SciELO - Scientific Electronic Library Online

vol.44 issue2Detection of the ompA gene of Chlamydophila pecorum in captive birds in ArgentinaDevelopment and preliminary assessment of a recombinant canarypox virus as an antirabic vaccine candidate author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




  • Have no cited articlesCited by SciELO

Related links


Revista argentina de microbiología

Print version ISSN 0325-7541


DI CONZA, José A; MOLLERACH, Marta E; GUTKIND, Gabriel O  and  AYALA, Juan A. Dos aislamientos de Salmonella Infantis multirresistentes se comportan como hipoinvasivos pero con elevada proliferación intracelular. Rev. argent. microbiol. [online]. 2012, vol.44, n.2, pp.69-74. ISSN 0325-7541.

Two multidrug-resistant Salmonella Infantis isolates behave like hypo-invasive strains but have high intracellular proliferation. In this work, plasmid-encoded virulence factors in two Salmonella Infantis isolates carrying multiresistance plasmids were investigated. In addition, their invasion and proliferative ability in non-phagocytic cells was studied. None of them showed the typical determinants of virulence plasmids (spv operon). The invasion assays of S. Infantis isolates on eukaryotic cells showed a decreased ability to Invade but they remained and proliferated In the cytoplasm regardless of having used a permissive (HeLa) or non-permissive (NRK) cell line. Finally, there was no microscopic evidence suggesting a bactericidal effect of these eukaryotic cell lines on the Isolates tested.

Keywords : Salmonella Infantis; Multiresistance; Invasion ability; Intracellular proliferation.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License