Energetics and kinetics of anaerobic aromatic and fatty acid degradation. Progress report, November 1992--November 1993

Technical Report · Fri Nov 12 04:00:00 EST 1993

DOI:https://doi.org/10.2172/10108626· OSTI ID:10108626

McInerney, M J

The kinetics of benzoate degradation by the anaerobic syntrophic bacterium, Syntrophus buswellii, in coculture with different sulfate reducers was studied with sulfate or nitrate as the electron acceptor. A threshold value for benzoate degradation dependent on the acetate concentration was observed with sulfate, but not nitrate, as the electron acceptor. No threshold was observed in tricultures containing an acetate-using sulfate reducer. The addition of the acetate-using sulfate reducer to cocultures that had degraded benzoate to its threshold value resulted in further degradation of benzoate to levels below the analytical detection limit (ca. 200 nM). These data are consistent with a thermodynamic explanation for the threshold, and exclude the possibility that the threshold was the result of the inhibitory action of the undissociated form of acetate.

• Research Organization: Oklahoma Univ., Norman, OK (United States). Dept. of Botany and Microbiology
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG05-89ER14003
• OSTI ID: 10108626
• Report Number(s): DOE/ER/14003--5; ON: DE94004374; BR: KC0600000
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
090900
550200
550500
59 BASIC BIOLOGICAL SCIENCES
ANAEROBIC CONDITIONS
BACTERIA
BENZOIC ACID
BIOCHEMICAL REACTION KINETICS
BIOCHEMISTRY
BIODEGRADATION
METABOLISM
PROCESSING
PROGRESS REPORT
SPECIES DIVERSITY