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Naphthalene degradation by Pseudomonas putida strains in soil model systems with arsenite

Process Biochemistry, ISSN: 1359-5113, Vol: 39, Issue: 10, Page: 1305-1308
2004
  • 12
    Citations
  • 0
    Usage
  • 17
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    12
    • Citation Indexes
      12
  • Captures
    17

Article Description

The effect of arsenite on the degradation of naphthalene, a polycyclic aromatic hydrocarbon (PAH), by P. putida strains BS202 (NPL-1) and BS238 (pBS2; pBS3031) was studied. Their resistance to arsenite is determined by either chromosomal or plasmid genes. In a soil model system supplied with arsenite (400 μg/g dry soil), the cell density of strain BS238 (pBS2; pBS3031), grown on naphthalene, remained virtually unaltered though naphthalene consumption was slightly delayed (1 day lag); naphthalene disappeared by the 6th day. Under the same experimental conditions, strain BS202 (NPL-1) was characterized by a long lag-phase during the first 2 days of cultivation and a slow consumption of naphthalene: by the 6th day naphthalene residues were still detectable in the soil model system. The effect of arsenite on naphthalene degradation by the PAH-degrading P. putida strains exhibiting different mechanisms of the arsenite resistance is discussed.

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