AEM
Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrowReprints and Permissions
Right arrow Copyright Information
Right arrow Books from ASM Press
Right arrow MicrobeWorld
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Edwards, E A
Right arrow Articles by Grbic-Galic, D
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Edwards, E A
Right arrow Articles by Grbic-Galic, D
Agricola
Right arrow Articles by Edwards, E A
Right arrow Articles by Grbic-Galic, D

 Previous Article  |  Next Article 

Appl Environ Microbiol. 1992 March; 58(3): 794-800

Anaerobic degradation of toluene and xylene by aquifer microorganisms under sulfate-reducing conditions.

E A Edwards, L E Wills, M Reinhard and D Grbic-Galic

Department of Civil Engineering, Stanford University, California 94305-4020.

ABSTRACT

Toluene and the three isomers of xylene were completely mineralized to CO2 and biomass by aquifer-derived microorganisms under strictly anaerobic conditions. The source of the inoculum was gasoline-contaminated sediment from Seal Beach, Calif. Evidence confirming that sulfate was the terminal electron acceptor is presented. Benzene and ethylbenzene were not degraded under the experimental conditions used. Successive transfers of the mixed cultures that were enriched from aquifer sediments retained the ability to degrade toluene and xylenes. Greater than 90% of 14C-labeled toluene or 14C-labeled o-xylene was mineralized to 14CO2. The doubling time for the culture grown on toluene or m-xylene was about 20 days, and the cell yield was about 0.1 to 0.14 g of cells (dry weight) per g of substrate. The accumulation of sulfide in the cultures as a result of sulfate reduction appeared to inhibit degradation of aromatic hydrocarbons.

Appl Environ Microbiol. 1992 March; 58(3): 794-800




This article has been cited by other articles:



Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
J. Bacteriol. Microbiol. Mol. Biol. Rev. Eukaryot. Cell All ASM Journals

Copyright © 1992 by the American Society for Microbiology. All rights reserved.