Aspergillus novoparasiticus: a new clinical species of the section Flavi

Aspergillus novoparasiticus: a new clinical species of the section Flavi

Author Goncalves, Sarah Santos Autor UNIFESP Google Scholar
Stchigel, Alberto M. Google Scholar
Cano, Josep F. Google Scholar
Godoy-Martinez, Patricio C. Google Scholar
Colombo, Arnaldo Lopes Autor UNIFESP Google Scholar
Guarro, Josep Google Scholar
Institution Univ Rovira & Virgili
Universidade Federal de São Paulo (UNIFESP)
Univ Austral Chile
Abstract During a survey on the incidence of Aspergillus in clinical environments, we found some interesting isolates that were morphologically similar to Aspergillus parasiticus, but differed in the color of the colonies and in the pattern of their conidial ornamentation. in the present study, those isolates were characterized using a polyphasic approach. A phylogenetic analysis was carried out, based on partial fragments of the acetamidase (amdS) and O-methyltransferase (omtS) genes and the internal transcribed spacer (ITS) region of rDNA. This information was combined with a detailed morphological and physiological study that included aflatoxin production and assimilation profiles of different carbon and nitrogen sources. the phenotypic and genotypic results support the proposal of a new species, Aspergillus novoparasiticus, phylogenetically placed in a distinct sister clade to that of A. parasiticus. the former has lobate-reticulate conidia and does not produce aspergillic acid on AFPA or organic acids on CREA, while A. parasiticus has echinulate conidia and produces aspergillic and organic acids. in addition, this new species, as well as A. parasiticus, produces aflatoxins B1, B2, G1 and G2.
Keywords Aspergillus parasiticus
A. novoparasiticus
amdS
omtS
molecular identification
fungal taxonomy
aflatoxin
Language English
Sponsor Spanish Ministerio de Educacion y Ciencia
FEDER
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Grant number Spanish Ministerio de Educacion y Ciencia: CGL 2009-08698/BOS
CAPES: SWE 4150-08-2
CNPq: GM/GD 142051/2007-1
Date 2012-02-01
Published in Medical Mycology. London: Informa Healthcare, v. 50, n. 2, p. 152-160, 2012.
ISSN 1369-3786 (Sherpa/Romeo, impact factor)
Publisher Informa Healthcare
Extent 152-160
Origin http://dx.doi.org/10.3109/13693786.2011.593564
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000299093600005
URI http://repositorio.unifesp.br/handle/11600/34557

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