Cellular Response of Adapted and Non-Adapted Tetrahymena thermophila Strains to Europium Eu(III) Compounds.

ABSTRACT: Europium is one of the most reactive lanthanides and humans use it in many different applications, but we still know little about its potential toxicity and cellular response to its exposure. Two strains of the eukaryotic microorganism model Tetrahymena thermophila were adapted to high concentrations of two Eu(III) compounds (EuCl₃ or Eu₂O₃) and compared to a control strain and cultures treated with both compounds. In this ciliate, EuCl₃ is more toxic than Eu₂O₃. LC₅₀ values show that this microorganism is more resistant to these Eu(III) compounds than other microorganisms. Oxidative stress originated mainly by Eu₂O₃ is minimized by overexpression of genes encoding important antioxidan

SUBMITTER: Alonso P 

PROVIDER: S-EPMC11117543 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature