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Antimicrobial Agents and Chemotherapy, October 2009, p. 4514-4517, Vol. 53, No. 10
0066-4804/09/$08.00+0     doi:10.1128/AAC.00585-09
Copyright © 2009, American Society for Microbiology. All Rights Reserved.

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

Laura Alcazar-Fuoli,* Emilia Mellado, Ana Alastruey-Izquierdo, Manuel Cuenca-Estrella, and Juan L. Rodriguez-Tudela

Servicio de Micologia, Centro Nacional de Microbiologia, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain

Received 30 April 2009/ Returned for modification 12 June 2009/ Accepted 18 July 2009

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.

* Corresponding author. Mailing address: Servicio de Micologia, Centro Nacional de Microbiologia, Instituto de Salud Carlos III, Carretera Majadahonda-Pozuelo Km2 28220, Madrid, Spain. Phone: 44 20 7594 5293. Fax: 44 20 7594 3076. E-mail: l.alcazar-fuoli{at}imperial.ac.uk

{triangledown} Published ahead of print on 27 July 2009.

Antimicrobial Agents and Chemotherapy, October 2009, p. 4514-4517, Vol. 53, No. 10
0066-4804/09/$08.00+0     doi:10.1128/AAC.00585-09
Copyright © 2009, American Society for Microbiology. All Rights Reserved.





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