Upregulation of the plant protein remorin correlates with dehiscence and cell maturation: a link with the maturation of plasmodesmata?
Remorins are plant-specific proteins found associated with plasma membrane microdomains, called lipid rafts. Recently, we have shown that this lipid raft marker also accumulated at plasmodesmata, likely within the plasma membrane lining these structures. Here, we have investigated the gene expression and protein accumulation patterns of remorin at the organ and cell type levels. We show that remorin level is significantly increased in dehiscent, mature and ageing tissues, as well as in source parts of the leaves, where mature branched plasmodesmata are in majority. These results suggest that remorin predominantly associates with mature branched plasmodesmata.
Raffaele
Sylvain
S
Laboratoire de Biogenèse Membranaire, Université Victor Segalen, Bordeaux Cedex, France.
Bayer
Emmanuelle
E
Mongrand
Sébastien
S
D002352:Carrier Proteins / Q000235:genetics / Q000378:metabolism*; D048708:Cell Growth Processes / Q000235:genetics; D002462:Cell Membrane / Q000235:genetics / Q000378:metabolism; D015870:Gene Expression; D008055:Lipids; D021962:Membrane Microdomains / Q000235:genetics / Q000378:metabolism; D008565:Membrane Proteins / Q000235:genetics / Q000378:metabolism*; D010750:Phosphoproteins / Q000235:genetics / Q000378:metabolism*; D018515:Plant Leaves / Q000235:genetics / Q000378:metabolism; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism*; D031425:Plasmodesmata / Q000378:metabolism*; D014026:Nicotiana / Q000166:cytology / Q000235:genetics / Q000378:metabolism*; D015854:Up-Regulation
D002352:Carrier Proteins; D008055:Lipids; D008565:Membrane Proteins; D010750:Phosphoproteins; D010940:Plant Proteins; C103794:remorin