An Ecological Analysis of the Herbivory-Elicited JA Burst and Its Metabolism: Plant Memory Processes and Predictions of the Moving Target Model
Figure 6
Spread of the JA burst from elicited to adjacent unelicited laminal sectors within a leaf were highly variable and likely depended on the connectivity of minor vasculature across sectors.
(A) Of the 98 elicited leaves that accumulated JA in the elicited sectors (SE*) approximately half did not accumulate more than 500 ng/g JA in either of the adjacent, non-elicited sectors located proximal or distal to SE* (SB and ST), while the others accumulated JA in either SB, ST, or both adjacent sectors. Only 2 of the 112 leaves accumulated detectable quantities of JA in SO (data not shown), the sector on the opposite side of the midrib from SE*. (B) Crystal violet dye (2%) applied to the elicitation sites allowed the visualization of apoplastic transport within leaves. Dye either was (1) not taken up, or transported (2) towards the base of the leaf, (3) the tip of the leaf, or (4) in both directions.