Updated publication reference for PubMed record(s): 31286648. To compare four- and seven-day-old Arabidopsis thaliana plasmodesmata proteome, the identification and the relative amount of proteins in plasmodesmata, cell wall and total cell extracts were performed using fractions purified from four- and seven-day-old liquid culture cells of A. thaliana. The relative amount for each protein was determined with a label-free quantification method. Four biological replicates of each fraction were used for quantification.