Figure 4.

Wound-induced systemic potentials between the root and SE/CCs in non-neighbor leaves of Arabidopsis thaliana wild type and single GLR mutants. Typical wound- induced potentials of a wild type plant (A), as well as of the single mutants glr3.3a (B), glr3.6b (C), and glr3.5-a (D), recorded by EPG in the configuration illustrated in the inset are shown. Panel C shows a long, continuous EPG recording from a glr3.6b mutant that is broken into 3 segments. Arrows indicate the time of wounding. The results from both T-DNA alleles of GLR3.5 were similar. Results from glr3.5-b are shown in Fig. S2. The time of wounding is indicated with arrows.