Biosecurity Research Articles

Mycotoxins produced by Fusarium spp. associated with Fusarium head blight of wheat in Western Australia

Document Type

Article

Publication Date

2-2-2012

Journal Title

Mycotoxin Research

ISSN

Print: 0178-7888 Electronic: 1867-1632

Keywords

Mycotoxin, Trichothecene, Enniatin, Chlamydosporol, Zearalenone, Fusarium graminearum, Fusarium acuminatum, Fusarium tricinctum

Disciplines

Agronomy and Crop Sciences | Biosecurity | Toxicology

Abstract

An isolated occurrence of Fusarium head blight (FHB) of wheat was detected in the south-west region of Western Australia during the 2003 harvest season. The molecular identity of 23 isolates of Fusarium spp. collected from this region during the FHB outbreak confirmed the associated pathogens to be F. graminearum, F. acuminatum or F. tricinctum. Moreover, the toxicity of their crude extracts from Czapek-Dox liquid broth and millet seed cultures to brine shrimp (Artemia franciscana) was associated with high mortality levels. The main mycotoxins detected were type B trichothecenes (deoxynivalenol and 3-acetyldeoxynivalenol), enniatins, chlamydosporol and zearalenone. This study is the first report on the mycotoxin profiles of Fusarium spp. associated with FHB of wheat in Western Australia. This study highlights the need for monitoring not just for the presence of the specific Fusarium spp. present in any affected grain but also for their potential mycotoxin and other toxic secondary metabolites.

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Digital Object Identifier (DOI)

https://doi.org/10.1007/s12550-011-0122-7