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Functional characterization of a new plant DYNAMIN protein controlling cell shape, through actin cytoskeleton dynamics

hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorMUSSEAU, Constance
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorJORLY, Joana
dc.contributor.authorMÜLLER, Sabine
dc.contributor.authorHERRMANN, Arvid
dc.contributor.authorSORENSEN, Iben
dc.contributor.authorROSE, Jocelyn K.C.
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorCHEVALIER, Christian
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorROTHAN, Christophe
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorGÉVAUDANT, Frédéric
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorFERNANDEZ-LOCHU, Lucie
dc.date.conference2018-06-25
dc.description.abstractEnA forward genetic strategy, combining tomato EMS mutant variability and mapping-by-sequencing (Garcia et al., 2016; Musseau et al., 2017) allowed the identification of a DYNAMIN protein, as a key regulator of tomato fruit tissue morphology. DYNAMINs (DYNs) are large GTPase that can interact with cytoskeleton-associating proteins. In animals, DYNs are reported to be involved in cytokinesis, membrane trafficking, cytoskeletal dynamics and pathogen resistance (Konopka et al., 2006; Praefcke & Mcmahon, 2004). Plants present homologs for most dynamins found in animals, with some proven to be functional redundant. However, the role and molecular mechanisms of this particular dynamin have never been described in plants so far.In order to investigate its role in plants, experiments were conducted in both tomato and Arabidopsis thaliana models. dyn mutants share common aberrant cell size and shape, affecting pericarp cells in tomato and trichomes in Arabidopsis. Aberrant Arabidopsis trichome morphology is strikingly similar to the well described Arabidopsis mutants affected in the WAVE and ARP2/3 pathways, that are involved in actin filament nucleation (Isner et al., 2017; Sambade et al., 2014; Zimmermann et al., 2004). Our data suggest a role of this plant dynamin in actin cytoskeleton remodeling, supporting rapid cell elongation.
dc.language.isoen
dc.title.enFunctional characterization of a new plant DYNAMIN protein controlling cell shape, through actin cytoskeleton dynamics
dc.typeAutre communication scientifique (congrès sans actes - poster - séminaire...)
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
bordeaux.conference.titleInternational Conference on Arabidopsis Research -ICAR
bordeaux.countryFI
bordeaux.conference.cityTurku
bordeaux.peerReviewedoui
hal.identifierhal-03325300
hal.version1
hal.invitednon
hal.proceedingsnon
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03325300v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=MUSSEAU,%20Constance&JORLY,%20Joana&M%C3%9CLLER,%20Sabine&HERRMANN,%20Arvid&SORENSEN,%20Iben&rft.genre=conference


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