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- Volume 58, Issue 3
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f Two novel aflatoxin-producing Aspergillus species from Argentinean peanuts
- Authors: María B. Pildain1 , Jens C. Frisvad2 , Graciela Vaamonde1 , Daniel Cabral1 , Janos Varga3,4 , Robert A. Samson3
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1 1Faculty of Ciencias Exactas y Naturales, Pab. II, Lab. 69, University of Buenos Aires, CP EHA1428, Buenos Aires, Argentina 2 2Center for Microbial Biotechnology, BioCentrum-DTU, Building 221, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark 3 3CBS Fungal Biodiversity Centre, PO Box 85167, 3508 AD Utrecht, The Netherlands 4 4Department of Microbiology, Faculty of Sciences, University of Szeged, PO Box 533, H-6701 Szeged, Hungary
- CorrespondenceRobert A. Samson [email protected]
- First Published Online: 01 March 2008, International Journal of Systematic and Evolutionary Microbiology 58: 725-735, doi: 10.1099/ijs.0.65123-0
- Subject: New Taxa - Eukaryotic Micro-Organisms
- Cover date:




Two novel aflatoxin-producing Aspergillus species from Argentinean peanuts, Page 1 of 1
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Two novel species from Aspergillus section Flavi from different species of Arachis (peanuts) in Argentina are described as Aspergillus arachidicola sp. nov. and Aspergillus minisclerotigenes sp. nov. Their novel taxonomic status was determined using a polyphasic taxonomic approach with phenotypic (morphology and extrolite profiles) and molecular (β-tubulin and calmodulin gene sequences) characters. A. minisclerotigenes resembles Aspergillus flavus and Aspergillus parvisclerotigenus in producing aflatoxins B1 and B2, cyclopiazonic acid, kojic acid and aspergillic acid, but in addition it produces aflatoxins G1 and G2, aflavarins, aflatrem, aflavinines, parasiticolides and paspaline. This species also includes several isolates previously assigned to A. flavus group II and three Australian soil isolates. A. arachidicola produces aflatoxins B1, B2, G1 and G2, kojic acid, chrysogine and parasiticolide, and some strains produce aspergillic acid. The type strain of A. arachidicola is CBS 117610T =IBT 25020T and that of A. minisclerotigenes is CBS 117635T =IBT 27196T. The Mycobank accession numbers for Aspergillus minisclerotigenes sp. nov. and Aspergillus arachidicola sp. nov. are respectively MB 505188 and MB 505189 (http://www.mycobank.org).
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The GenBank/EMBL/DDBJ accession numbers for the β-tubulin and calmodulin gene sequences of the strains examined in this study are shown in Fig. 1 F1 and Supplementary Fig. S1.
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A neighbour-joining phylogenetic tree based on calmodulin gene sequences and colour versions of Figs 2 F2 and 3 F3 are available as supplementary material with the online version of this paper.
- Keyword(s): MP, maximum-parsimony, NJ, neighbour-joining, RI, retention index, CI, consistency index
SGM | Published by the Microbiology Society
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