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Survival and genomic stability of Yersinia enterocolitica in environmental Acanthamoeba spp
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Survival and genomic stability of Yersinia enterocolitica in environmental Acanthamoeba spp
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Journal Article
Survival and genomic stability of Yersinia enterocolitica in environmental Acanthamoeba spp
2025
Overview
Free-living amoebae (FLA) are widespread protozoa that can host bacterial pathogens, promoting their persistence in the environment.
, a foodborne zoonotic pathogen, has been detected within amoebae, but its intracellular dynamics remain unclear.
In this study, we explored the interaction between three
strains-differing in biotype and virulence gene profile-and two
spp.-a reference strain and a wild environmental isolate.
All strains were internalized and survived up to 8 days in the collection strain and 16 days in the wild isolate. Intracellular persistence did not affect amoebal integrity or bacterial virulence profiles. Whole genome sequencing (WGS) revealed high genomic stability across strains, though specific mutations-such as in the
gene, involved in stress response-emerged after persistence in the collection strain. These findings suggest that
spp. not only shields
from environmental stress but may also influence its genome and adaptive potential. This work expands the current understanding of
biology and highlights the role of FLA as reservoirs and potential drivers of bacterial evolution. Their contribution to the bacteria persistence and gene exchange warrants further investigation, particularly in the context of antimicrobial resistance and food safety.
Publisher
Frontiers Media SA,Frontiers Media S.A
Subject
/ Bacteria
/ Food contamination & poisoning
/ Genes
/ Genomics
/ Protozoa
/ Toxins
/ Virulence Factors - genetics
/ Yeast
/ Yersinia enterocolitica - genetics
/ Yersinia enterocolitica - growth & development
/ Yersinia enterocolitica - pathogenicity
/ Yersinia enterocolitica - physiology
/ Zoonoses
/ zoonosis
