Transcript level for LOX2, AOS, AtVSP, and IAA1 in light-grown wild-type (WT) and axr1-24 seedlings. Numbers above lanes indicate time (h) after treatment was initiated. Hybridization probe for each row of samples is indicated to the left. A, Total RNA isolated from volatile MeJA-treated seedlings. B, RNA isolated after spraying with 1 μm IAA.