1999/05/01 by Chad T Pearion, Peter E Jablonski, Peter E. Jablonski · 1 citation
Environmental Science · Materials Science · Nursing · #Advanced Nanomaterials in Catalysis #Arsenic contamination and mitigation #Selenium in Biological Systems
paper · doi:10.1111/j.1574-6968.1999.tb13544.x
openalex publication_date 1999/05/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Natronococcus occultus, a haloalkaliphilic archaeon, was examined for its resistance to potassium tellurite. Cells grown in the presence of 1 mM potassium tellurite reduced it to metallic tellurium resulting in the deposition of intracellular crystals in the cytoplasm. The minimal inhibitory concentration for potassium tellurite was 10 mM. N. occultus had an inducible tellurite reductase activity. Cell-free extracts catalyzed the enzymatic reduction of potassium tellurite in a reaction which was dependent on NADH oxidation and a reduced environment.