INVESTIGADORES
TORRES Adriana Mabel
congresos y reuniones científicas
Título:
Characterization by molecular markers (AFLP) of Aspergillus section Nigri isolated from grapes in Argentina
Autor/es:
CHIOTTA, M.L.; REYNOSO M.M.; TORRES, A.M.; COMBINA, M.; CHULZE, S.N.
Lugar:
Mérida
Reunión:
Congreso; VI Latin American Congress of Mycotoxicology and II International Symposium on algal and fungal toxins for Industry; 2010
Institución organizadora:
Sociedad Latinoamericana de Micotoxicologia
Resumen:
Ochratoxin A (OTA) is a naturally occurring mycotoxin in vineyards and their presence cause important economic losses. Aspergillus section Nigri mainly A. carbonarius and A. niger aggregate produce this toxin in grapes and wines (Battilani et al. 2006; Belli et al. 2005, Cabañes et al. 2002). The correct identification of ochratoxigenic fungi occurring in grapes is important to determine the potential toxicological risk in the grape growing areas. Molecular markers like AFLP provide useful tool to help in the identification of black aspergilli. There was a concordance between morphological identification and separation up to species level using molecular markers (AFLP). The genome diversity of the black aspergilli in the vineyards of Argentina evidence the occurrence of two well defined species A. carbonarius and A. tubingensis, and the other species included in A. niger aggregate and uniseriate aspergilli.Aspergillus section Nigri mainly A. carbonarius and A. niger aggregate produce this toxin in grapes and wines (Battilani et al. 2006; Belli et al. 2005, Cabañes et al. 2002). The correct identification of ochratoxigenic fungi occurring in grapes is important to determine the potential toxicological risk in the grape growing areas. Molecular markers like AFLP provide useful tool to help in the identification of black aspergilli. There was a concordance between morphological identification and separation up to species level using molecular markers (AFLP). The genome diversity of the black aspergilli in the vineyards of Argentina evidence the occurrence of two well defined species A. carbonarius and A. tubingensis, and the other species included in A. niger aggregate and uniseriate aspergilli.
