PADI3 and fungal infectious disease: To further investigate the role of AtPRX71 in qua2 resistance, we examined the expression of three defense-related genes, PHYTOALEXIN DEFICIENT 3 (PAD3), PATHOGENESIS-RELATED 1 (PR-1), and PLANT DEFENSIN 1.2 (PDF1.2), during fungal infection of WT, qua2, atprx71, and qua2 atprx71 plants.