Two novel aflatoxin-producing Aspergillus species from Argentinean peanuts

María B. Pildain, Jens C. Frisvad, Graciela Vaamonde, Daniel Cabral, J. Varga, Robert A. Samson

Research output: Contribution to journalArticle

161 Citations (Scopus)

Abstract

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).

Original languageEnglish
Pages (from-to)725-735
Number of pages11
JournalInternational Journal of Systematic and Evolutionary Microbiology
Volume58
Issue number3
DOIs
Publication statusPublished - Mar 2008

Fingerprint

Aflatoxins
Aspergillus
aflatoxins
peanuts
acid
kojic acid
Aspergillus flavus
Aflatoxin B1
new species
aflatoxin B1
aflatoxin G2
aflatoxin G1
aflatoxin B2
cyclopiazonic acid
Arachis
acids
Argentina
calmodulin
Calmodulin
Tubulin

ASJC Scopus subject areas

  • Microbiology
  • Ecology, Evolution, Behavior and Systematics
  • Applied Microbiology and Biotechnology
  • Immunology

Cite this

Two novel aflatoxin-producing Aspergillus species from Argentinean peanuts. / Pildain, María B.; Frisvad, Jens C.; Vaamonde, Graciela; Cabral, Daniel; Varga, J.; Samson, Robert A.

In: International Journal of Systematic and Evolutionary Microbiology, Vol. 58, No. 3, 03.2008, p. 725-735.

Research output: Contribution to journalArticle

Pildain, María B. ; Frisvad, Jens C. ; Vaamonde, Graciela ; Cabral, Daniel ; Varga, J. ; Samson, Robert A. / Two novel aflatoxin-producing Aspergillus species from Argentinean peanuts. In: International Journal of Systematic and Evolutionary Microbiology. 2008 ; Vol. 58, No. 3. pp. 725-735.
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