to study the population structure of gibberella fujikuroi species complex, the causal agent of rice foot rot, samples were taken from different rice growing regions of guilan province in 2004. among fourty-one isolates recovered from different cultivars; three isolates did not produce microconidial chain. in order to study the sexual fertility and determine the mating type as well as mating pop...

Abstract Staphylococcal enterotoxins (SE) are essential in human and animal infection food poisoning. This study analyzed ten genes ( sek, sel, sem, sen, seo, sep, seq, ser, ses , set ) encoding new staphylococcal enterotoxin isolated from animals humans by multiplex polymerase chain reaction (PCR). In Yogyakarta, Indonesia, samples cases (174 isolates), cattle (5 goats isolates) resulted a tot...

Assessment of eighty Fusarium proliferatum isolates obtained from maize, rice, sugarcane and onion using AFLP molecular marker separated the isolates into four distinct clusters according to their host’s. Isolates recovered from rice clustered in a distinct group. Isolates from sugarcane grouped in two distinct groups and isolates recovered from maize and onion clustered in a unit group. As wel...

the staphylococci are important pathogenic bacteria causing various infections in animals and human. hemolysin is one of the virulence factors of coagulase-positive (cps) and coagulase-negative staphylococci (cns). the aims of the study were to characterize hemolysins of staphylococcus spp. isolated from human and bovine origin, phenotypic- and genotypically. characterization of hemolysin pheno...

conclusions this study showed that multiple β-lactamases can be produced in burn isolates. this suggests that use of cephalosporins and carbapenems should be restricted in burn isolates to minimize the development and spread of these multidrug resistant pathogens. results there was 99% resistance to carbenicillin, and ticarcillin, 98% to cotrimoxazole, 96% to ciprofloxacin, and aztreonam, 95% t...

Ornithobacterium rhinotracheale (ORT) is a respiratory pathogen which has been isolated throughout the world from numerous bird species. The present study was designed to isolate and characterize the ORT from domestic turkeys, quails and pigeons. For this purpose, 250 samples from each bird species (turkey, quail and pigeon) with or without respiratory signs were tested by taking of tracheal...

In this study, Staphylococcus aureus was found to be the causative agent of furunculosis in 64 (27.5%) out 233 Iraqi patients presented with furunculosis. 16SrRNA gene located all isolates. Nevertheless, mecA and lukS-lukF genes were 60% 4% S. isolates, respectively. Interestingly, carrying isolates positive as well.

Background & Aims: The production of extended-spectrum-β-lactamases (ESBLs) is the main mechanism of resistance to β-lactam antibiotics. The outbreak of isolates simultaneously possessing several resistance mechanisms to β-lactam antibiotics caused a decrease in sensitivity of the confirmatory tests for ESBL. The aim of this study was the evaluation of the β-lactamase disk test method in the de...

Colibacillosis caused by E.coli is one of the most common illnesses in commercial chickens and induce high financial losses in the poultry industry due to morbidity, mortality and antibiotic expenses because of overuses. E.coli can mostly cause disease as a secondary or opportunistic pathogen, while certain strains with specific virulence factors even as primary pathogen can cause colibacillosi...

Background & Aims: The production of extended-spectrum-β-lactamases (ESBLs) is the main mechanism of resistance to β-lactam antibiotics. The outbreak of isolates simultaneously possessing several resistance mechanisms to β-lactam antibiotics caused a decrease in sensitivity of the confirmatory tests for ESBL. The aim of this study was the evaluation of the β-lactamase disk test...