Chlorate and nitrate reduction pathways are separately induced in the perchlorate-respiring bacterium Dechlorosoma sp. KJ and the chlorate-respiring bacterium Pseudomonas sp. PDA
| Autor: | Lisa M. Steinberg, John J. Trimble, Jianlin Xu, Bruce E. Logan |
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| Rok vydání: | 2004 |
| Předmět: |
Environmental Engineering
Denitrification Anaerobic respiration Inorganic chemistry Chlorate reductase Bacteria Anaerobic Perchlorate chemistry.chemical_compound Nitrate Pseudomonas Soil Pollutants Water Pollutants Waste Management and Disposal Water Science and Technology Civil and Structural Engineering chemistry.chemical_classification Nitrates Perchlorates Ecological Modeling Chlorate Electron acceptor Sodium Compounds Pollution Kinetics Biodegradation Environmental chemistry Chlorite dismutase Oxidoreductases |
| Zdroj: | Water Research. 38:673-680 |
| ISSN: | 0043-1354 |
| DOI: | 10.1016/j.watres.2003.10.017 |
| Popis: | The effect of nitrate on perchlorate and chlorate reduction by perchlorate-respiring bacteria (PRB), and on chlorate reduction by chlorate-respiring bacteria (CRB), is not well understood, particularly with respect to the induction of pathways used to degrade these different chemicals. Based on kinetic data obtained in a series of batch tests, we determined that perchlorate respiratory enzymes were inducible (by chlorate or perchlorate) and separate from those used for denitrification by PRB strain Dechlorosoma sp. KJ. Aerobically grown cultures of KJ had lag times of greater than 0.3-2 days when transferred to a medium containing only perchlorate, chlorate, or nitrate as an electron acceptor. There were no lag times for transfers between identical media. Washed cells reduced very little nitrate ( |
| Databáze: | OpenAIRE |
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