title: Uranium accumulation by Pseudomonas sp. EPS-5028.
abstract: Pseudomonas sp. EPS-5028 was examined for the ability to accumulate uranium from solutions. The uptake of uranium by this microorganism is very rapid and is affected by pH but not by temperature, metabolic inhibitors, culture time and the presence of various cations and anions. The amount of uranium absorbed by the cells increased as the uranium concentration of the solution increased up to 55 mg uranium/g cell dry weight. Electron microscopy indicated that uranium accumulated intracellularly as needle-like fibrils. Uranium could be removed chemically from the cells, which could then be reused as a biosorbent.
authors.affiliation: Laboratorio de Microbiología, Facultad de Farmacia, Núcleo Universitario de Pedralbes Universidad de Barcelona, 08028, Barcelona, Spain.
authors.forename: Ana M
authors.initials: AM
authors.lastname: Marqués
authors.forename: Xavier
authors.initials: X
authors.lastname: Roca
authors.forename: M Dolores
authors.initials: MD
authors.lastname: Simon-Pujol
authors.forename: M Carmen
authors.initials: MC
authors.lastname: Fuste
authors.forename: Francisco
authors.initials: F
authors.lastname: Congregado