نتایج جستجو برای: aspergillus flavus

تعداد نتایج: 24300  

Journal: :Journal of clinical microbiology 2004
Ricardo Araujo Acacio Gonçalves Rodrigues

The objective of our study was to evaluate parameters influencing the germination of Aspergillus conidia. Inoculum concentration and age significantly influenced germination. Different incubation temperatures revealed significant differences among Aspergillus species. The internal human milieu provides the ideal conditions for the development of invasive disease by Aspergillus fumigatus but res...

Journal: :Molecular ecology resources 2009
L C Grubisha P J Cotty

Aspergillus flavus infects both plants and humans and contaminates diverse agricultural crops with aflatoxins, highly carcinogenic fungal metabolites. We describe 24 microsatellite markers developed to assess genetic diversity and recombination within and between three vegetative compatibility groups (VCGs) of Aspergillus flavus. These loci are polymorphic within at least one VCG or between VCG...

Journal: :iranian journal of allergy, asthma and immunology 0
maansi vermani department of respiratory allergy and applied immunology, vallabhbhai patel chest institute, university of delhi, delhi, india and amity institute of biotechnology, amity university uttar pradesh, noida, india. vannan kandi-vijayan department of respiratory medicine, vallabhbhai patel chest institute, university of delhi, delhi, india. mahendra kumar-agarwal department of respiratory allergy and applied immunology, vallabhbhai patel chest institute, university of delhi, delhi, india.

aspergillus species (a flavus and a niger) are important sources of inhalant allergens. current  diagnostic  modalities  employ  crude  aspergillus  extracts  which  only  indicate  the source to which the patient has been sensitized, without identifying the number and type of allergens in crude extracts. we report a study on the identification of major and minor allergens of the two common air...

Journal: :Polish journal of microbiology 2005
Anna Koziróg Sławomir Kuberski Zofia Zakowska Bogumił Brycki

Resistance causes of moulds to N,N-bis(3-aminopropyl)dodecylamine (APDA) for selected species of Aspergillus niger and Aspergillus flavus was examined. Control (sensitive) strains and resistant strains, cultured at 0.05% triamine, were used in the experiments. The non-resistant strains did not have growth capacity in this amount of ADPA while the resistant strains were characterised by a smalle...

2002
C. E. McAlpin

Aspergillus flavus Link:Fr. may infect seed of corn, cotton, peanut, and tree nuts and contaminate them with aflatoxins, which are potent hepatoxic, carcinogenic metabolites that pose a significant health hazard (3,4). Members of Aspergillus section Flavi are widespread in crop fields, particularly in subtropical to tropical latitudes (5,11,17,19). Population biologists seek to understand the g...

2011
G.P. Choudhary

In the present investigation, Emblica officinalis Gaerth. Syn Phyllanthus emblica linn. has been selected on account of its large scale use in manufacture of indigenous drugs. Among the various fungal, species, Aspergillus flavus was the most dominant and frequent species in most of food stuffs studied. The total population of Aspergillus. flavus was recorded in range of 20.30 × 10(3) - 89.50 ×...

Journal: :jundishapur journal of microbiology 0
larisa shcherbakova all-russian research institute of phytopathology, bolshie vyazemy, moscow region, russia natalia statsyuk all-russian research institute of phytopathology, bolshie vyazemy, moscow region, russia; all-russian research institute of phytopathology, institute str., bolshie vyazemy, 143050 russia. tel: +7-9262427241 oleg mikityuk all-russian research institute of phytopathology, bolshie vyazemy, moscow region, russia tatyana nazarova all-russian research institute of phytopathology, bolshie vyazemy, moscow region, russia vitaly dzhavakhiya all-russian research institute of phytopathology, bolshie vyazemy, moscow region, russia

conclusions phoma glomerata pg41 strain sharing natural substrate with toxigenic a. flavus secretes metabolites possessing a significant aflatoxin-degrading activity. the activity is associated mainly with a protein-enriched high-molecular-weight fraction of extracellular metabolites and appears to be of enzymatic origin. results the afb1-degrading activity of protein-enriched fractions, isolat...

Journal: :journal of food quality and hazards control 0
m esmaeilzadeh nooghi medical biotechnology research center, ashkezar branch, islamic azad university, ashkezar, yazd, iran a a jafari department of medical parasitology and mycology, medical school, shahid sadoughi university of medical sciences, yazd, iran s sedighi khavidak medical biotechnology research center, ashkezar branch, islamic azad university, ashkezar, yazd, iran h jafari school of pharmacy, shahid sadoughi university of medical sciences, yazd, iran

background: aflatoxins (afs) are the most prevalent carcinogenic mycotoxins, produced mainly by aspergillus flavus and a. parasiticus. the general purpose of the present study was to use dehydroacetic acid (dha) and ozonated water (ow) to control a. flavus growth and accumulation of aflatoxin b1 (afb1) in iranian pistachios. methods: three treatment pistachio groups were separately immersed in ...

2016
Cedric X. Reid Darrel L. Sparks W. Paul Williams Ashli E. Brown

Aflatoxins are highly carcinogenic compounds produced by the fungus Aspergillus flavus. Aspergillus flavus is a phytopathogenic fungus that commonly infects crops such as cotton, peanuts, and maize. The goal of this research was to design an effective method for sample preparation and analysis of aflatoxin B1 from Aspergillus flavus infected maize kernels. The method involves liquid extraction ...

Journal: :Journal of clinical microbiology 2008
M A Pfaller S A Messer L Boyken C Rice S Tendolkar R J Hollis D J Diekema

Few data exist to describe in vitro patterns of cross-resistance among large collections of clinical Aspergillus isolates, including those of species other than Aspergillus fumigatus. We examined 771 Aspergillus spp. clinical isolates collected from 2000 to 2006 as part of a global antifungal surveillance program (553 A. fumigatus, 76 A. flavus, 59 A. niger, 35 A. terreus, and 24 A. versicolor ...

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