ACСUMULATION AND EFFLUX OF COPPER AND CADMIUM IONS BY PSEUDOMONAS AERUGINOSA STRAINS

Abstract

The ability of Pseudomonas aeruginosa A17, A03 and C25a strains to accumulate and export copper and cadmium ions has been studied. P. aeruginosa strains have been found to bind up to 65% cadmium ions to the cell surface while A03 and C25a cells bound more than 90% copper ions on the cell surface. The inhibitors chloramphenicol and N-Ndicyclohexylcarbodiimide (DCCD) inhibited metal accumulation and efflux by P. aeruginosa strains. АТP-driven efflux systems are involved in copper and cadmium resistance mechanisms of the studied P. aeruginosa strains.

Keywords

• pseudomonas aeruginosa
• акумуляція
• ефлюкс
• важкі метали