Figures & data
Figure 1. JA-deficient mutant opr7opr8 has larger seedling size than WT. (A) opr7opr8 showed longer coleoptile and sheath of first leaf than WT. (B) opr7opr8 showed longer first and second leaf blades than WT. (C) The length measurements of coleoptiles and first and second leaf sheaths and blades of opr7opr8 and WT.
Figure 2. JA inhibits lateral root growth in maize seedlings. WT (A) and Mutant (B) seeds were grown on germination paper at 25°C under white light. Images were taken at sixth day after planting. opr7opr8 (B) showed more and longer lateral roots (indicated by arrows) than WT (A), and similar length of primary roots with WT. Scale bar indicates 1 cm.
Figure 3. JA is involved in photomorphogenesis of maize coleoptile, indicated by the distinct phenotype of opr7opr8 mutant in darkness (A, B) and red light (C, D). Germinated under darkness at 32°C for 7 days, the mesocotyl of opr7opr8 (B) is much longer than WT (A); germinated under continuous red light at 32°C for 5 days, the mesocotyl and coleoptyl of opr7opr8 (D) is significantly longer than WT (C), while the leaf shoot of the mutant (D) is shorter than WT (C). The arrows indicate the coleoptile node and the scale bar represents 1 cm.
