OLR1 and infection: To further investigate the mechanisms underlying the differences in disease resistance between the disease-resistant variety Weston and the susceptible variety Longdong, we further determined the expression of phytohormone response and synthesis-related genes, such as PR1 and PR2 associated with salicylic acid response, LOX1 associated with jasmonic acid, and ERF1 associated with ethylene response, in plant root samples after infection at different time points.