摘要：AbstractSeven species ofFusariumisolated from rotten bananas were studied for their mycotoxigenicity. The first pathogenicity assay revealed symptoms ofFusariumrot infection when theFusariumisolates were inoculated to wounded banana fruits. The second pathogenicity assay, where seedlings ofNicotianawere inoculated withFusariumisolate filtrations, revealed evidence for the pathogenicity for six of theFusariumspecies. One species,Fusarium oxysporumdid not display any pathogenicity symptoms onNicotianaseedlings. It neither produced the mycotoxins fumonisin, zearalenone and deoxynivalenol, which were produced by all of the other species. However, the mycotoxin concentrations did not correlate with the disease severity in the pathogenicity assay with banana fruits. We conclude that that pathogenicity is a complex issue regulated by many factors and several toxins and the pathogenicity assessment needs bioassays with a multi-mycotoxin approach.
