Peptides of coat proteins of cucumber mosaic virus isolates infecting banana from Guangdongprovince were first analysed. The coat proteins of different isolates were digested with Chymotrypsin and Pepsin to produce different peptide patterns. They were evaluated by Western blotusing the antiserum to CMV-T37. It was found that MM contained more quantitative peptidesof antigen determinants to antiserum CMV-T37 than BS or CS did.
Serological characterization of three strains (BS, CS and MM) from Guangdong and one strain (HI) from Hawaii of cucumber mosaic virus infecting banana were first studied. These fourstrains were confirmed to belong to CMV DTL serotype. The serological relationships between BSand CS were closed while theprelationshi s between BS and MM were less closed.
