Abstract

Fusarium proliferatum is together with Fusarium verticillioides the main source of fumonisins, a health riskmycotoxin, contaminating agro-products. Contrary to F. verticillioides, it colonizes a wide range of hostplants besides maize, such as wheat or barley among others, in particular in certain regions (SouthernEurope). The phylogenetic study performed in this work using a wide sample of isolates from diverse hostsand origins revealed a high variability, while no host preferences could be sustained. A real time RT-PCRassay was also developed specific for F. proliferatum on the basis on fumonisin biosynthetic gene, FUM1,which allowed discrimination from F. verticillioides. FUM1 gene expression showed a high and significantcorrelation (0.77) with fumonisin production, representing a valuable tool for specific and sensitive diagnosisof metabolically active fumonisin-producing F. proliferatum isolates and for evaluating the influenceon environmental conditions on FUM1 gene regulation. The ability to produce fumonisins was also widelydistributed indicating that F. proliferatum can represent a risk for health similarly to F. verticillioides.Moreover, the wide range of plants susceptible to colonization by F. proliferatum suggests that the impact offumonisin risk in a number of commodities might need a revision.

Autore Pugliese

• Moretti Antonio

Tutti gli autori

• M. Jurado; P. Marin; C. Callejas; A. Moretti; C. Vazquez; M. T. Gonzalez-Jaen

Titolo volume/Rivista

Food microbiology

Anno di pubblicazione

2010

ISSN

0740-0020

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

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Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

Non Disponibile