Differential Isotopic Fractionation during Cr(VI) Reduction by an Aquifer-Derived Bacterium under Aerobic versus Denitrifying Conditions

作者：Han Ruyang; Qin Liping; Brown Shaun T; Christensen John N; Beller Harry R^*

来源：Applied and Environmental Microbiology, 2012, 78(7): 2462-2464.

DOI：10.1128/AEM.07225-11

We studied Cr isotopic fractionation during Cr(VI) reduction by Pseudomonas stutzeri strain RCH2. Despite the fact that strain RCH2 reduces Cr(VI) cometabolically under both aerobic and denitrifying conditions and at similar specific rates, fractionation was markedly different under these two conditions (epsilon was similar to 2% aerobically and similar to 0. 4% under denitrifying conditions).

• 出版日期2012-4