Aspergillus flavus Link:Fr. is a soilinhabiting fungus that saprophytically utilizes a wide range of organic substrates. From an agro-ecological perspective, it is an important degrader of crop debris contributing to nutrient recycling (11). A. flavus first attracted the attention of cotton researchers in the early 1950s, when it was associated with a fluorescent fiber condition of raw cotton (...

Transformants of Aspergillus flavus containing the Aequorea victoria gfp gene fused to a viral promoter or the promoter region and 483 bp of the coding region of A. flavus aflR expressed green fluorescence detectable without a microscope or filters. Expression of green fluorescent protein fluorescence was correlated with resistance to aflatoxin accumulation in five corn genotypes inoculated wit...

aflatoxins are secondary toxic metabolites produced by some aspergillus spp. particularly, aspergillus flavus and a. parasiticus that contaminate food and feed. the objective of this study was to evaluate the contamination of feedstuffs with aspergillus spp. and detect genes involved in the aflatoxin biosynthesis pathway of a. flavus and a. parasiticus isolates. a total of 110 cow feed samples ...

The essential oil from Curcuma longa L. was analysed by GC/MS. The major components of the oil were ar-turmerone (33.2%), α -turmerone (23.5%) and β -turmerone (22.7%). The antifungal activities of the oil were studied with regard to Aspergillus flavus growth inhibition and altered morphology, as preliminary studies indicated that the essential oil from C. longa inhibited Aspergillus flavus Lin...

Out of fifty-two Iranian nonaflatoxigenic strains of Aspergillus flavus,collected from various substrates (soil and kernel) and sources (peanut, corn and pistachio), fifteen representatives were selected according to their different geographical origins (six provinces: Guilan and Golestan, Ardebil, Fars, Kerman and Semnan) and vegetative compatibility groups (VCGs, IR1 to IR15) for microsatelli...

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 ...

Aspergillus flavus is one of the most important plant as well as human pathogen. A. flavus, has gained worldwide attention for its industrial use and toxigenic potential. Besides their pathogenicity, A. flavus produces a wide range of secondary metabolites, used in food and pharmaceuticals industry. To determine the bioactivity of A. flavus, it was isolated from soil of Khyber Pukhtunkhwa, Paki...

Aspergillus flavus is the main causal agent of aflatoxin contamination in several agricultural products, including cottonseed and corn (2,11,15,22). Aflatoxins are toxic fungal metabolites that are limited in food and feed by government regulations throughout most of the world (26,32). A. flavus can be divided into S and L strains based on morphologic, genetic, and physiologic criteria (3,10,16...

Bacterial isolates from Mississippi maize field soil and maize rhizosphere samples were evaluated for their potential as biological control agents against Aspergillus flavus and Fusarium verticillioides. Isolated strains were screened for antagonistic activities in liquid coculture against A. flavus and on agar media against A. flavus and F. verticillioides. We identified 221 strains that inhib...

ABSTRACT Aspergillus flavus, the causal agent of aflatoxin contamination of cottonseed, is a natural inhabitant of soils. A. flavus can be divided into the S and L strains, of which the S-strain isolates, on average, produce greater quantities of aflatoxins than the L-strain isolates. Aflatoxin contamination can be severe in several crops in South Texas. The structure of A. flavus communities r...