Figure 9.

Rescue of the Short Petiole and Dwarf Phenotypes of er-105 by ER Promoter–Driven Expression of Constitutively Active MKK4 and MKK5.

(A) Four-week-old plants of Col-0, er-105, and two representative T2 lines of P_ER:MKK4^DD and P_ER:MKK5^DD transgenic plants in the er-105 background. Bar = 3 cm.

(B) Eight-week-old plants of the genotypes shown in (A). Bar = 10 cm.

(C) Plant heights of 8-week-old plants of the genotypes shown in (A). Bars represent average values + sd (n = 10 to 15 plants per genotype). Asterisks above the brackets indicate significant differences between the sample group(s) and er-105 (P < 0.0001, Student’s t test).

[See online article for color version of this figure.]