Figure 9.

Position of PH3 and TTG2 in the Regulatory Circuitries That Control Vacuolar Acidification and Hair Development.

(A) Regulatory circuit containing PH3 in petunia.

(B) Regulatory circuit containing TTG2 in Arabidopsis.

Complexes of MYB, bHLH, and proteins are shown as white ovals, marked with M, b, and W, respectively; the encoding genes are indicated on the left in italics. WRKY proteins are indicated as a black oval, marked W. The question mark indicates that regulation of AHA10 is inferred but not experimentally proven.