Fig. 4. Leaf venation pattern in bop1-1 mutant plants. (A,C) Cotyledons of
24-day-old wild type (A) and bop1-1 mutant (C). (B,D) First rosette
leaves of 16-day-old wild type (B) and bop1-1 mutant (D). Note that
the reticulate patterns of venation are distinct in the regions of ectopic
outgrowth on petioles of cotyledons and rosette leaves (C,D, arrows). Bars, 1
mm.