Afficher la notice abrégée

Maturation of nematode-induced galls in Medicago truncatula is related to water status and primary metabolism modifications.

hal.structure.identifierInstitut Sophia Agrobiotech [ISA]
dc.contributor.authorBALDACCI-CRESP, Fabien
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorMAUCOURT, Mickael
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorDEBORDE, Catherine
hal.structure.identifierInstitut Sophia Agrobiotech [ISA]
dc.contributor.authorPIERRE, Olivier
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorMOING, Annick
hal.structure.identifierInstitut Sophia Agrobiotech [ISA]
dc.contributor.authorBROUQUISSE, Renaud
hal.structure.identifierInstitut Sophia Agrobiotech [ISA]
dc.contributor.authorFAVERY, Bruno
hal.structure.identifierInstitut Sophia Agrobiotech [ISA]
dc.contributor.authorFRENDO, Pierre
dc.date.issued2015
dc.identifier.issn0168-9452
dc.description.abstractEnRoot-knot nematodes are obligatory plant parasitic worms that establish and maintain an intimate relationship with their host plants. During a compatible interaction, these nematodes induce the redifferentiation of root cells into multinucleate and hypertrophied giant cells (GCs). These metabolically active feeding cells constitute the exclusive source of nutrients for the nematode. We analyzed the modifications of water status, ionic content and accumulation of metabolites in development and mature galls induced by Meloidogyne incognita and in uninfected roots of Medicago truncatula plants. Water potential and osmotic pressure are significantly modified in mature galls compared to developing galls and control roots. Ionic content is significantly modified in galls compared to roots. Principal component analyses of metabolite content showed that mature gall metabolism is significantly modified compared to developing gall metabolism. The most striking differences were the three-fold increase of trehalose content associated to the five-fold diminution in glucose concentration in mature galls. Gene expression analysis showed that trehalose accumulation was, at least, partially linked to a significantly lower expression of the trehalase gene in mature galls. Our results point to significant modifications of gall physiology during maturation.
dc.language.isoen
dc.publisherElsevier
dc.subjectGiant cell
dc.subjectMetabolites
dc.subject.enInorganic ions
dc.subject.enMedicago truncatula
dc.subject.enRoot-knot nematode
dc.subject.enWater status
dc.title.enMaturation of nematode-induced galls in Medicago truncatula is related to water status and primary metabolism modifications.
dc.typeArticle de revue
dc.identifier.doi10.1016/j.plantsci.2014.12.019
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
bordeaux.journalPlant Science
bordeaux.page77-85
bordeaux.volume232
bordeaux.peerReviewedoui
hal.identifierhal-02630314
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02630314v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Plant%20Science&rft.date=2015&rft.volume=232&rft.spage=77-85&rft.epage=77-85&rft.eissn=0168-9452&rft.issn=0168-9452&rft.au=BALDACCI-CRESP,%20Fabien&MAUCOURT,%20Mickael&DEBORDE,%20Catherine&PIERRE,%20Olivier&MOING,%20Annick&rft.genre=article


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée