| Autor: |
Löffler FE; Center for Microbial Ecology, Michigan State University, East Lansing, Michigan 48824-1325, USA., Tiedje JM, Sanford RA |
| Jazyk: |
angličtina |
| Zdroj: |
Applied and environmental microbiology [Appl Environ Microbiol] 1999 Sep; Vol. 65 (9), pp. 4049-56. |
| DOI: |
10.1128/AEM.65.9.4049-4056.1999 |
| Abstrakt: |
Measurements of the hydrogen consumption threshold and the tracking of electrons transferred to the chlorinated electron acceptor (f(e)) reliably detected chlororespiratory physiology in both mixed cultures and pure cultures capable of using tetrachloroethene, cis-1, 2-dichloroethene, vinyl chloride, 2-chlorophenol, 3-chlorobenzoate, 3-chloro-4-hydroxybenzoate, or 1,2-dichloropropane as an electron acceptor. Hydrogen was consumed to significantly lower threshold concentrations of less than 0.4 ppmv compared with the values obtained for the same cultures without a chlorinated compound as an electron acceptor. The f(e) values ranged from 0.63 to 0.7, values which are in good agreement with theoretical calculations based on the thermodynamics of reductive dechlorination as the terminal electron-accepting process. In contrast, a mixed methanogenic culture that cometabolized 3-chlorophenol exhibited a significantly lower f(e) value, 0.012. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
|
