Biotic uptake and release of phosphorus by a wetland sediment

摘要

Currently there is considerable controversy about the role of bacteria in the direct uptake and release of phosphorus by sediments. This paper reports work aimed at testing the hypothesis that microbial uptake and release of phosphorus by sediment. Experiments were undertaken with a wetland sediment to which was added both a carbon source (glucose or acetate) and orthophosphate (P). The carbon sources were chosen to represent a simple available carbon source (glucose) and a fermentation product (acetate).