Data/hora: 16/06/2024 06:51:01

Provedor de dados: | 52
País: | Brazil
Título: | Genetic relationships among strains of the Aspergillus niger aggregate
Autores: | Ferracin,Lara Munique; Frisvad,Jens Christian; Taniwaki,Marta Hiromi; Iamanaka,Beatriz Thie; Sartori,Daniele; Schapovaloff,Maria Elena; Fungaro,Maria Helena Pelegrinelli.
Data: | 2009-11-01
Ano: | 2009
Palavras-chave: | Aspergillus niger aggregate; Ochratoxin A; Dried fruits; Toxigenic fungi.
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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700031
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89132009000700031
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.52 n.spe 2009
Fonte: | info:eu-repo/semantics/openAccess