Glass bead system to study mycotoxin production of Aspergillus spp. on corn and rice starches.

Mycotoxin production by aflatoxin B1 (AFB1) -producing Aspergillus flavus Zt41 and sterigmatocystin (ST) -hyperproducer Aspergillus creber 2663 mold strains on corn and rice starch, both of high purity and nearly identical amylose-amylopectin composition, as the only source of carbon, was studied. Scanning electron microscopy revealed average starch particle sizes of 4.54 ± 0.

Survival and growth of microscopic fungi derived from tropical regions under future heat waves in the Pannonian Biogeographical Region.

Warming and heat waves are predicted by different climate models in the near future in the Pannonian Biogeographical Region (PBR). These climatic effects may have impact on the prevalence and distribution of certain fungal species of this area. In this study the effects of predicted climate scenarios were tested on fungi being endemic or unintentionally introduced by global trade from regions of warm temperate climate.

Mycological Investigation of Bottled Water Dispensers in Healthcare Facilities.

The usage of bottled water dispensers (BWDs) has spread worldwide. Despite their popularity, few studies have dealt with their microbial contaminants, and little attention is given to their fungal contamination. To our knowledge this is the first mycological study of BWDs in Europe.

Effect of Sterigmatocystin or Aflatoxin Contaminated Feed on Lipid Peroxidation and Glutathione Redox System and Expression of Glutathione Redox System Regulatory Genes in Broiler Chicken.

Authors studied the effect of sterigmatocystin from infected corn (STC), purified sterigmatocystin (PSTC), and aflatoxin B1 from infected corn (AFB) on lipid peroxidation and glutathione redox parameters, including the expression of their encoding genes in a sub-chronic (14 days) trial. A total of 144 three-week-old cockerels was divided into four experimental groups ( = 36 in each). Control feed was contaminated with STC or PSTC (1590 µg STC/kg or 1570.

Aflatoxigenic Aspergillus flavus and Aspergillus parasiticus strains in Hungarian maize fields.

Due to the climate change, aflatoxigenic Aspergillus species and strains have appeared in several European countries, contaminating different agricultural commodities with aflatoxin. Our aim was to screen the presence of aflatoxigenic fungi in maize fields throughout the seven geographic regions of Hungary. Fungi belonging to Aspergillus section Flavi were isolated in the ratio of 26.

Antibiotic resistance profiles and virulence markers of Pseudomonas aeruginosa strains isolated from composts.

The aim of our work was to determine the presence of Pseudomonas aeruginosa in compost raw materials, immature and mature compost, and compost-treated soil. Twenty-five strains of P. aeruginosa were isolated from a raw material (plant straw), immature and mature compost and compost-treated soil samples.

[Mould infection causing obstructive bronchitis. Diagnostik and therapeutic approaches (author's transl)].

The authors compared the results of mycologic examinations of asthmatic and control patient's throat. Fungi other than Candida were cultivated from the throat in 15% of asthmatic children and 3% of controls. In secrets from the lower respiratory tract gained by bronchoscopy, laryngoscopy, or through tracheostomy there were moulds in 34% among the asthmatics and in 15% of the other cases.