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dc.contributor.author
Greco, Mariana Vanesa
dc.contributor.author
Kemppainen, Minna Johanna
dc.contributor.author
Pose, Graciela Noemi
dc.contributor.author
Pardo, Alejandro Guillermo
dc.date.available
2018-08-10T21:54:16Z
dc.date.issued
2015-09
dc.identifier.citation
Greco, Mariana Vanesa; Kemppainen, Minna Johanna; Pose, Graciela Noemi; Pardo, Alejandro Guillermo; Taxonomic characterization and secondary metabolite profiling of aspergillus section Aspergillus contaminating feeds and feedstuffs; MDPI; Toxins; 7; 9; 9-2015; 3512-3537
dc.identifier.issn
2072-6651
dc.identifier.uri
http://hdl.handle.net/11336/55050
dc.description.abstract
Xerophilic fungal species of the genus Aspergillus are economically highly relevant due to their ability to grow on low water activity substrates causing spoilage of stored goods and animal feeds. These fungi can synthesize a variety of secondary metabolites, many of which show animal toxicity, creating a health risk for food production animals and to humans as final consumers, respectively. Animal feeds used for rabbit, chinchilla and rainbow trout production in Argentina were analysed for the presence of xerophilic Aspergillus section Aspergillus species. High isolation frequencies (>60%) were detected in all the studied rabbit and chinchilla feeds, while the rainbow trout feeds showed lower fungal charge (25%). These section Aspergillus contaminations comprised predominantly five taxa. Twenty isolates were subjected to taxonomic characterization using both ascospore SEM micromorphology and two independent DNA loci sequencing. The secondary metabolite profiles of the isolates were determined qualitatively by HPLC-MS. All the isolates produced neoechinulin A, 17 isolates were positive for cladosporin and echinulin, and 18 were positive for neoechinulin B. Physcion and preechinulin were detected in a minor proportion of the isolates. This is the first report describing the detailed species composition and the secondary metabolite profiles of Aspergillus section Aspergillus contaminating animal feeds.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
MDPI
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Animal Feed Spoilage
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Mycotoxins
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Scanning Electron Microscopy
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Teleomorphs
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Xerophilic Species
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Otras Ciencias Biológicas
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Taxonomic characterization and secondary metabolite profiling of aspergillus section Aspergillus contaminating feeds and feedstuffs
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-08-08T14:14:54Z
dc.journal.volume
7
dc.journal.number
9
dc.journal.pagination
3512-3537
dc.journal.pais
Suiza
dc.journal.ciudad
Basilea
dc.description.fil
Fil: Greco, Mariana Vanesa. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Micología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Kemppainen, Minna Johanna. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Micología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Pose, Graciela Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Rio Negro. Sede Alto Valle. Escuela de Producción, Tecnología y Medio Ambiente; Argentina
dc.description.fil
Fil: Pardo, Alejandro Guillermo. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Micología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Toxins
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3390/toxins7093512
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.mdpi.com/2072-6651/7/9/3512
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