Species Identification and Antifungal Susceptibility Patterns of Species Belonging to Aspergillus Section Nigri

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Abstract
A phylogenetic analysis was performed for 34 Aspergillus strains belonging to section Nigri . Molecular methods allowed for the correct classification into three different clades ( A. niger , A. tubingensis , and A. foetidus ). Correlation with in vitro itraconazole susceptibility distinguished the following three profiles: susceptible, resistant, and showing a paradoxical effect. A number of different species whose morphological features resemble those of A. niger showed unusual MICs to itraconazole that have never been described for the Aspergillus genus.