Soil Humic Acid Decreases Biological Uranium ( VI ) Reduction by Shewanella putrefaciens CN 32

@inproceedings{Burgos2007SoilHA,
  title={Soil Humic Acid Decreases Biological Uranium ( VI ) Reduction by Shewanella putrefaciens CN 32},
  author={William D Burgos and John M. Senko and B A Brian A Dempsey and Eric E Roden and James. J. Stone and Ken M. Kemner and Shelly D. Kelly},
  year={2007}
}
Biological reduction of uranium(VI) by Shewanella putrefaciens CN32 was investigated in the presence of soil humic acid (SHA). Experiments were performed under resting cell conditions with uranyl acetate as the electron acceptor and sodium lactate as the electron donor in a NaHCO3 or PIPES/NaHCO3 buffer. SHA significantly decreased the final extent of U(VI) bioreduction (100% uranium bioreduced without humics vs. 50% uranium bioreduced with humics). Dissolved (0.2m filter) U(VI) was measured by… CONTINUE READING