To evaluate the effect of fungal inoculants, a pot experiment was carried out on 30 days old transplanted seedlings of Gmelina arborea under nursery condition. Transplants were inoculated with seven day old liquid culture of Aspergillus ellipticus, Fusarium incarnatum, Aspergillus aculeatus, Aspergillus candidus, Penicillium species, Alternaria alternata, Penicillium species, Fusarium javanicum...

Presently appearance of resistance to antifungal agents among Aspergillus species is dramatically increasing. The objective of this study was to look at the in vitro activities of antifungal drugs against Iranian clinical (from nail, bronchoalveolar lavage, paranasal sinus) isolated A. flavus strains. The susceptibility of 45 aflatoxigenic and non-aflatoxigenic Aspergillus flavus strains were e...

Aspergillus niger, a mold commonly associated with Aspergillus flavus in damaged corn, interferes with the production of aflatoxin when grown with A. flavus on autoclaved corn. The pH of corn-meal disks was adjusted using NaOH-HCl, citric acid-sodium citrate, or a water extract of A. niger fermented corn. Aflatoxin formation was completely inhibited below pH 2.8-3.0, irrespective of the system ...

Compositions of Aspergillus flavus populations determine the extent to which crops become contaminated with aflatoxins. In the current study, influences of diverse crop hosts on competition among A. flavus isolates were quantified with pyrosequencing. Maize, cotton, soyabean and sorghum supported different levels of sporulation, but intraspecific differences in sporulation were not detected on ...

Aflatoxins and melanins are the products of a polyketide biosynthesis. In this study, the search of potential inhibitors of the aflatoxin B1 (AFB1) biosynthesis was performed among compounds blocking the pigmentation in fungi. Four compounds-three natural (thymol, 3-hydroxybenzaldehyde, compactin) and one synthetic (fluconazole)-were examined for their ability to block the pigmentation and AFB1...

Aspergillus flavus, like approximately one-third of ascomycete fungi, is thought to be cosmopolitan and clonal because it has uniform asexual morphology. A. flavus produces aflatoxin on nuts, grains, and cotton, and assumptions about its life history are being used to develop strategies for its biological control. We tested the assumptions of clonality and conspecificity in a sample of 31 Austr...

Out of 12 fungal strains, two fungal strains, namely Aspergillus flavus AT-2 and Aspergillus niger AT-3, were found to produce maximum cellulase production. The CMCase activities of A. flavus AT-2 and A. niger AT-3 under state solid fermentation (SSF) conditions were of 42.69 and 40.08%, respectively, which was higher than those obtained under submerged fermentation (SmF) conditions. A fungal i...

Aspergillus flavus is the main producer of carcinogenic aflatoxins in agricultural commodities such as maize. This fungus occurs naturally on crops, and produces aflatoxins when environmental conditions are favorable. The aim of this study is to analyse the genetic variability among 109 A. flavus isolates previously recovered from maize sampled from a known aflatoxin-hotspot (Eastern region, Ke...

abstract: fifteen non-aflatoxigenic strains of aspergillus flavus, represent a wide range of geographic regions of iran (six provinces include fars, ardebil, guilan, golestan, kerman and semnan) and vegetative compatibility groups (vcgs), were collected from corn (zea mays l.), peanut (arachis hypogaea l.) and pistachio (pistachia vera l.) soils and kernels, were screened for the presence of af...

in this investigation the effect of trichoderma isolates in inhibition of aspergillus flavus growth and reducing of aflatoxin b1 (afb1) was studied in culture media and pistachio nuts. among trichoderma isolates, t1, t3, t4 and t17 isolates showed significant impact on inhibiting of a. flavus r5growth. t3 and t4 isolates were the most effective isolates, which caused 84.40% and 77.88% reduction...