img
Investigation of antibiotic resistance profile and TEM type lactamase gene carriage of ampicillin resistant Escherichia coli strains isolated from drinking water     
Yazarlar
Şengül Alpay Karaoğlu
Recep Tayyip Erdoğan Üniversitesi, Türkiye
Osman Birol Özgümüş
Recep Tayyip Erdoğan Üniversitesi, Türkiye
Prof. Dr. Elif SEVİM Prof. Dr. Elif SEVİM
Ahi Evran Üniversitesi, Türkiye
Fetiye Kolaylı
Kocaeli Üniversitesi, Türkiye
Prof. Dr. Ali SEVİM Prof. Dr. Ali SEVİM
Ahi Evran Üniversitesi, Türkiye
Yeşilgil Atasoy Pınar
Özet
Fifty-five ampicillin-resistant (Ampr) Escherichia coli strains were isolated from 51 drinking water points in Rize region containing abundant fresh water sources in Turkey during the years 2000 to 2002 and from January to February 2004. The large number of organisms (nearly 57%) exhibited resistance to three or more antibiotics commonly used in human and veterinary medicine. These strains displayed a multiresistant phenotype. Nearly half of the strains (27%) expressed resistance to ceftazidime, but these strains were not an extended-spectrum β-lactamase-producer according to the results of double-disk synergy test. All isolates were then screened for the carriage of TEM-type β-lactamase gene (blaTEM) by polymerase chain reaction. TEM-type β-lactamase genes were found in six (11%) isolates. Sequence analysis showed TEM-1 type genes. However, isoelectric focusing analysis did not confirm the production of TEM-1 type β-lactamase except for one strain. Conjugation experiments showed that resistance to ampicillin, tetracycline or trimethoprim/sulfamethoxazole was transferable in six (11%) isolates. Emergence of transferable antibiotic resistance and blaTEM-1 gene in E. coli strains from public drinking waters possesses a significant public health risk.
Anahtar Kelimeler
Ampicillin-resistant Escherichia coli | Drinking water
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı ANNALS OF MICROBIOLOGY
Dergi ISSN 1590-4261
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 01-2007
Cilt No 57
Sayı 2
Sayfalar 281 / 288
Doi Numarası 10.1007/BF03175221