Aspergillus flavus is one of the major producers of aflatoxin and can contaminate wide range of agricultural commodities either in field or in storage. 15 presumptive Aspergillus flavus has been isolated from 30 feed and grain samples. All the isolates were morphologically similar to Aspergillus flavus type strains. All the isolates were found to be aflatoxigenic. DNA sequencing of 5.8 s rDNA c...

aflatoxins are carcinogenic metabolites produced by several strains of aspergillus flavus group in food and feed. cluster genes in aflatoxin biosynthesis pathway contain structural, regular and unassigned genes , nor-1 , ver-1 , and omt-1 are structural genes that coding for key enzymes and aflr is a regulatory gene that plays a key role in the production of aflatoxin and is affecting on the st...

Chthoniobacter flavus Ellin428 is the first isolate from the class Spartobacteria of the bacterial phylum Verrucomicrobia. C. flavus Ellin428 can metabolize many of the saccharide components of plant biomass but is incapable of growth on amino acids or organic acids other than pyruvate.

background: the frequency of invasive opportunistic mycoses has increased significantly over the past decades especially in immunocompromised patients. invasive aspergillosis (ia) has become a major cause of morbidity and mortality among these patients. as bronchoalveolar lavage (bal) fluid samples are generally useful specimens in the diagnosis of invasive pulmonary aspergillosis (ipa), this s...

Aspergillus flavus is a soil-borne saprophyte and an opportunistic pathogen of both humans and plants. This fungus not only causes disease in important food and feed crops such as maize, peanut, cottonseed, and tree nuts but also produces the toxic and carcinogenic secondary metabolites (SMs) known as aflatoxins. Polyamines (PAs) are ubiquitous polycations that influence normal growth, developm...

abstract in order to evaluate the effect of testa on reduction of fungal growth and aflatoxin b1 producthon, ten cultivars of pistachio were collected from different parts of pistachio belt i-e rafsanjan, damghan and ghazvin of iran. a section of testa and one mm of endosperm were scraped. 20 gr. of wounded kernels and 20 gr. of unwounded kernels were surface sterilized and then placed in petri...