Dechlorination of Chloroform by Methanosarcina Strains
AUTOR(ES)
Mikesell, Mark D.
RESUMO
Dehalogenation of carbon tetrachloride, chloroform, and bromoform in pure cultures of Methanosarcina sp. strain DCM and Methanosarcina mazei S6 was demonstrated. The initial dechlorination product of chloroform was methylene chloride (dichloromethane), which accumulated transiently to about 70% of the added chloroform; trace amounts of chloromethane were also detected. The amount of chloroform dechlorinated per mole of methane produced was approximately 10 times greater than the ratio observed previously for tetrachloroethene dechlorination by these strains. The production of 14CO2 from [14C]chloroform and the absence of 14CH4 imply that processes in addition to reductive dechlorination operate.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=184373Documentos Relacionados
- Chloroform degradation in methanogenic methanol enrichment cultures and by Methanosarcina barkeri 227.
- Dependence of tetrachloroethylene dechlorination on methanogenic substrate consumption by Methanosarcina sp. strain DCM.
- Evidence for the involvement of corrinoids and factor F430 in the reductive dechlorination of 1,2-dichloroethane by Methanosarcina barkeri.
- Dechlorination of chloroacetanilide herbicides by thiosulfate salts
- INACTIVATION OF BACTERIOPHAGE BY CHLOROFORM AND X IRRADIATION*