Linking Specific Heterotrophic Bacterial Populations to Bioreduction of Uranium and Nitrate in Contaminated Subsurface Sediments by Using Stable Isotope Probing-Reference-Cited by-同舟云学术

Linking Specific Heterotrophic Bacterial Populations to Bioreduction of Uranium and Nitrate in Contaminated Subsurface Sediments by Using Stable Isotope Probing

Published:2011-11-15 Issue:22 Volume:77 Page:8197-8200
ISSN:0099-2240
Container-title:Applied and Environmental Microbiology
language:en
Short-container-title:Appl Environ Microbiol

Author:

Akob Denise M.¹,Kerkhof Lee²,Küsel Kirsten³,Watson David B.⁴,Palumbo Anthony V.⁴,Kostka Joel E.¹

Affiliation:

1. Florida State University, Tallahassee, Florida 32306

2. Institute of Marine and Coastal Sciences, Rutgers University, New Brunswick, New Jersey 08901

3. Institute of Ecology, Friedrich Schiller University Jena, 07743 Jena, Germany

4. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831

Abstract

ABSTRACT Shifts in terminal electron-accepting processes during biostimulation of uranium-contaminated sediments were linked to the composition of stimulated microbial populations using DNA-based stable isotope probing. Nitrate reduction preceded U(VI) and Fe(III) reduction in [ 13 C]ethanol-amended microcosms. The predominant, active denitrifying microbial groups were identified as members of the Betaproteobacteria , whereas Actinobacteria dominated under metal-reducing conditions.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Link

https://journals.asm.org/doi/pdf/10.1128/AEM.05247-11

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