1.
Braz. j. microbiol
;
32(1): 56-60, Jan.-Mar. 2001. ilus, tab, graf
Article
Dans Anglais
| LILACS
| ID: lil-297668
Résumé
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.
Sujets)
Aspergillus flavus , Techniques in vitro , ARN , Virus à ARN , Électrophorèse , Microscopie électronique , Culture virale
2.
J. pneumol
;
26(4): 218-218, jul.-ago. 2000.
Article
Dans Portugais
| LILACS
| ID: lil-366380