| Registro completo |
| Provedor de dados: |
BABT
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| País: |
Brazil
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| Título: |
Genetic relationships among strains of the Aspergillus niger aggregate
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| Autores: |
Ferracin,Lara Munique
Frisvad,Jens Christian
Taniwaki,Marta Hiromi
Iamanaka,Beatriz Thie
Sartori,Daniele
Schapovaloff,Maria Elena
Fungaro,Maria Helena Pelegrinelli
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| Data: |
2009-11-01
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| Ano: |
2009
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| Palavras-chave: |
Aspergillus niger aggregate
Ochratoxin A
Dried fruits
Toxigenic fungi
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| Resumo: |
We analyzed the genetic relationships between 51 fungal isolates previously identified as A. niger aggregate, obtained from dried fruit samples from worldwide origin and 7 A. tubingensis obtained from Brazilian coffee beans samples. Greater fungal diversity was found in black sultanas. Aspergillus niger sensu stricto was the most prevalent species. It was found in all fruit substrates of all geographical origins. Based on Random Amplification of Polymorphic DNA (RAPD) and β-tubulin sequences data two groups of A. niger were found. In spite of the small number of isolates from Group IV an association between extrolite patterns and molecular clustering is speculated. A. tubingensis were the second most frequent species and this species were clearly subdivided into two groups. The finding of two groups for A. tubingensis strains could not yet explain the contradictions found in the literature about the capability this species for ochratoxin production, because both of them were formed by only non-ochratoxin-producing strains.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700031
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| Editor: |
Instituto de Tecnologia do Paraná - Tecpar
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| Relação: |
10.1590/S1516-89132009000700031
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| Formato: |
text/html
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| Fonte: |
Brazilian Archives of Biology and Technology v.52 n.spe 2009
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| Direitos: |
info:eu-repo/semantics/openAccess
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