ANALYSIS OF SDS-DISSOCIATED PROTEINS OF PATHOGENIC AND NONPATHOGENIC FUSARIUM SPECIES

SDS - dissociated proteins from eight isolates belonging to three Fusa rium species were assessed and compared using polyacrylamide gel elect rophoresis. Intra and inter specific variation in banding patterns wer e analyzed both qualitatively and quantitatively. Special emphasis was placed on variability of protein banding pattern between two nonpatho genic strains of F. oxyspor um (C5 and C14). Protein profiles from hos t-associated isolates were distinct, and each isolate showed a uniquel y characteristic profile. Attempts were made to provide information on the genetic system controlling pathogenicity, compared to nonpathogen icity, at the protein level. The data obtained from electrophoresis su pport the potential use of this experimental approach to help distingu ish between different Fusarium isolates.