Figure 4.

Oxylipin concentrations in leaves of barley plants grown in control or −K media. (a) Oxylipin concentrations in leaves of barley plants grown in control (black bars) or K‐free (open bars) media. Results from tip, middle, and base segments from the emerged blade of the second leaf of 20 plants was pooled for each sample, and means (±SE) of three independently grown and treated batches of plants are shown (n = 3). (b) Position of oxylipins in the JA‐biosynthesis pathway. Compounds measured are shown in bold; genes encoding enzymes or downstream targets are shown in italics