Figure 7.

Gain of function of peroxidase increases LR emergence. Transgenic plants that express PER2 (iox-PER2; A) or PER7 (iox-PER7; B) under the control of an estradiol-inducible promoter were grown in medium with or without estradiol for 10 d. Root length (mm), number of total emerged LRs (eLR), and emerged LR density (eLR per mm) were quantified. Two different PER2- or PER7-overexpressing lines were analyzed independently along with their corresponding controls. *P < 0.05, **P < 0.01, ***P < 0.001 by two-sided Student’s t test (n ≥ 60).