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Updated: Jul 3, 2026

Discovery of New Intracellular Pathogens by Amoebal Coculture and Amoebal Enrichment Approaches
Published on: October 27, 2013
Diversity of bacterial endosymbionts of environmental acanthamoeba isolates
Stephan Schmitz-Esser1, Elena R Toenshoff, Susanne Haider
1Department of Microbial Ecology, University of Vienna, Althanstr. 14, 1090 Vienna, Austria.
Abstract:
Free-living amoebae are frequent hosts for bacterial endosymbionts. In this study, the symbionts of eight novel environmental Acanthamoeba strains isolated from different locations worldwide were characterized. Phylogenetic analysis revealed that they were related to one of four evolutionary lineages of amoeba symbionts recognized previously. This study provides evidence for the existence of only a small number of phylogenetically well-separated groups of obligate intracellular endosymbionts of acanthamoebae with global distribution.
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