a) Summed 2D projections of PLA interactions (left) and co-localisation (right) (n=3) between PIN1 and PIN4 laterally bisected 2D-projected heat map. Treatments as indicated. b) Quantification of positive PLA interactions. n.t (no treatment) and 10µM NPA, n=4; 10µM IAA and 10µM IAA+ 10µM NPA; n=3. Error bars indicate standard deviation. 