Characterization by molecular markers (AFLP) of Aspergillus section Nigri isolated from grapes in Argentina

CHIOTTA MARIA LAURA; REYNOSO MARIA MARTA; TORRES ADRIANA; COMBINA MARIANA; CHULZE SOFIA

Mérida

Congreso; IV Latin American Congress of Micotoxicology and II International Symposium on Algal and Fungal Toxins for Industry; 2010

Background: Ochratoxin A (OTA) is a naturally occurring mycotoxin in vineyards and theirpresence cause important economic losses. Aspergillus section Nigri mainly A. carbonariusand 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 ingrapes 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.