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dc.contributor.authorKnox, Kirsten
dc.contributor.authorWang, Pengwei
dc.contributor.authorKriechbaumer, Verena
dc.contributor.authorTilsner, Jens
dc.contributor.authorFrigerio, Lorenzo
dc.contributor.authorSparkes, Imogen
dc.contributor.authorHawes, Chris
dc.contributor.authorOparka, Karl
dc.date.accessioned2016-06-16T23:33:12Z
dc.date.available2016-06-16T23:33:12Z
dc.date.issued2015-08
dc.identifier.citationKnox , K , Wang , P , Kriechbaumer , V , Tilsner , J , Frigerio , L , Sparkes , I , Hawes , C & Oparka , K 2015 , ' Putting the squeeze on plasmodesmata : a role for Reticulons in primary plasmodesmata formation ' , Plant Physiology , vol. 168 , no. 4 , pp. 1563-1572 . https://doi.org/10.1104/pp.15.00668en
dc.identifier.issn0032-0889
dc.identifier.otherPURE: 201384090
dc.identifier.otherPURE UUID: 92da239f-c756-447d-abc6-5453dcdabf72
dc.identifier.otherScopus: 84939170191
dc.identifier.otherORCID: /0000-0003-3873-0650/work/60630842
dc.identifier.otherWOS: 000359317400033
dc.identifier.urihttps://hdl.handle.net/10023/9002
dc.descriptionThis work was supported by grant BB/J004987/1 from the British Biotechnology and Biological Sciences Research Council (BBSRC) to K.O and C.H and by The Leverhulme Trust (F/00 382/G) to C.H.en
dc.description.abstractPrimary plasmodesmata (PD) arise at cytokinesis when the new cell plate forms. During this process, fine strands of endoplasmic reticulum (ER) are laid down between enlarging Golgi-derived vesicles to form nascent PD, each pore containing a desmotubule, a membranous rod derived from the cortical ER. Little is known about the forces that model the ER during cell plate formation. Here, we show that members of the reticulon (RTNLB) family of ER-tubulating proteins in Arabidopsis (Arabidopsis thaliana) may play a role in the formation of the desmotubule. RTNLB3 and RTNLB6, two RTNLBs present in the PD proteome, are recruited to the cell plate at late telophase, when primary PD are formed, and remain associated with primary PD in the mature cell wall. Both RTNLBs showed significant colocalization at PD with the viral movement protein of Tobacco mosaic virus, while superresolution imaging (three-dimensional structured illumination microscopy) of primary PD revealed the central desmotubule to be labeled by RTNLB6. Fluorescence recovery after photobleaching studies showed that these RTNLBs are mobile at the edge of the developing cell plate, where new wall materials are being delivered, but significantly less mobile at its center, where PD are forming. A truncated RTNLB3, unable to constrict the ER, was not recruited to the cell plate at cytokinesis. We discuss the potential roles of RTNLBs in desmotubule formation.
dc.language.isoeng
dc.relation.ispartofPlant Physiologyen
dc.rightsCopyright © 2015 American Society of Plant Biologists. All rights reserved.en
dc.subjectQH301 Biologyen
dc.subjectBDCen
dc.subjectR2Cen
dc.subject.lccQH301en
dc.titlePutting the squeeze on plasmodesmata : a role for Reticulons in primary plasmodesmata formationen
dc.typeJournal articleen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.contributor.institutionUniversity of St Andrews. Biomedical Sciences Research Complexen
dc.identifier.doihttps://doi.org/10.1104/pp.15.00668
dc.description.statusPeer revieweden
dc.date.embargoedUntil2016-06-17


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