Figure 1.

Ozone induction of ethylene emission and tissue damage in transgenic cv Ailsa Craig (AC) tomato harboring an LE-ACO1::uidA construct. A, Dose response of ethylene evolution. cv Ailsa Craig plants were exposed to 0 to 250 nL L⁻¹ ozone for 5 h (indicated by the line above the graph). Ethylene evolution was determined from plants collected at times shown. B, Leaf injury in ozone-exposed LE-ACO1::uidA plants treated as in A. Leaf injury was assessed 24 h later in leaves 1 to 8 from the top of the plant. Means ± se (n = 3).