Faculty Research & Creative Activity
Document Type
Article
Publication Date
January 2007
Abstract
The microbial consumption of oxalate was examined under anaerobic conditions in soil suspensions at 15-20 degree C. With soil (horizon Ah, pH 6.4) from a beech forest, microbial consumption of added oxalate (15 mM) began after 10 days, and oxalate was totally consumed by day 20. The presence of supplemental electron donors (acetate, glucose, vanillate, or hydrogen) or electron acceptors (nitrate or sulfate) did not significantly influence anaerobic oxalate consumption, whereas supplementation of soil suspensions with CO2/bicarbonate totally repressed oxalate consumption. Thus, CO2-, nitrate- or sulfate-respiring bacteria were apparently not active in the anaerobic consumption of oxalate in these soil suspensions. With soil (horizon Bt, pH 7) from a beech forest, oxalate consumption began after an approximate lag of 14 days, and oxalate was totally consumed by day 41. With both soils, acetate was the major aliphatic organic acid detected during oxalate consumption. Near pH-neutral soils from two additional forest field sites were also competent in anaerobic oxalate consumption. In contrast, anaerobic oxalate consumption was negligible in suspensions prepared with acidic soils (
Recommended Citation
Daniel, Steven L.; Pilsl, Christine; and Drake, Harold L., "Anaerobic oxalate consumption by microorganisms in forest soils" (2007). Faculty Research & Creative Activity. 123.
https://thekeep.eiu.edu/bio_fac/123
Included in
Bacteriology Commons, Environmental Microbiology and Microbial Ecology Commons, Microbial Physiology Commons
