The genome of Pseudomonas fluorescens strain R124 demonstrates phenotypic adaptation to the mineral environment.

ABSTRACT: Microbial adaptation to environmental conditions is a complex process, including acquisition of positive traits through horizontal gene transfer or the modification of existing genes through duplication and/or mutation. In this study, we examined the adaptation of a Pseudomonas fluorescens isolate (R124) from the nutrient-limited mineral environment of a silica cave in comparison with P. fluorescens isolates from surface soil and the rhizosphere. Examination of metal homeostasis gene pathways demonstrated a high degree of conservation, suggesting that such systems remain functionally similar across chemical environments. The examination of genomic islands unique to our strain revealed the presence of genes involved in carbohydrate metabolism, aromatic carbon metabolism, and carbon turnover

SUBMITTER: Barton MD 

PROVIDER: S-EPMC3807495 | biostudies-literature | 2013 Nov

REPOSITORIES: biostudies-literature