Aquifer microbes in the 300 Area of the Hanford Site in southeastern Washington State, USA are periodically exposed to U(VI) concentrations that can range up to 10 µM in small sediment fractures. Assays of 35 H-leucine incorporation indicated that both sediment-associated and planktonic microbes were metabolically active, and that organic C was growth-limiting in the sediments. Although bacteria suspended in native groundwater retained high activity when exposed to 100 µM U(VI), they were inhibited by U(VI)
Revised: August 7, 2014 |
Published: November 6, 2013
Citation
Konopka A., A.E. Plymale, D.A. Carvajal, X. Lin, and J.P. McKinley. 2013.Environmental Controls on the Activity of Aquifer Microbial Communities in the 300 Area of the Hanford Site.Microbial Ecology 66, no. 4:889-896.PNNL-SA-90038.doi:10.1007/s00248-013-0283-3