Figure 1: (a) Symptoms produced by Cucumber green mottle mosaic virus on C. sativus plants. (b) Serological assay (DIBA) showing the results of mild strain selection of CGMMV-Pk isolate treated at low temperature (12-16°C). Isolate number 47 and 81 were giving very strong positive signal in DIBA assay, but no symptoms on C. sativus plants. (c) Electron micrograph of C. sativus sample infected with mild strain Pk-47, showing large number of CGMMV viral particles.