Tributyl phosphate degradation by Rhodopseudomonas palustris and other photosynthetic bacteria.
Tributyl phosphate (TBP) is widely used in nuclear fuel processing and other waste generating chemical industries. Although TBP is bacteriostatic, some microbes are resistant to it and may degrade it. Under dark aerobiosis, purple non-sulfur photosynthetic bacteria degraded up to 0.6 mM TBP, initially present at 2 mM, within 3 weeks and under photosynthetic conditions, Rhodopseudomonas palustris degraded 1.6 mM TBP within 3 weeks. The curing of the Rhodopseudomonas palustris endogenous plasmid demonstrated that the genes involved in the TBP degradation are chromosomal.
Laboratoire de Bioénergétique Cellulaire, DSV-DEVM, Bâtiment 156, CEA Cadarache, F-13108, Saint-Paul-lez-Durance Cedex, France.
Cécile
C
Berne
Bruno
B
Allainmat
Daniel
D
Garcia
D000332:Aerobiosis; D001426:Bacterial Proteins / Q000235:genetics / Q000378:metabolism; D002876:Chromosomes, Bacterial / Q000235:genetics; D003624:Darkness; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008027:Light; D010755:Organophosphates / Q000378:metabolism*; D010788:Photosynthesis / Q000502:physiology / Q000528:radiation effects; D010957:Plasmids / Q000235:genetics; D016992:Rhodobacter / Q000378:metabolism* / Q000528:radiation effects; D016354:Rhodobacter capsulatus / Q000378:metabolism / Q000528:radiation effects; D012242:Rhodobacter sphaeroides / Q000378:metabolism / Q000528:radiation effects; D012241:Rhodopseudomonas / Q000235:genetics / Q000378:metabolism* / Q000528:radiation effects; D012247:Rhodospirillum rubrum / Q000378:metabolism* / Q000528:radiation effects; D013696:Temperature
D001426:Bacterial Proteins; D010755:Organophosphates; C009524:tributyl phosphate