The objective of this work was to study the effect of ecophysiological factors on fumonisin gene expression and growth in Fusarium verticillioides. The effects of ionic and nonionic solute water potentials, matric potential, and temperature on in vitro mycelial growth rates and on expression of the FUM1 gene, involved in fumonisin biosynthesis, were examined. FUM1 transcript levels were quantif...

A polymerase chain reaction (PCR) based diagnostic assay was used to develop markers for detection of Fusarium verticillioides (=F. moniliforme), a fumonisin producing fungus in maize tissues. Species-specific primers were designed based on sequence data from the polyketide synthase (PKS) gene (FUM1- previously FUM5) responsible for fumonisin production in fungi. Four sets of oligonucleotide pr...

Incidence of insect damage, and association of insect damage with mycotoxigenic corn ear molds and mycotoxins was examined in commercial fields of Bt and non-Bt hybrids of different backgrounds in Illinois in 1998 and 1999. Nearly 50% Helicoverpa zea (Boddie) infestation sometimes occurred in Bt hybrids that express high levels of the protein in silks and kernels. Damage by European corn borer,...

fumonisins (a family of foodborne carcinogenic mycotoxins) cause health hazards to humans and animals in developing countries, and has also economic implications. therefore, the efficacy of a novel environmental friendly nixtamalization procedure to make tortillas (the main staple food for the mexican population) was investigated.maize contaminated with 2136.67 ng/g total fumonisins was process...

The absolute stereochemical description of fumonisin B1 (FB1) and presumably of its congeners is now secure. In this article I summarize studies leading to this conclusion and outline the biosynthetic and synthetic studies of FB1.

This volume of the IARC Monographs considers some traditional herbal medicines, including extracts from certain plants of the genera Aristolochia, Rubia, Morinda and Senecio; some mycotoxins, specifically aflatoxins and fumonisin B1; and two industrial chemicals, naphthalene and styrene. Of these, the Monographs have previously evaluated several of the pyrrolizidine alkaloids that occur in cert...

objectives: the purpose of this study was to evaluate the effect of cuminum cyminum (c. cyminum) essential oil on the growth and fum1 gene expression of fumonisin-producing fusarium verticillioides (f. verticillioides) strains isolated from maize. materials and methods: all fungal strains were cultured on potato dextrose agar (pda) slopes at 30°c for 7 days. the antifungal activity was evaluate...

background : numerous epidemiologic studies have shown that esophagus cancer is more common in areas with grains containing mycotoxin such as fumonisin b1 (fb1). the aim of this research is to study the effect of long- and short-term of esophagus tissue to fb1 orally administered in animal model. materials and methods : forty-four female mice have been divided in two short- and long-term groups...

BACKGROUND Fumonisin B1 (FB1), fumonisin B2 (FB2), and overall mycotoxins feed contamination may cause several effects on crops production and animal health. The contamination occurred predominantly in corn and corn-based foods and feeds. AIMS This survey intends to provide the occurrence of fumonisins in swine and equine mixed feeds in Portugal, making an overview from 2007 to 2010. METHOD...

Fusarium moniliforme (F. moniliforme) is one of the most frequent fungal pathogens found in rice. Samples of rice grown in three different zones of Mazandaran Province, Iran were collected and analyzed for the presence of fumonisin B (FB ). Mycological analysis revealed the presence of F. moniliforme-type isolates 1 1 in 65.1% of the rice samples. Average levels of FB per zones 1, 2 and 3 were ...