Side-by-side experiments have shown that these two AFPs are more active in vitro against P. digitatum than the previous AFP from A. giganteus and PAF from P. chrysogenum, and that both AfpA and AfpB show protective effect against the infection of fungal plant pathogens (Garrigues et al., 2017, 2018; Shi et al., 2019). This evidence concerns the gene AFP and infection.