New insights in uranium bioremediation by cytochromes of the bacterium Geotalea uraniireducens.

ABSTRACT: The bacterium Geotalea uraniireducens, commonly found in uranium-contaminated environments, plays a key role in bioremediation strategies by converting the soluble hexavalent form of uranium (U(VI)) into less soluble forms (e.g., U(IV)). While most of the reduction and concomitant precipitation of uranium occur outside the cells, there have been reports of important reduction processes taking place in the periplasm. In any case, the triheme periplasmic cytochromes are key players, either by ensuring an effective interface between the cell's interior and exterior or by directly participating in the reduction of the metal. Therefore, understanding the functional mechanism of the highly abundant triheme cytochromes in G. uraniireducens' is crucial for elucidating the respiratory pathways in t

SUBMITTER: Almeida A 

PROVIDER: S-EPMC11787507 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature