Figure 3.

The Effects of npy Mutations on Auxin Responses.

(A) The auxin reporter DR5–GUS expression in wild-type (left) and npy2 npy3 npy4 npy5 quadruple mutants (right) are shown. More than 10 seedlings for each genotype were analyzed. The typical staining patterns were shown.

(B) Auxin response in npy2 npy3 npy4 npy5 quadruple mutants. Plants were grown vertically for 4 d and then transferred to media with and without IAA. The root elongation of wild-type and npy2 npy3 npy4 npy5 quadruple mutants were measured after additional 4 d. At least 20 seedlings for each genotype and each auxin concentration were measured.