Back to Search
Start Over
Characterization and horizontal transfer of class 1 integrons in Salmonella strains isolated from food products of animal origin
- Source :
-
International Journal of Food Microbiology . Oct2011, Vol. 149 Issue 3, p274-277. 4p. - Publication Year :
- 2011
-
Abstract
- Abstract: A total of 81 Salmonella isolates from retail meats and seafood in Hebei province, China, were assayed for the presence of and horizontal transfer of class 1 integrons. By the PCR screening for the integrons, class 1 integron was detected from strains in serotypes of Derby, Indiana, London and Choleraesuis, which were isolated from pork, chicken or seafood; however, two isolates contained the empty integron that lacked the resistance cassette, a potential hotspot for development of the multidrug resistance. In contrast, two other isolates had the antibiotic resistance gene cassettes within the class 1 integron, which were dfrA1-aadA1 and aadB-cmlA, respectively. The conjugation experiments demonstrated the plasmid-mediated transfer of the class 1 integrons. Furthermore, each of the integrons was transmitted to Streptococcus mutans via natural gene transformation. These findings suggest the possible transfer of class 1 integrons from foodborne pathogens to human residential bacteria via horizontal gene transfer. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 01681605
- Volume :
- 149
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- International Journal of Food Microbiology
- Publication Type :
- Academic Journal
- Accession number :
- 64882909
- Full Text :
- https://doi.org/10.1016/j.ijfoodmicro.2011.07.006