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Ecoenzymatic Stoichiometry of Stream Sediments with Comparison to Terrestrial Soils
Citation:
SINSABAUGH, R. L., J. J. FOLLSTAD SHAH, B. H. HILL, AND C. M. ELONEN. Ecoenzymatic Stoichiometry of Stream Sediments with Comparison to Terrestrial Soils . Biochemistry. Consultants Bureau, 111(1-3):455-467, (2012).
Impact/Purpose:
In this study, we extend the development of ecoenzymatic stoichiometry to the surface sediments of stream ecosystems using data collected in a nationwide survey. The data set is larger and more comprehensive than those used in our previous studies. The data include the first broad survey of phenol oxidase, peroxidase and sulfatase activities in freshwater ecosystems. In addition, the measurement of multiple glycosidases and aminopeptidases provides greater resolution of the contributions of various monosaccharides and amino acids to microbial metabolism. By comparing these results to those for terrestrial soils, we conclude that ecoenzymatic stoichiometry reflects broad biogeochemical equilibria between organic matter composition, nutrient availability and microbial metabolism.
Description:
In this study, we extend the development of ecoenzymatic stoichiometry to the surface sediments of stream ecosystems using data collected in a nationwide survey. The data set is larger and more comprehensive than those used in our previous studies. The data include the first broad survey of phenol oxidase, peroxidase and sulfatase activities in freshwater ecosystems. In addition, the measurement of multiple glycosidases and aminopeptidases provides greater resolution of the contributions of various monosaccharides and amino acids to microbial metabolism. By comparing these results to those for terrestrial soils, we conclude that ecoenzymatic stoichiometry reflects broad biogeochemical equilibria between organic matter composition, nutrient availability and microbial metabolism.
