Abstract

Aspergillus section Nigri populations isolated from seven growing regions from Argentina were characterizedby sequencing in order to identify species responsible for production of ochratoxin A (OTA) and fumonisins(FBs). Sequences of genes encoding calmodulin, ?-tubulin, the second largest subunit of RNA polymerase IIand translation elongation factor 1 alpha were analysed. The phylogenetic analysis showed the presence of sixlineages: A. carbonarius, A. tubingensis, A. niger, A. japonicus, A. homomorphus and A. foetidus grouped in fourmajor clusters. The molecular tools used allowed the identification for the first time of A. homomorphus fromvineyards. OTA production confirmed the importance of A. carbonarius as the main ochratoxigenic speciesisolated and, to a variable degree, of A. niger and A. tubingensis, which were by far the most commonlyoccurring species on grapes in Argentina. The only strains able to produce OTA and fumonisins (B2-B4) belongto the A. niger cluster.

Autore Pugliese

• Mule' Giuseppina , Susca Antonia , Logrieco Antonio Francesco , Stea Gaetano , Perrone Giancarlo

Tutti gli autori

• Chiotta M.L.; Susca A.; Stea G.; Mulè G.; Perrone G.; Logrieco A.; Chulze S.N.

Titolo volume/Rivista

International journal of food microbiology

Anno di pubblicazione

2011

ISSN

0168-1605

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

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