Time course of virus-like particles (VLPS) double-stranded RNA accumulation in toxigenic and non-toxigenic strains of Aspergillus flavus
Braz. j. microbiol
;
32(1): 56-60, Jan.-Mar. 2001. ilus, tab, graf
Artículo
en Inglés
| LILACS
| ID: lil-297668
ABSTRACT
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.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Aspergillus flavus
/
Virus ARN
/
Técnicas In Vitro
/
ARN
Idioma:
Inglés
Revista:
Braz. j. microbiol
Asunto de la revista:
Microbiologia
Año:
2001
Tipo del documento:
Artículo
País de afiliación:
Brasil
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