Figure 4.

Developmental Changes Induced by the rpn12a-1 Mutation.

(A) Increased accumulation of anthocyanins in hypocotyls of 1-week- old rpn12a-1 seedlings. WT, wild type.

(B) Example of a monocotyledonous seedling in an rpn12a-1 population. Left, normal seedling; right, seedling with one cotyledon.

(C) Delayed leaf emergence of rpn12a-1 plants after 14 days of growth. Both wild-type and rpn12a-1 seedlings germinated at the same time.

(D) Reduced root elongation of an rpn12a-1 seedling after 14 days of growth. Red arrowheads indicate the root tips.

(E) Reduced cotyledon opening and petiole growth of an etiolated rpn12a-1 seedling after 10 days of growth in darkness.