Characterization of uranium (VI) sorption by two environmental fungi species and it´s potential for bioremediation, using gamma ray spectroscopy

GARGARELLO, ROMINA; CAVALITTO, SEBASTIÁN FERNANDO; DI GREGORIO, D; FERNANDEZ NIELLO, J; HUCK, H; PARDO, ALEJANDRO; SOMACAL, H; CURUTCHET, GUSTAVO

ENVIRONMENTAL TECHNOLOGY

Año: 2008 vol. 29 p. 1341 - 1348

0959-3330

Uranium(VI) sorption by two highly uranium-resistant air-borne fungi in a low-pH medium was measured by means of gamma spectrometry. Growth kinetics and stoichiometry of the two fungal species were also studied. Results show acceptable growth rates in synthetic medium with glucose and ammonia as carbon and nitrogen sources, respectively. Typical oxidative metabolism of carbohydrates was found. In vivo uptake of the radionuclide was negligible, but biosorption dry biomass presented a remarkable performance. The fungal strains showed potential for use in bioremediation