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The ein2 mutation overcomes phenotypes associated with ethylene overproduction in the phyA phyB double mutant. A, Effect of the ein2 mutation on internode lengths in wild-type (WT) and phyA, phyB, and phyA phyB mutant backgrounds. Values represent means ± se for n = 8 to 12. B, Shoot apex of 4-week-old plants. C, Representative leaf from node 5 of a 4-week-old plant. Plants were grown in the greenhouse under a natural daylight photoperiod extended to 18 h.
