. Hormones, ions and macromolecules are also transported by phloem making it a superhighway for long distance signaling. The driving force for phloem mass flow results from the loading of carbohydrates in source organs. Key factors involved in the metabolism, loading and transport of sugars have been identified, and play a fundamental role in plant development. Such phloem functions can be hijacked by plant pathogens for their own benefit during infection and systemic colonization. Tomato is a model plant to investigate phloem activity and the relationships between source and sink organs. Transgenic lines altered in the expression of sucrose transporter genes (SUT1 and SUT2) are available (Hackel et al., 2006). Such plants showed abnormal development and modulation of genes involved in sucrose metabolism and transport. Phytoplasmas, which are phloem-restricted pathogens, are known to impair phloem transport causing severe consequences to the entire plant (Christensen, 2005). We have investigated the effect of ‘Candidatus phytoplasma solani’ infection on wild type and transgenic antisense SUT1 and SUT2 tomato lines. We have set up complementary approaches, including observations of plant anatomy and phloem organization, analyses of phloem sap metabolite profiles and studies on gene expression. The analyses revealed phloem hyperproliferation in infected plants and modulation of genes coding for proteins involved in sugars metabolism and callose synthesis. Moreover, one of the antisense lines showed a delay in symptoms appearance. The implications for plant phytoplasma interactions will thus be presented.
dc.language.isoen
dc.subject.entomato
dc.subject.enphloem
dc.subject.enmetabolomics
dc.subject.enphytoplasma
dc.title.enInteractions between the stolbur phytoplasma infection and the phloem functions in tomato
dc.typeCommunication dans un congrès
dc.subject.halSciences du Vivant [q-bio]
bordeaux.pagenp
bordeaux.conference.titleINUPRAG Meeting - 1st French-Swedish-Spanish Meeting
bordeaux.countryFR
bordeaux.conference.cityNancy
bordeaux.peerReviewedoui
hal.identifierhal-01602064
hal.version1
hal.invitednon
hal.proceedingsoui
hal.conference.organizerUmea Plant Science Centre (UPSC). SWE.
hal.conference.end2015-10-08
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01602064v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2015&rft.spage=np&rft.epage=np&rft.au=DE%20MARCO,%20Federica&EVEILLARD,%20Sandrine&BATAILLER,%20Brigitte&RAZAN,%20Fr%C3%A9d%C3%A9rique&GILARD,%20Fran%C3%A7oise&rft.genre=unknown


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