NR2C2 and infection: However, a mass of funguses was discovered in the roots 62 dpi, while massively hyphae were observed only in the ‘Baxi’ without isotianil treatment in the corms, while ‘Yunjiao No.1’ and ‘Baxi’ treated with isotianil no mycelia were observed (Figure 5) According to the tracking of the TR4 infection process over a period of time and across different plant parts, these results show that isotianil application can trigger the resistance of banana plants and prevent TR4 hyphae from infecting corms.