DPV292 Figure 09

Papaya ringspot virus

Sodium dodecyl sulphate (SDS)-immunodiffusion tests illustrating close relationship of types P and W isolates of papaya ringspot virus and their distinction from certain other viruses. A = antiserum to a type W isolate. The other wells contain SDS-treated leaf sap: 1 = type W isolate in squash; 2= type P isolate in squash; 3 = healthy squash; 4 = watermelon mosaic virus 2 in squash; 5 = zucchini yellow mosaic virus in squash; 6 = type P isolate in papaya; 7 = healthy papaya; 8 = papaya mosaic virus (potexvirus) in papaya.