Specificity analyses of three MAbs by ACP-ELISA. A: Specificity analyses of three MAbs with five tested plant viruses. RBSDV, SRBSDV, RDV, RRSV and RSV were rice plants infected with RBSDV, SRBSDV, RDV, RRSV and RSV respectively. Healthy rice was a healthy rice plant. Maize+ and Maize– were a RBSDV-infected maize plant and a healthy maize plant, respectively. Wheat+ and Wheat– were a RBSDV-infected wheat plant and a healthy wheat plant, respectively. B: Specificity analyses of three MAbs with viruliferous insect vectors. RBSDV, SRBSDV, RRSV, RSV, RDV, CK- were RBSDV-infected small brown planthopper, SRBSDV-infected white-backed planthopper, RRSV-infected brown planthopper, RSV-infected small brown planthopper, RDV-infected leafhopper and non-viruliferous small brown planthopper, respectively.