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Title: Influence of Carbon Sources and Electron Shuttles on Ferric Iron Reduction by Cellulomonas sp. Strain ES6

Abstract

Microbially reduced iron minerals can reductively transform a variety of contaminants including heavy metals, radionuclides, chlorinated aliphatics, and nitroaromatics. A number of Cellulomonas spp. strains, including strain ES6, isolated from aquifer samples obtained at the U.S. Department of Energy's Hanford site in Washington, have been shown to be capable of reducing Cr(VI), TNT, natural organic matter, and soluble ferric iron [Fe(III)]. This research investigated the ability of Cellulomonas sp. strain ES6 to reduce solid phase and dissolved Fe(III) utilizing different carbon sources and various electron shuttling compounds. Results suggest that Fe(III) reduction by and growth of strain ES6 was dependent upon the type of electron donor, the form of iron present, and the presence of synthetic or natural organic matter, such as anthraquinone-2,6-disulfonate (AQDS) or humic substances. This research suggests that Cellulomonas sp. strain ES6 could play a significant role in metal reduction in the Hanford subsurface and that the choice of carbon source and organic matter addition can allow for independent control of growth and iron reduction activity.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Idaho National Laboratory (INL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1028224
Report Number(s):
INL/JOU-10-19978
Journal ID: ISSN 0923-9820; BIODEG; TRN: US201122%%750
DOE Contract Number:  
DE-AC07-05ID14517
Resource Type:
Journal Article
Journal Name:
Biodegradation
Additional Journal Information:
Journal Volume: 22; Journal Issue: 5; Journal ID: ISSN 0923-9820
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 59 BASIC BIOLOGICAL SCIENCES; AQUIFERS; BACTERIA; BINDING ENERGY; BIOREMEDIATION; CARBON SOURCES; CHROMIUM 51; CONTROL; ELECTRON TRANSFER; GROWTH; HANFORD RESERVATION; HEAVY METALS; IRON COMPOUNDS; MINERALS; ORGANIC MATTER; RABBIT TUBES; RADIOISOTOPES; REDUCTION; SOLIDS; TNT; VALENCE; WASHINGTON; Fermenters; anthraquinone-2,6-disulfonate (AQDS)

Citation Formats

Gerlach, Robin, Field, Erin K, Viamajala, Sridhar, Peyton, Brent M, Apel, William A, and Cunningham, Al B. Influence of Carbon Sources and Electron Shuttles on Ferric Iron Reduction by Cellulomonas sp. Strain ES6. United States: N. p., 2011. Web. doi:10.1007/s10532-011-9457-1.
Gerlach, Robin, Field, Erin K, Viamajala, Sridhar, Peyton, Brent M, Apel, William A, & Cunningham, Al B. Influence of Carbon Sources and Electron Shuttles on Ferric Iron Reduction by Cellulomonas sp. Strain ES6. United States. doi:10.1007/s10532-011-9457-1.
Gerlach, Robin, Field, Erin K, Viamajala, Sridhar, Peyton, Brent M, Apel, William A, and Cunningham, Al B. Thu . "Influence of Carbon Sources and Electron Shuttles on Ferric Iron Reduction by Cellulomonas sp. Strain ES6". United States. doi:10.1007/s10532-011-9457-1.
@article{osti_1028224,
title = {Influence of Carbon Sources and Electron Shuttles on Ferric Iron Reduction by Cellulomonas sp. Strain ES6},
author = {Gerlach, Robin and Field, Erin K and Viamajala, Sridhar and Peyton, Brent M and Apel, William A and Cunningham, Al B},
abstractNote = {Microbially reduced iron minerals can reductively transform a variety of contaminants including heavy metals, radionuclides, chlorinated aliphatics, and nitroaromatics. A number of Cellulomonas spp. strains, including strain ES6, isolated from aquifer samples obtained at the U.S. Department of Energy's Hanford site in Washington, have been shown to be capable of reducing Cr(VI), TNT, natural organic matter, and soluble ferric iron [Fe(III)]. This research investigated the ability of Cellulomonas sp. strain ES6 to reduce solid phase and dissolved Fe(III) utilizing different carbon sources and various electron shuttling compounds. Results suggest that Fe(III) reduction by and growth of strain ES6 was dependent upon the type of electron donor, the form of iron present, and the presence of synthetic or natural organic matter, such as anthraquinone-2,6-disulfonate (AQDS) or humic substances. This research suggests that Cellulomonas sp. strain ES6 could play a significant role in metal reduction in the Hanford subsurface and that the choice of carbon source and organic matter addition can allow for independent control of growth and iron reduction activity.},
doi = {10.1007/s10532-011-9457-1},
journal = {Biodegradation},
issn = {0923-9820},
number = 5,
volume = 22,
place = {United States},
year = {2011},
month = {9}
}