Potenzialità tossinogene di Fusarium spp. isolato da mais e prodotti derivati

Corn produced in Northem Italy is frequently contaminated by fumonisins, mycotoxins mainly produced by Fusarium verticillioides (Sacc.) Nirenberg and F. proliferatum (Matsus.) Nirenberg. The aim of the present work is the evaluation of the in vitro production of fumonisin B1 by F. verticillioides and F. proliferatum strains isolated from corn kernels and corn dry milling products. Fumonisin contamination in corn products and colture filtrates were evaluated by enzyme-linked immunosorbent assay (ELISA). All the isolated strains of F. verticillioides and F. proliferatum were able to produce very variable mycotoxin amounts in fumonisin-inducing liquid medium. Finally the results showed no relationship between fumonisin contamination in corn and the in vitro fumonisin production by the isolated strains