Toxigenicity of Fusarium species and subspecies in section Gibbosum from different regions of Australia

摘要: The toxicity of cultures Fusarium species and subspecies in section Gibbosum from soils locations various climatic regions Australia was determined using a chick bioassay. Most F. compactum acuminatum subsp. armeniacum were found to be highly toxic irrespective geographical origin. other viz; acuminatum, equiseti, scirpi , longipes shown non-toxic or low toxicity. Selected culture extracts compactum, analysed by gas chromatography after clean up hydrolysis for the four main trichothecene families, namely; nivalenol (NIV), deoxynivalenol (DON), scirpentriol (Sctol) T-2 tetraol (T-2tol). Some produce high levels T-2tol derivatives while others produced Sctol derivatives. Cultures trace In contrast, only detected hydrolysed . GC/MS analysis individual indicated that trichothecenes either acuminatin diacetoxyscirpenol respectively, mainly toxin neosolaniol.