Figure 4.
Effect of ethylene and MCP pretreatments on susceptibility of tomato lines overexpressing prosystemin (PSoe), impaired in prosystemin (PSas) or jasmonate (def1) synthesis in comparison with their wild-type progenitor tomato cv Castlemart (Cast). A, Percentage of expanding lesions at 96 hpi. B, Lesion expansion rate over the period from 48 to 72 hpi. Treatments were with 1 μL L−1 ethylene or 10 nL L−1 MCP. Data were pooled from three independent experiments, with a total of 18 to 21 plants per treatment. Each plant was considered as a replicate. Bars show se.