Figure 3.

Maize converts IAOx and PAOx to IAA and PAA, respectively.

A) Free PAA content of maize leaves fed with water or PAOx (N=3). B) Free IAA content of maize leavs fed with water or IAOx (N=2). Data represent mean ± SD. First leaves from 12-day-old maize plants were incubated in either water or water containing 30 μM of aldoximes for 24 hours. C) LC-MS chromatograms for the D₅-PAA standard (bottom) and endogenous D₅-PAA in maize leaves after feeding with water (top) or D₅-PAOx (middle). D) LC-MS chromatograms for the D₅-IAA standard (bottom) and endogenous D₅-IAA in maize leaves after feeding with water (top) or D₅-IAOx (middle). The means were compared by one-way ANOVA, and statistically significant differences (P < 0.05) were identified by Tukey’s test and indicated by letters to represent difference among groups.