نتایج جستجو برای: virulence genes bvfa
تعداد نتایج: 458396 فیلتر نتایج به سال:
The current study was aimed to investigate the prevalence of ureC, rsbA, zapA and mrpA virulence genes using polymerase chain reaction (PCR) in Proteus spp. isolated from 5 commercially popular species of pet turtles and comparison of the mrpA gene sequences of Proteus mirabilis isolates with human clinical isolates. A total of 24 isolates in pet turtles were identified, comprised of P. mirabil...
Background and Aims: Pseudomonas aeruginosa is the most important cause of various nosocomial infections and mastitis in dairy cattle and the development of antibiotic resistance. The aim of this study was to determine the antibiotic resistance of Pseudomonas aeruginosa and the presence of virulence genes in human and animal samples. Materials and Methods: In this study, 102 human and animal st...
the main features of enteroaggregative escherichia coli (eaec) pathogenesis include attachment of bacteria to the intestinal mucosa, production of various toxins and cytotoxins, and stimulation of mucosal inflammation. ‘virulence’ genes encode these features. comparison of different eaec isolates has shown that the virulence gene content of these isolates varies considerably. the heterogeneity ...
Identifying the virulence factors of stripe rust (Puccinia striiformis f. sp. tritici) disease, awareness of numbers and identification of resistance genes in wheat breeding materials, accelerate the process of producing the resistance cultivars which are sustained against different races. To study the genetic and pathogenic and non-pathogenic spectrum of genes, five hot races of stripe rust wh...
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...
conclusions the results showed that e. coli isolated from patients with uti had eight virulence factors with high frequencies. moreover, these results alleged a direct connection between virulence factors and antimicrobial resistance in e. coli. results the frequency of virulence factors papc, afa, sfa/foc, fimh, hly, neuc, ibea, and iucc were 53.3%, 51.7%, 53.3%, 56.7%, 23.3%, 31.7%, 20%, and ...
Background and Aims: The aim of this study was to determine the virulence and antibiotic resistance properties of Streptococcus agalactiae (S. agalactiae) and Streptococcus uberis (S. uberis) isolated from the ruminant’s sub-clinical mastitic milk in Iran. Materials and Methods: Positive samples in the CMT test were cultured and S. agalactiae and S. uberis have been identified using bi...
Background and Objective: Salmonellosis is an important infectious zoonotic disease that makes it even more significant to identify and control the causative strains. Molecular methods, especially polymerase chain reaction (PCR), for virulence genes can help to quickly and accurately identify Salmonella strains. Accordingly, the purpose of this study was molecular identification based on sivH, ...
fusarium oxysporum f. sp. lycopersici (fol) is the causal agent of vascular wilt in tomato, an important plant disease in iran. four monogenic resistance genes in tomato are used for identification of races of fol and their corresponding avirulence genes avr1, avr2 and avr3 were identified in pathogen one of which, avr2, is f.sp. specific. hence they can serve as reliable markers for racial ide...
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