Reduction of uranium(VI) to uranium(IV) by clostridia.
Several different species of clostridia reduced U(VI) to U(IV) to various degrees. The optimal pH for U(VI) reduction is 5 to 6 in most cases; a Clostridium sp. showed the highest rate at pH 4. Nitrate did not affect U(VI) reduction, indicating that this process in clostridia is nitrate independent.
Gao
Weimin
W
Brookhaven National Laboratory, Environmental Sciences Department, Building 490A, Upton, NY 11973, USA.
Francis
Arokiasamy J
AJ
D001673:Biodegradation, Environmental; D003013:Clostridium / Q000145:classification / Q000378:metabolism*; D004269:DNA, Bacterial / Q000302:isolation & purification; D005285:Fermentation; D006863:Hydrogen-Ion Concentration; D010084:Oxidation-Reduction; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000302:isolation & purification; D011850:Radioactive Waste; D017422:Sequence Analysis, DNA; D014502:Uranyl Nitrate / Q000378:metabolism*
D004269:DNA, Bacterial; D012336:RNA, Ribosomal, 16S; D011850:Radioactive Waste; D014502:Uranyl Nitrate