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Iranian Journal of Pathology، جلد ۸، شماره ۱، صفحات ۳۶-۴۴
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Development of 16S rRNA targeted PCR methods for the detection of Escherichia coli in Rainbow trout (Oncorhynchus mykiss)
چکیده انگلیسی مقاله Objectives: The presence of E.coli in fish intended for human consumption may constitute a potential danger, not only in causing disease, but also because of the possible transfer of antibiotic resistance from aquatic bacteria to those infecting humans. The objective of this study was to develop an improved PCR method based on species – specific 16 S rRNA gene primers (FES, RES) for detection of E. coli from agar plates and fish tissues. Materials and Methods: In this study, For the rapid detection of E .coli from fish a set of primers (FES, RES), targeting 16S rRNA gene sequences of the specific microorganism was designed, and fifty two rainbow trout were obtained from Karaj fish farm. Then 1mL of bacterial concentration of 106CFU/ml was injected into intraperitoneal cavity. Samples were collected from liver and kidney after 48h injection. The PCR reaction conditions were optimized to permit detection of organism from agar plates and fish tissue in a day. Results: All tissue samples were positive for microbiological and PCR identification. DNA was successfully extracted by a boiled – extraction method or by phenol – chloroform – isoamyl alcohol. The BLAST analysis from sequencing of 4 amplicons randomly selected showed similar results, with the match being E .coli with a 100% similarity (not shown here). Conclusion: It is concluded that this method is fast, specific and sensitive to detect E.coli in infected and asymptomatic animals, fish product, and may have a positive impact on public and environmental health.
کلیدواژه‌های انگلیسی مقاله 16S Ribosomal RNA,E. coli,PCR,Rainbow trout
نویسندگان مقاله فاطمه فتاحی |
epartment of fishery and environment, faculty of natural resources, university of tehran, karaj, iran
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

علیرضا میرواقفی |
department of fishery and environment, faculty of natural resources, university of tehran, karaj, iran
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

حمید فرهمند |
department of fishery and environment, faculty of natural resources, university of tehran, karaj, iran
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

غلامرضا رفیعی |
department of fishery and environment, faculty of natural resources, university of tehran, karaj, iran
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

علیرضا عبداللهی |
department of pathology, tehran university of medical sciences, tehran, iran
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

نشانی اینترنتی http://ijp.iranpath.org/article_8330_9681148f0e18b4b9ccf4b1cb5fb75382.pdf
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زبان مقاله منتشر شده en
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