In the case of p3 in3, M3 and 3 mutations suppressed the auxin activity, and thus root hair inhibition, of PIN3 by interrupting its trafficking to the PM (to see whether it proper for PIN7, and PIN1: We examinse the subcellular localizatio'n of the mutant forms of these PINs).
In the case of PIN3, 3 m1 and M3 mutations suppressed the auxin efflux activity, and thus root hair inhibition, of PIN3 by interrupting its trafficking to the PM . To test whether this was the same for PIN1, PIN2, and PIN7, we examined the subcellular localization of the mutant forms of these PINs.