Study of the frequency of iutA, sitA and irp2 genes in Escherichia coli iso-lated from poultry colibacillosis in Tabriz city in 2021

Document Type : Original Article

Authors

1 MSc, Department of Microbiology, Maragheh Branch, Islamic Azad University, Maragheh, Iran

2 Assistant Professor, Department of Microbiology, Maragheh Branch, Islamic Azad University, Maragheh, Iran

Abstract

Escherichia coli is one of the most important pathogenic microbes in poultry. Avian pathogenic Escherichia coli isolates are capable of pathogenicity outside the intestinal environment. Colibacillosis is one of the most common diseases in the poultry industry, which causes a lot of economic losses every year. The aim of this research was to study of the frequency of iutA, sitA and irp2 genes in Escherichia coli isolated from poultry colibacillosis in Tabriz city in 2021. 100 samples of Escherichia coli isolated from poultry colibacillosis were phenotypically identified by biochemical and staining methods. Then, the frequency of sitA, iutA and irp2 genes in these isolates was investigated by molecular method. The results showed that the frequency of iutA, irp2 and sitA genes in the tested Escherichia coli samples were 88%, 84% and 66%, respectively. Also, 52% of the tested isolates contained all three mentioned genes. No negative samples were observed in terms of the presence of studied genes. In this research, the high frequency of iron absorption genes in Escherichia coli samples tested may indicate the high potential virulence of these isolates. Therefore, it is necessary to conduct more studies and evaluate the importance of such possibilities in the epidemiology of the disease in poultry.

Keywords

Main Subjects


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