An Ecological Analysis of the Herbivory-Elicited JA Burst and Its Metabolism: Plant Memory Processes and Predictions of the Moving Target Model
Figure 2
Whole-leaf elicitation: a single OS elicitation induces a robust, transient JA burst even in a genetically heterogeneous native population of N. attenuata, but JA accumulations in response to repeated elicitations are not additive.
(A) A single whole-leaf OS elicitation of leaves on rosette stage plants from a native population growing at the Lytle Ranch Preserve, St. George, Utah, USA, resulted in a robust, transient JA burst similar to that observed in genetically homogeneous glasshouse-grown plants. Leaves were elicited by wounding with a pattern wheel and the resulting puncture wounds were immediately treated with either water (open squares, dotted line) or 10 µl of 1∶5 diluted M. sexta OS in water (solid triangles, solid line). (B) Repeated whole-leaf OS-elicitations (1 per h) of leaves from rosette stage, inbred plants grown in the glasshouse suggest competition between suppression and maintenance of JA accumulation. Arrows indicate time of each elicitation. All values represent mean±S.E. (n = 5).