Article
Characterization of atypical Listeria innocua isolated from swine slaughterhouses and meat markets
Registro en:
MORENO, Luisa Zanolli; et al. Characterization of atypical Listeria innocua isolated from swine slaughterhouses and meat markets. Research in Microbiology, v.163, ´.268-271, 2012.
0923-2508
10.1016/j.resmic.2012.02.004
1769-7123
Autor
Moreno, Luisa Zanolli
Paixão, Renata
Gobbi, Debora Dirani
Raimundo, Daniele Cristine
Ferreira, Thais Porfida
Hofer, Ernesto
Matte, Maria Helena
Moreno, Andrea Micke
Resumen
Atypical Listeria innocua strains presenting phenotypic characteristics similar to those of Listeria monocytogenes were recently isolated from
food and the environment. These isolates also tested positive for virulence genes specific to L. monocytogenes. Here we report the isolation of
atypical hemolytic L. innocua strains from the environment of pork processing plants in Brazil. The strains were positive for L. monocytogenes
virulence genes hly, inlA and inlB by PCR and presented genotypic similarities with human isolates of L. monocytogenes via the AFLP technique
using HindIII single enzyme protocol. Phenotypic and genotypic similarities suggest that these atypical L. innocua may be pathogenic strains. 2030-01-01