Kinetics of Mixed Microbial Assemblages Enhance Removal of Highly Dilute Organic Substrates
1988; American Society for Microbiology; Volume: 54; Issue: 8 Linguagem: Inglês
10.1128/aem.54.8.2054-2057.1988
ISSN1098-5336
AutoresDavid L. Lewis, Robert E. Hodson, Huey‐Min Hwang,
Tópico(s)Pharmaceutical and Antibiotic Environmental Impacts
ResumoOur experiments with selected organic substrates reveal that the rate-limiting process governing microbial degradation rates changes with substrate concentration, S , in such a manner that substrate removal is enhanced at lower values of S . This enhancement is the result of the dominance of very efficient systems for substrate removal at low substrate concentrations. The variability of dominant kinetic parameters over a range of S causes the kinetics of complex assemblages to be profoundly dissimilar to those of systems possessing a single set of kinetic parameters; these findings necessitate taking a new approach to predicting substrate removal rates over wide ranges of S .
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