Growth of Geobacter sulfurreducens with acetate in syntrophic cooperation with hydrogen-oxidizing anaerobic partners

Article Abstract:

Syntrophic cooperation between Geobacter sulfurreducens and Wolinella succinogenes or Desulfovibrio desulfuricans enable G. sulfurreducens to degrade acetate even with iron limitation and with nitrate as the electron acceptor. The measurement of hydrogen evolution and diffusive hydrogen transfer indicate that the interspecies hydrogen transport may proceed through interspecies transfer or a carrier system with greater redox potential.

Physiological aspects, Growth, Bacterial growth, Microbiology, Cultures (Biology), Sulfur bacteria, Anaerobic bacteria

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Anaerobic degradation of benzene, toluene, ethylbenzene, and o-xylene in sediment-free iron-reducing enrichment cultures

Article Abstract:

The anaerobic degradation of benzene, toluene, ethylbenzene, and xylene (BTEX) compounds with amorphous ferric oxide as electron acceptor was examined. The electron balances showed a complete anaerobic oxidation of the aromatic compounds to CO2.

Analysis, Ferric oxide, Aromatic compounds, Electrons

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Stable hydrogen and carbon isotope fractionation during microbial toluene degradation: mechanistic and environmental aspects

Article Abstract:

Deuterium/hydrogen isotope signatures can be used to monitor toluene biodegradation in contaminated aquifers. D/H isotope fractionation is three orders of magnitude greater than (super 13)C/(super 12)C carbon isotope fractionation.

Research, Biodegradation, Toluene, Hydrogen, Hydrogen isotopes

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