TABLE 5.
FRC contaminants and potential bioremediating organisms
| Contaminant | Physiological potential | Potential bioremediating organism (reference) | Clone library
|
|
|---|---|---|---|---|
| % Before | % After | |||
| U(VI) | Reduction and immobilization | Geobacter sp. (30) | 4.5 | 37.0 |
| by FeRB | Anaeromyxobacter dehalogenans (16) | |||
| Desulfitobacterium metallireducens (12) | ||||
| Reduction and immobilization | Clostridium beijerinckii (55) | 5.7 | 10.5 | |
| by fermentative FeRB | Serratia proteamaculans (30) | |||
| Nitrate | Reduction | Pseudomonas stutzeri (39) | 22.0 | 27.1 |
| Alcaligenes defragrans (17) | ||||
| Ralstonia pickettii (41) | ||||
| Anaeromyxobacter dehalogenans (48) | ||||
| Denitrifying Fe-oxidizing clone (53) | ||||
| Paenibacillus sp. (50) | ||||
| Chlorinated hydrocarbons | Dechlorination | Methylobacterium dichloromethanicum (21) | 42.5 | 34.4 |
| Anaeromyxobacter dehalogenans (48) | ||||
| Clone from TCE-contaminated site (A. B. Carroll and S. H. Zinder, unpublished data) | ||||
| Dechloromonas sp. (30) | ||||
| Polychlorinated biphenyls | Dechlorination | Acidosphaera rubrifaciens (40) | 14.9 | 2.2 |
| Caulobacter leidyi (40) | ||||
| Fuel hydrocarbons | Degradation | Burkholderia sp. N2P5 (38) | 5.7 | 14.9 |
| Sphingomonas paucimobilis (38) | ||||