Figure 9.

Working model for DRUS1 and DRUS2 under osmotic stress. The DRUS1 function is demonstrated using the drus2 mutant, and the DRUS2 function is demonstrated using the drus1-1 mutant. An arrow indicates positive regulation and a line with a dash indicates negative regulation. Thick and thin lines imply more or less inhibition, respectively. A large circle indicates more accumulation of repressors, while a small circle denotes less accumulation. “Auxin signaling” in large size means active and in small size means inactive. SR, seminal root; AR, adventitious root; LR, lateral root.