Fig. 5. Antagonistic effect of phage peptides on both the ability of KN1, CMV-MP and W2 fraction proteins to increase plasmodesmal SEL and the capacity of KN1-FITC to move cell to cell. Histograms represent the percentage inhibition of movement observed in experiments in which 11 kDa F-dextran was coinjected with KN1, CMV-MP or W2 fraction proteins and ph-CMVpep2, ph-CMVpep3 and KN1pep, respectively. Limited antagonism between the phage peptides and KN1-FITC movement is illustrated by the histograms presented on the right. [The % antagonism values were calculated relative to the percentage cell-to-cell movement obtained in ph-empty control experiments (see Table I).]