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Architecture and permeability of post-cytokinesis plasmodesmata lacking cytoplasmic sleeves

hal.structure.identifierLaboratoire de biogenèse membranaire [LBM]
dc.contributor.authorNICOLAS, William J.
hal.structure.identifierLaboratoire de biogenèse membranaire [LBM]
dc.contributor.authorGRISON, Magali S.
hal.structure.identifierCentre de recherche de l'Institut Curie [Paris]
dc.contributor.authorTRÉPOUT, Sylvain
hal.structure.identifierLaboratoire de biogenèse membranaire [LBM]
dc.contributor.authorGASTON-DAUZON, Amélia
hal.structure.identifierLaboratoire de biogenèse membranaire [LBM]
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorFOUCHÉ, Mathieu
hal.structure.identifierBordeaux Imaging Center [BIC]
dc.contributor.authorCORDELIÈRES, Fabrice P.
dc.contributor.authorOPARKA, Karl
dc.contributor.authorTILSNER, Jens
hal.structure.identifierBordeaux Imaging Center [BIC]
dc.contributor.authorBROCARD, Lysiane
hal.structure.identifierLaboratoire de biogenèse membranaire [LBM]
dc.contributor.authorBAYER, Emmanuelle M.
dc.date.accessioned2024-12-20T03:04:56Z
dc.date.available2024-12-20T03:04:56Z
dc.date.issued2017
dc.identifier.issn2055-026X
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/204013
dc.description.abstractEnPlasmodesmata are remarkable cellular machines responsible for the controlled exchange of proteins, small RNAs and signalling molecules between cells. They are lined by the plasma membrane (PM), contain a strand of tubular endoplasmic reticulum (ER), and the space between these two membranes is thought to control plasmodesmata permeability. Here, we have reconstructed plasmodesmata three-dimensional (3D) ultrastructure with an unprecedented level of 3D information using electron tomography. We show that within plasmodesmata, ER–PM contact sites undergo substantial remodelling events during cell differentiation. Instead of being open pores, post-cytokinesis plasmodesmata present such intimate ER–PM contact along the entire length of the pores that no intermembrane gap is visible. Later on, during cell expansion, the plasmodesmata pore widens and the two membranes separate, leaving a cytosolic sleeve spanned by tethers whose presence correlates with the appearance of the intermembrane gap. Surprisingly, the post-cytokinesis plasmodesmata allow diffusion of macromolecules despite the apparent lack of an open cytoplasmic sleeve, forcing the reassessment of the mechanisms that control plant cell–cell communication.
dc.description.sponsorshipLa communication intercellulaire chez les plantes: implication des radeaux membranaires dans le fonctionnement des plasmodesmes. - ANR-14-CE19-0006
dc.language.isoen
dc.publisherNature Publishing Group
dc.title.enArchitecture and permeability of post-cytokinesis plasmodesmata lacking cytoplasmic sleeves
dc.typeArticle de revue
dc.identifier.doi10.1038/nplants.2017.82
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale/Botanique
dc.subject.halSciences du Vivant [q-bio]/Biologie cellulaire/Organisation et fonctions cellulaires [q-bio.SC]
bordeaux.journalNature Plants
bordeaux.page17082
bordeaux.volume3
bordeaux.hal.laboratoriesBiologie du Fruit & Pathologie (BFP) - UMR 1332*
bordeaux.issue7
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-01602621
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01602621v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Nature%20Plants&rft.date=2017&rft.volume=3&rft.issue=7&rft.spage=17082&rft.epage=17082&rft.eissn=2055-026X&rft.issn=2055-026X&rft.au=NICOLAS,%20William%20J.&GRISON,%20Magali%20S.&TR%C3%89POUT,%20Sylvain&GASTON-DAUZON,%20Am%C3%A9lia&FOUCH%C3%89,%20Mathieu&rft.genre=article


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