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Appl. Environ. Microbiol., 09 1997, 3719-3723, Vol 63, No. 9
LG Whyte, L Bourbonniere and CW Greer
Three hydrocarbon-degrading psychrotrophic bacteria were isolated from
petroleum-contaminated Arctic soils and characterized. Two of the strains,
identified as Pseudomonas spp., degraded C5 to C12 n-alkanes, toluene, and
naphthalene at both 5 and 25 degrees C and possessed both the alk catabolic
pathway for alkane biodegradation and the nah catabolic pathway for
polynuclear aromatic hydrocarbon biodegradation. One of these strains
contained both a plasmid slightly smaller than the P. oleovorans OCT
plasmid, which hybridized to an alkB gene probe, and a NAH plasmid similar
to NAH7, demonstrating that both catabolic pathways, located on separate
plasmids, can naturally coexist in the same bacterium.
Copyright © 1997, American Society for Microbiology
Biodegradation of petroleum hydrocarbons by psychrotrophic Pseudomonas strains possessing both alkane (alk) and naphthalene (nah) catabolic pathways
NRC-Biotechnology Research Institute, Montreal, Quebec, Canada.
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