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Archivos de medicina veterinaria

versão impressa ISSN 0301-732X

Resumo

MELLA, C et al. Interaction between zoonotic bacteria and free living amoebas: A new angle of an epidemiological polyhedron of public health importance?. Arch. med. vet. [online]. 2016, vol.48, n.1, pp.1-10. ISSN 0301-732X.  http://dx.doi.org/10.4067/S0301-732X2016000100001.

Since many years ago, several studies reported the endosymbiosis between bacteria species and free living amoebas. However, the mechanisms involved in the bacteria penetration and release from the amoeba are not clear. The free living amoebas especially Acanthamoeba castellanii are considered important bacteria predators, for that reason they have a significant role in the control of microbial populations in particular environments. However, some bacteria are capable to avoid the digestion from the amoeba and take advantage of this intimate relationship. A. castellanii is an ubiquitous organism present in aquatic and soil environments. Particularly in humid environments they are found sharing with different bacteria species, including those pathogen for humans transmitted by animals. The interaction between the bacteria and the amoebas may result in a close endosymbiotic relationship that allows the bacteria to survive inside the vacuoles of the protozoa for days or months. The purpose of this review is to describe the relevant aspects of the interaction between A. castellanii and different bacteria species, mostly those with relevance in public health and related with zoonosis.

Palavras-chave : amoebas; Acanthamoeba; endosymbiosis; zoonotic bacteria.

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