Authors: Varga, János; Frisvad, Jens C.; Samson, Robert A.

Source: IMA Fungus, Volume 1, Number 2, December 2010 , pp. 187-195(9)

Publisher: IMA - International Mycological Association

Abstract:

Aspergillus section Sparsi includes species which have large globose conidial heads with colours ranging from light grey to olive-buff. In this study, we examined isolates of species tentatively assigned to section Sparsi using a polyphasic approach. The characters examined include sequence analysis of partial -tubulin, calmodulin and ITS sequences of the isolates, morphological and physiological tests, and examination of the extrolite profiles. Our data indicate that the revised section Sparsi includes 10 species: A. anthodesmis, A. biplanus, A. conjunctus, A. diversus, A. funiculosus, A. implicatus, A. panamensis, A. quitensis, A. sparsus, and the new taxon A. haitiensis. The recently described A. quitensis and A. ecuadorensis are synonyms of A. amazonicus based on both molecular and physiological data. The white-spored species A. implicatus has also been found to belong to this section. Aspergillus haitiensis sp. nov. is characterised by whitish colonies becoming reddish brown due to the production of conidial heads, and dark coloured smooth stipes. The taxon produces gregatins, siderin and several unknown but characteristic metabolites.

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Keywords: ASPERGILLUS SECTION SPARSI; BETA-TUBULIN; CALMODULIN; EUROTIALES; EXTROLITES; ITS; POLYPHASIC TAXONOMY

Document Type: Research Article

Publication date: 2010-12-01

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• Scope: All aspects of pure and applied mycological research and news.
  Aims: To be the flagship journal of the International Mycological Association. IMA Fungus is an international, peer-reviewed, open-access, full colour, fast-track journal. Published papers are immediately distributed to several libraries (for effective publication under the International Code of Botanical Nomenclature). The journal strongly supports good practice policies, and requires herbarium voucher specimens to be deposited in a herbarium with an online database, cultures and DNA in long-term genetic resource collections, sequences in GenBank, alignments in TreeBASE, and taxonomic novelties in MycoBank.
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