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Silva,Valéria N.; Durigon,Edison Luiz; Pires,Maria de Fátima Costa; Lourenço,Alexandre; Faria,Maria Jacinta de; Corrêa,Benedito. |
Two strains of Aspergillus flavus, non-toxigenic NRRL 6550 and toxigenic NRRL 5940, were studied over a period of 44 days, in order to detect the presence of virus-like particles (VLPs) by means of electron microscopy (EM) and nucleic acids electrophoresis. Only the toxigenic strain contained VLPs, presenting three-segmented dsRNA. An increase in VLPs number was observed during the exponential phase of fungal growth, up to day 12 of culture; after this, higher levels of aflatoxin production in toxigenic NRRL 5940 mycelia occurred in parallel with decreased VLPs replication. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycovirus; Double-stranded RNA; Virus-like particles; Aspergillus flavus. |
Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000100013 |
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