The effects of ein2 are partly mediated through the LIP1/LONG1 module. A, Interaction of ein2 and long1 in control of internode length, leaf expansion, and stem thickness. Internode length was measured as the length between nodes 1 and 3. Leaflet area was estimated as the product of length and width of the larger leaflet from the first true foliage leaf (node 3). Values represent means ± se for n = 8 to 12. B, Comparison of 12-d-old lip1 and ein2 lip1 double-mutant plants grown in darkness. C, Reversion of lip1 ein2 elongation phenotype by long1 in plants grown under natural daylight in the greenhouse. Internode length was measured as the length between nodes 1 and 6. Values represent means ± se for n = 7 to 10. WT, Wild type.