the effects of two iranian medicinal plants including zataria multiflora and geranium pelargoniumwere evaluated on growth-inhibiting of some toxigenic fungi such as aspergillus flavus, a. parasiticus, a.ochraceus and fusarium verticillioides. in this study, standard z. multiflora and g. pelargonium essentialoils (eos) were diluted in 0.01% dimethyl sulfoxide. different dilutions of z. multiflor...

The presence of glutathione (GSH) S-transferase activity, using 1-chloro-2, 4-dinitrobenzene (CDNB) as a substrate, has been established in the cytosolic fraction of the toxigenic (aflatoxin producing) and nontoxigenic strains of Aspergillus flavus. Significant differences in the GSH S-transferase activity were observed between the toxigenic and non-toxigenic strains. A positive correlation has...

objective: citrinin is a mycotoxin produced by several species of the genera aspergillus and penicillium and occurs mainly in food products and animal feed. some scientific reports show a link between citrinin and nephrotoxic and possibly a carcinogenic effect for humans. methods: samples collected by settling plates,in northern iran and pure culture isolation performed till the toxin measureme...

620 Corynebacterium diphtheriae strains from 472 sick and healthy persons were studied for their adhesive activity (AA) in direct agglutination of trypsin-treated sheep erythrocytes. Toxigenic strains had more active AA than non-toxigenic ones which was not dependent on the presence of toxin in the culture. Neither biotype nor serotype of the strains correlated with their AA. Several lysotypes ...

Red rot disease caused by Colletotrichum falcatum is a major production threat to several sugarcane varieties in Thailand. Biological control an ecologically friendly alternative manage the using microbial antagonism and associated metabolic products. In this study, four Aspergillus non-toxigenic strains (A37, A374, A400, A561) were characterized genetic approach evaluated for their antagonisti...

The antifungal activity of isolated lactic acid bacteria (LAB) from a locally fermented cereal, "Kunu", was tested against toxigenic Aspergillus flavus. The liquid refreshment, "Kunu", was prepared under hygienic condition using millet, sorghum, and the combination of the two grains. The antifungal potential of isolated LAB against toxigenic A. flavus was carried out using both in vitro and in ...

Several atoxigenic Aspergillus flavus isolates, including some being used as biocontrol agents, and one toxigenic isolate were surveyed for the ability to produce extracellular xylanolytic and pectinolytic hydrolases. All of the tested isolates displayed good production of endoxylanases when grown on a medium utilizing larch xylan as a sole carbon substrate. Four of the tested isolates produced...

Purpose The conjunctiva is a wet mucosal surface surrounding the cornea that is continuously exposed to pathogens. Nevertheless, persistent inflammation is not observed. We examined if the NOD-like receptor pyrin domain 3 (NLRP3) inflammasome functions as a sensor that distinguishes commensal and non-pathogenic bacteria from pathogenic bacteria in human conjunctival goblet cells. Methods Gobl...