Figure 2.

Phenotype of the lacs6 lac7 Double Mutant.

(A) Wild-type A. thaliana (WT), lacs6, lacs7, and lacs6 lacs7 double mutant (lacs6/7) were grown for 7 d on medium without sucrose. (Seedlings were rearranged on an agar plate before being photographed.)

(B) Seedlings of wild-type (WT) and lacs6 lacs7 (lacs6/7) were grown on media with (+suc) or without (−suc) sucrose supplementation and photographed 2, 6, and 10 d after imbibition (DAI).

(C) lacs6 lacs7 double mutant seedlings after 5-weeks growth in the absence of sucrose.

(D) A lacs6 lacs7 double mutant plant was maintained on medium without sucrose for 3 weeks and then transferred to medium containing 1% sucrose for 16 d.

(E) Same plant as in (D) from beneath. The arrow indicates a vestigial cotyledon.

Bars = 2 mm in (A) and 0.4 mm in (B) to (E).