Effect of anilinopyrimidine resistance on aflatoxin production and fitness parameters in Aspergillus parasiticus Speare

ABSTRACT: Mutants of Aspergillus parasiticus resistant to the anilinopyrimidine fungicides were isolated at a high mutation frequency after UV-mutagenesis and selection on media containing cyprodinil. In vitro fungitoxicity tests resulted in the identification of two predominant resistant phenotypes that were highly (R1-phenotype) and moderately (R2-phenotype) resistant to the anilinopyrimidines cyprodinil; pyrimethanil and mepanipyrim. Cross-resistance studies […]

Influence of light on food relevant fungi with emphasis on ochratoxin producing species

The influence of light of varying wavelength on growth and ochratoxin A biosynthesis of Aspergillus carbonarius; A. niger; A. steynii and on Penicillium nordicum and P. verrucosum was analysed. For comparison the influence of light on various other food relevant fungi; including citrinin producers; was also tested. Generally the Aspergilli seem to be more resistant […]

Detoxification of Aflatoxin B1 and Patulin by Enterococcus faecium strains

Aim of the present study was to investigate the detoxification of aflatoxin B1 and patulin from aqueous solution by probiotic culture of Enterococcus faecium M74 and commercial culture of E. faecium EF031. The effect of the bacterial viability; incubation time and pH of the medium on the binding ability was tested. Also; binding stability was […]

Analysis of genes early expressed during Aspergillus flavus colonisation of hazelnut

Aflatoxins contamination by Aspergillus flavus is a matter of great concern for oil rich crops among which hazelnuts represent economically important agricultural commodities of Mediterranean countries; mainly used as mixed nuts or as ingredients in the bakery and confectionery industries. Since the biosynthetic pathway of aflatoxin biosynthesis has been elucidated in detail; expression analysis of […]