Mycotoxin production byAlternaria strains isolated from tomatoes affected by Blackmold in Argentina

摘要

A survey on 28 samples of Blackmold” affected tomatoes cultivated in Argentina was made.A. alternata was the most frequently occurring species.A. tenuissima, A. longipes yUdocladium spp. were also isolated. All theAlternaria strains (25) were able to produce mycotoxins, including Alternariol, Alternariol Monomethyl Ether and Tenuazonic Acid, on autoclaved rice (at 25°C and 8°C) and in fresh surface disinfected tomatoes at 25°C.