Trichloroethylene degradation by two independent aromatic-degrading pathways in Alcaligenes eutrophus JMP134.
The bacterium Alcaligenes eutrophus JMP134(pJP4) degrades trichloroethylene (TCE) by a chromosomal phenol-dependent pathway and by the plasmid-encoded 2,4-dichlorophenoxyacetic acid pathway. The two pathways were independent and exhibited different rates of removal and capacities for quantity of TCE removed. The phenol-dependent pathway was more rapid (0.2 versus 0.06 nmol of TCE removed per min per mg of protein) and consumed all detectable TCE. The 2,4-dichlorophenoxyacetic acid-dependent pathway removed 40 to 60% of detectable TCE.
Harker
A R
AR
Department of Botany and Microbiology, Oklahoma State University, Stillwater 74078.
Kim
Y
Y
D015084:2,4-Dichlorophenoxyacetic Acid / Q000378:metabolism; D000421:Alcaligenes / Q000378:metabolism*; D001673:Biodegradation, Environmental; D001711:Biotransformation; D007700:Kinetics; D019800:Phenol; D010636:Phenols / Q000378:metabolism; D014241:Trichloroethylene / Q000378:metabolism*
D010636:Phenols; D015084:2,4-Dichlorophenoxyacetic Acid; D014241:Trichloroethylene; D019800:Phenol