At 24 hpi, the same three genes turned out to be strongly up-regulated (>20-fold; Figure 7C), and all the genes analyzed were modulated: PIN2 was significantly upregulated only in control + infection plants; GluA, Pti5, PGIP, ACO1, and PR1 were upregulated in both control + infection and Pep 4 + infection plants, and their relative expression reached a similar fold-change value in control + infection and Pep 4 + infection; Lox1.1 was instead strongly down-regulated in both control + infection and Pep 4 + infection plants (>50-fold; Figure 7C). The gene discussed is ACO1; the disease is infection.