title: Cultural characteristics and zearalenone production by strains ofFusarium from wheat.
abstract: Conidia of the speciesFusarium culmorum /W.G.Sm./ Sacc. andFusarium graminearum Schwabe are characterized by variability in zearalenone production and dimensions depending on the substrate. The sporulation of isolates from some wheat eultivars have been deprived in vivo and in vitro in the first passage, but not their pathogenicity and toxic metabolites production. Nonsporulating strains produced lower quantités of zearalenone than sporulating ones. Liquid filtrates of such nonsporulating strains had a high phytotoxic effect on wheat caryopses. The crystalline toxin DAS /0,25 ug/ml/ had low phytotoxic effect on wheat caryopses.
authors.affiliation: Institute of Experimental Phytopatholohy and Entomology, Slovak Academy of Science, Ivanka pri Dunaji, Czechoslovakia.
authors.forename: A
authors.initials: A
authors.lastname: Srobárová
authors.forename: M
authors.initials: M
authors.lastname: Bukovčáková