Artículos de revistas
Characterization of atypical Listeria innocua isolated from swine slaughterhouses and meat markets
Fecha
2012Registro en:
Research in Microbiology, v. 163, n. 4, pp. 268-271, may, 2012
0923-2508
10.1016/j.resmic.2012.02.004
Autor
Moreno, Luisa Zanolli
Paixao, Renata
Gobbi, Debora Dirani
Raimundo, Daniele Cristine
Ferreira, Thais Porfida
Hofer, Ernesto
Matte, Maria Helena
Moreno, Andrea Micke
Institución
Resumen
Atypical Listeria innocua strains presenting phenotypic characteristics similar to those of Listeria monocyto genes 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. (C) 2012 Institut Pasteur. Published by Elsevier Masson SAS. All rights reserved.