Defluorination of organofluorine sulfur compounds by Pseudomonas sp. strain D2
Key, BD; Howell, RD; Criddle, CS
| HERO ID | 5084750 |
|---|---|
| In Press | No |
| Year | 1998 |
| Title | Defluorination of organofluorine sulfur compounds by Pseudomonas sp. strain D2 |
| Authors | Key, BD; Howell, RD; Criddle, CS |
| Journal | Environmental Science & Technology |
| Volume | 32 |
| Issue | 15 |
| Page Numbers | 2283-2287 |
| Abstract | BIOSIS COPYRIGHT: BIOL ABS. Little is known of the potential for biodegradation of fluorinated sulfonates. To evaluate this potential, the following model compounds were selected: difluoromethane sulfonate (DFMS), trifluoromethane sulfonate (TFMS), 2,2,2-trifluoroethane sulfonate (TES), perfluorooctane sulfonate (PFOS), and 1H,1H,2H,2H-perfluorooctane sulfonate (H-PFOS). A laboratory isolate designated Pseudomonas sp. strain D2 completely defluorinated DFMS under aerobic, sulfur-limiting conditions in a defined mineral medium. Strain D2 utilized DFMS as the sole source of sulfur, but not as a source of carbon or energy. DFMS utilization was inhibited by other forms of sulfur, and noncompetitive inhibition kinetics were observed, with Ki values of 3-4 muM for sulfate, sulfite, methane sulfonate, and cystine. Strain D2 was subsequently used to evaluate degradation of other fluorinated sulfonates. Growth and defluorination were only observed for those compounds containing hydrogen (TES and H-PFOS). T |
| Doi | 10.1021/es9800129 |
| Wosid | WOS:000075130500033 |
| Url | https://search.proquest.com/docview/230116821?accountid=171501 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Keyword | Environmental Studies; Volatile organic compounds; Environment; Kinetics; Organic chemistry; Bioremediation |