Alternative pathways foro-xylene orm-xylene andp-xylene degradation in aPseudomonas stutzeri strain
Copyright policy )Alternative pathways foro-xylene orm-xylene andp-xylene degradation in aPseudomonas stutzeri strain
Pseudomonas stutzeri OX1 is able to grow ono-xylene but is unable to grow onm-xylene andp-xylene, which are partially metabolized through theo-xylene degradative pathway leading to the formation of dimethylphenols toxic to OX1.P. stutzeri spontaneous mutants able to grow onm-xylene andp-xylene have been isolated. These mutants soon lose the ability to grow ono-xylene. Data from HPLC analyses and from induction studies suggest that in these mutantsm-xylene andp-xylene could be metabolized through the oxidation of a methyl substituent.P. stutzeri chromosomal DNA is shown to share homology with pWW0 catabolic genes. In the mutant strains the region homologous to pWW0 upper pathway genes has undergone a genomic rearrangement.
- University of Milano-Bicocca Italy
- University of Milan Italy
- University of Insubria Italy
- Università dell Insubria (Varese) Italy
o-xylene, biodegradation, Pseudomonas, dimethylphenols; m-xylene; o-xylene; p-xylene degradation; Pseudomonas stutzeri;
o-xylene, biodegradation, Pseudomonas, dimethylphenols; m-xylene; o-xylene; p-xylene degradation; Pseudomonas stutzeri;
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