Aspergillus bertholletius sp. nov. from Brazil Nuts

Marta H. Taniwaki, John I. Pitt, Beatriz T. Iamanaka, Daniele Sartori, Marina V. Copetti, Arun Balajee, Maria Helena P. Fungaro, Jens Christian Frisvad

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    Abstract

    During a study on the mycobiota of brazil nuts (Bertholletia excelsa) in Brazil, a new Aspergillus species, A. bertholletius, was found, and is described here. A polyphasic approach was applied using morphological characters, extrolite data as well as partial beta-tubulin, calmodulin and ITS sequences to characterize this taxon. A. bertholletius is represented by nineteen isolates from samples of brazil nuts at various stages of production and soil close to Bertholletia excelsa trees. The following extrolites were produced by this species: aflavinin, cyclopiazonic acid, kojic acid, tenuazonic acid and ustilaginoidin C. Phylogenetic analysis using partial beta-tubulin and camodulin gene sequences showed that A. bertholletius represents a new phylogenetic clade in Aspergillus section Flavi. The type strain of A. bertholletius is CCT 7615 (=ITAL 270/06 = IBT 29228).
    Original languageEnglish
    JournalP L o S One
    Volume7
    Issue number8
    ISSN1932-6203
    DOIs
    Publication statusPublished - 2012

    Keywords

    • MULTIDISCIPLINARY
    • MYCOTOXINS

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