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Iranian Journal of Parasitology، جلد ۹، شماره ۲، صفحات ۲۵۴-۲۴۹
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عنوان انگلیسی Isolation and identification of naegleria species from environmental water in changchun, northeastern china.
چکیده انگلیسی مقاله Background: Naegleria is a free-living amoeba, and pathogenic Naegleria may pose a health risk to people exposed to recreational water. Our objective in this study was to determine if there are pathogenic amoebae in environmental water samples from Changchun, Northeastern China. Methods: During July to September 2012, a total of 70 water samples were collected from Changchun, Northeastern China, and Naegleria was enriched by in vitro culture and detected by PCR using Naegleria genus-specific primers. Re-sulting PCR products were sequenced and phylogenetically analyzed to identify Naegleria species. Results: Naegleria was detected in 65 (92.9%) of 70 water samples. DNA se-quence and phylogenetic analyses based on the internal transcribed spacer (ITS) rDNA sequences revealed four Naegleria species, including N. pagei (n = 24) and N. Australiensis (n = 18), N. clarki (n = 13) and N. gruberi (n = 10), in which N. australiensis is pathogenic to mice. But the pathogenic species N. fowleri was not detected. Conclusion: This is the first report on Naegleria species in Northeastern China, showing that almost all environmental water samples were contaminated with Naegleria , including N. pagei , N. Australiensis , N. clarki and N. gruberi , which should be considered a potential public health threat.
کلیدواژه‌های انگلیسی مقاله Changchun,China,Identification,Naegleria,PCR
نویسندگان مقاله wei ونگ | wei wang
military veterinary institute, academy of military medical sciences, changchun, china.


feng wei | feng wei
college of life science, jilin agricultural university, changchun, china.


jiping li | jiping li
military veterinary institute, academy of military medical sciences, changchun, china.


nan li | nan li
military veterinary institute, academy of military medical sciences, changchun, china.


quan liu | quan liu
military veterinary institute, academy of military medical sciences, changchun, china.
نشانی اینترنتی http://ijpa.tums.ac.ir/index.php/ijpa/article/view/405
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