Taxonomic revision of Eurotium and transfer of species to Aspergillus

Botany, Faculty of Science, Charles University in Prague, Benátská 2, 128 01, Praha 2, Benátská 2, Prague 2, 12801, Czech Republic.
Mycologia (Impact Factor: 2.13). 07/2013; 105(4):912-937. DOI: 10.3852/12-151
Source: PubMed

ABSTRACT Aspergillus section Aspergillus contains economically important, xerophilic fungi that are widely distributed in nature and the human environ-ment and are known for their ability to grow on substrates with low water activity. The taxa were revised based on sequence data from four loci, PCR fingerprinting, micro-and macromorphology, and physiology. The number of taxa was reduced to 17 species, all of which can be distinguished with sequence data from either the caM or RPB2 locus. The original description of A. proliferans was supple-mented by a description of its teleomorph. This species seems to be relatively common and often has been confused with A. glaucus. In addition, green sporulating isolates of A. niveoglaucus isolated from food and several other substrates are indistinguish-able in phenotype from A. glaucus. A dichotomous key based on ascospore size and ornamentation and the ability to grow at specific combinations of temperature and water activity is provided for identification of species. In response to recent changes in the botanical code, we transferred the Eurotium species to Aspergillus and selected one name for each species.

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Jul 11, 2014