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Molecular identification of species from the Penicillium roqueforti group associated with spoiled animal feed
Department of Microbiology, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden.
Feed Laboratory, National Veterinary Institute, Uppsala, Sweden.
Department of Microbiology, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden.
2000 (English)In: Applied and Environmental Microbiology, ISSN 0099-2240, E-ISSN 1098-5336, Vol. 66, no 4, 1523-1526 p.Article in journal (Refereed) Published
Abstract [en]

The Penicillium roqueforti group has recently been split into three species, P, roqueforti, Penicillium carneum, and Penicillium paneum, on the basis of differences in ribosomal DNA sequences and secondary metabolite profiles. We reevaluated the taxonomic identity of 52 livestock feed isolates from Sweden, previously identified by morphology as P. roqueforti, by comparing the sequences of the ribosomal internal transcribed spacer region. Identities were confirmed with random amplified polymorphic DNA analysis and secondary metabolite profiles. Of these isolates, 48 were P. roqueforti, 2 were P. paneum, and 2 were Penicillium expansum. No P. carneum isolates were found, The three species produce different mycotoxins, but no obvious relationship between mold and animal disease was detected, based on medical records, P. roqueforti appears to dominate in silage, but the ecological and toxicological importance of P. carneum and P. paneum as feed spoilage fungi is not clear. This is the first report of P. expansum in silage.

Place, publisher, year, edition, pages
American Society for Microbiology , 2000. Vol. 66, no 4, 1523-1526 p.
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URN: urn:nbn:se:oru:diva-52312DOI: 10.1128/AEM.66.4.1523-1526.2000ISI: 000086284700041PubMedID: 10742236ScopusID: 2-s2.0-0034126846OAI: oai:DiVA.org:oru-52312DiVA: diva2:971705
Available from: 2016-09-19 Created: 2016-09-16 Last updated: 2016-09-19Bibliographically approved

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Schnürer, Johan
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