The evolution of virulence in Pseudomonas aeruginosa during chronic wound infection.

ABSTRACT: Opportunistic pathogens are associated with a number of chronic human infections, yet the evolution of virulence in these organisms during chronic infection remains poorly understood. Here, we tested the evolution of virulence in the human opportunistic pathogen Pseudomonas aeruginosa in a murine chronic wound model using a two-part serial passage and sepsis experiment, and found that virulence evolved in different directions in each line of evolution. We also assessed P. aeruginosa adaptation to a chronic wound after 42 days of evolution and found that morphological diversity in our evolved populations was limited compared with that previously described in cystic fibrosis (CF) infections. Using whole-genome sequencing, we found that genes previously implicated in P. aerug

SUBMITTER: Vanderwoude J 

PROVIDER: S-EPMC7661302 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature