Multidrug resistant, extended spectrum β-lactamase (ESBL)-producing Escherichia coli isolated from a dairy farm
Escherichia coli strains were isolated from a single dairy farm as a sentinel organism for the persistence of antibiotic resistance genes in the farm environment. Selective microbiological media were used to isolate 126 E. coli isolates from slurry and faeces samples from different farm areas. Antib...
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Oxford University Press
2016
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| Online Access: | https://eprints.nottingham.ac.uk/31623/ |
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| author | Ibrahim, Delveen Dodd, Christine E.R. Stekel, Dov J. Ramsden, S.J. Hobman, Jon L. |
| author_facet | Ibrahim, Delveen Dodd, Christine E.R. Stekel, Dov J. Ramsden, S.J. Hobman, Jon L. |
| author_sort | Ibrahim, Delveen |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Escherichia coli strains were isolated from a single dairy farm as a sentinel organism for the persistence of antibiotic resistance genes in the farm environment. Selective microbiological media were used to isolate 126 E. coli isolates from slurry and faeces samples from different farm areas. Antibiotic resistance profiling for 17 antibiotics (seven antibiotic classes), showed 57.9% of the isolates were resistant to between 3 and 15 antibiotics. The highest frequency of resistance was to ampicillin (56.3%), and the lowest to imipenem (1.6%), which appeared to be an unstable phenotype and was subsequently lost. Extended spectrum beta-lactamase resistance (ESBL) was detected in 53 isolates and blaCTX-M, blaTEM and blaOXA genes were detected by PCR in twelve, four and two strains, respectively. Phenotypically most isolates showing resistance to cephalosporins were AmpC rather than ESBL, a number of isolates having both activities. Phenotypic resistance patterns suggested co-acquisition of some resistance genes within subsets of the isolates. Genotyping using ERIC PCR demonstrated these were not clonal, and therefore co-resistance may be associated with mobile genetic elements. These data show a snapshot of diverse resistance genes present in the E. coli population reservoir, including resistance to historically used antibiotics as well as cephalosporins in contemporary use. |
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| format | Article |
| id | nottingham-31623 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:13:01Z |
| publishDate | 2016 |
| publisher | Oxford University Press |
| recordtype | eprints |
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| spelling | nottingham-316232020-05-04T17:38:51Z https://eprints.nottingham.ac.uk/31623/ Multidrug resistant, extended spectrum β-lactamase (ESBL)-producing Escherichia coli isolated from a dairy farm Ibrahim, Delveen Dodd, Christine E.R. Stekel, Dov J. Ramsden, S.J. Hobman, Jon L. Escherichia coli strains were isolated from a single dairy farm as a sentinel organism for the persistence of antibiotic resistance genes in the farm environment. Selective microbiological media were used to isolate 126 E. coli isolates from slurry and faeces samples from different farm areas. Antibiotic resistance profiling for 17 antibiotics (seven antibiotic classes), showed 57.9% of the isolates were resistant to between 3 and 15 antibiotics. The highest frequency of resistance was to ampicillin (56.3%), and the lowest to imipenem (1.6%), which appeared to be an unstable phenotype and was subsequently lost. Extended spectrum beta-lactamase resistance (ESBL) was detected in 53 isolates and blaCTX-M, blaTEM and blaOXA genes were detected by PCR in twelve, four and two strains, respectively. Phenotypically most isolates showing resistance to cephalosporins were AmpC rather than ESBL, a number of isolates having both activities. Phenotypic resistance patterns suggested co-acquisition of some resistance genes within subsets of the isolates. Genotyping using ERIC PCR demonstrated these were not clonal, and therefore co-resistance may be associated with mobile genetic elements. These data show a snapshot of diverse resistance genes present in the E. coli population reservoir, including resistance to historically used antibiotics as well as cephalosporins in contemporary use. Oxford University Press 2016-04-01 Article PeerReviewed Ibrahim, Delveen, Dodd, Christine E.R., Stekel, Dov J., Ramsden, S.J. and Hobman, Jon L. (2016) Multidrug resistant, extended spectrum β-lactamase (ESBL)-producing Escherichia coli isolated from a dairy farm. FEMS Microbiology Ecology, 92 (4). pp. 1-37. ISSN 1574-6941 Cattle Slurry Escherichia Coli Extended Spectrum Beta Lactamase Multidrug Resistance http://femsec.oxfordjournals.org/content/early/2016/02/04/femsec.fiw013.long doi:10.1093/femsec/fiw013 doi:10.1093/femsec/fiw013 |
| spellingShingle | Cattle Slurry Escherichia Coli Extended Spectrum Beta Lactamase Multidrug Resistance Ibrahim, Delveen Dodd, Christine E.R. Stekel, Dov J. Ramsden, S.J. Hobman, Jon L. Multidrug resistant, extended spectrum β-lactamase (ESBL)-producing Escherichia coli isolated from a dairy farm |
| title | Multidrug resistant, extended spectrum β-lactamase (ESBL)-producing Escherichia coli isolated from a dairy farm |
| title_full | Multidrug resistant, extended spectrum β-lactamase (ESBL)-producing Escherichia coli isolated from a dairy farm |
| title_fullStr | Multidrug resistant, extended spectrum β-lactamase (ESBL)-producing Escherichia coli isolated from a dairy farm |
| title_full_unstemmed | Multidrug resistant, extended spectrum β-lactamase (ESBL)-producing Escherichia coli isolated from a dairy farm |
| title_short | Multidrug resistant, extended spectrum β-lactamase (ESBL)-producing Escherichia coli isolated from a dairy farm |
| title_sort | multidrug resistant, extended spectrum β-lactamase (esbl)-producing escherichia coli isolated from a dairy farm |
| topic | Cattle Slurry Escherichia Coli Extended Spectrum Beta Lactamase Multidrug Resistance |
| url | https://eprints.nottingham.ac.uk/31623/ https://eprints.nottingham.ac.uk/31623/ https://eprints.nottingham.ac.uk/31623/ |