A facultative iron-reducing (Fe(III)-reducing) Paenibacillus sp. strain was isolated from Hanford 300A subsurface sediment biofilms that was capable of reducing soluble Fe(III) complexes (Fe(III)-NTA and Fe(III)-citrate) but unable to reduce poorly crystalline ferrihydrite (Fh). However, Paenibacillus sp. 300A was capable of reducing Fh in the presence of low concentrations (2 µM) of either of electron transfer mediators (ETMs) flavin mononucleotide (FMN) or anthraquinone-2,6-disulfonate (AQDS). Maximum initial Fh reduction rates were observed at catalytic concentrations (
Revised: December 27, 2012 |
Published: November 7, 2012
Citation
Ahmed B., B. Cao, J.S. McLean, T. Ica, A. Dohnalkova, O. Istanbullu, and A. Paksoy, et al. 2012.Fe(III) Reduction and U(VI) Immobilization by Paenibacillus sp. Strain 300A, Isolated from Hanford 300A Subsurface Sediments.Applied and Environmental Microbiology 78, no. 22:8001-8009.PNNL-SA-90509.doi:10.1128/AEM.01844-12