TABLE 4.

Genes detected in enrichment culture from TFD soil using naphthalene as sole carbon source

gi no.Gene functionMicroorganismLog mean signal ratioaSNRb
4704462Naphthalene dioxygenase large subunitc Rhodococcus sp. strain NCIMB120381.79 ± 0.6245.12 ± 3.24
4704463Naphthalene dioxygenase small subunitc Rhodococcus sp. strain NCIMB120381.46 ± 0.5622.54 ± 3.27
1771524Muc7onate cycloisomerasec R. opacus 1.43 ± 0.5617.62 ± 2.83
1771525Muconolactone isomerasec R. opacus 1.36 ± 0.5415.86 ± 1.29
89783112-Hydroxy-6-oxo-6-phenylhexa-2,4-dienoate hydrolase Rhodococcus sp. strain RHA11.35 ± 0.5515.69 ± 1.45
10933936Putative alkane hydroxylase Rhodococcus sp. strain 1BN1.31 ± 0.5418.83 ± 2.96
89263873-(2,3-Dihydroxylphenyl) propionic acid dioxygenase Rhodococcus sp.1.12 ± 0.5110.56 ± 0.73
6652685Biphenyl dioxygenase Pseudomonas pseudoalcaligens 1.01 ± 0.4910.44 ± 1.72
14289339Benzoate dioxygenase Rhodococcus sp. strain 190700.86 ± 0.479.25 ± 0.43
97113142,3-Dihydroxybiphenyl 1,2-dioxygenase Rhodococcus sp. strain RHA10.85 ± 0.475.98 ± 0.83
29350273-Oxoadipate enol-lactone hydrolase Rhodococcus sp.0.80 ± 0.4710.44 ± 0.75
89783072,3-Dihydroxybiphenyl 1,2-dioxygenase Rhodococcus sp. strain RHA10.77 ± 0.4614.02 ± 1.19
2398775Putative 1,2-catechol dioxygenase R. opacus 0.74 ± 0.4610.21 ± 0.98
  • a Hybridization signal ratios (log mean ± standard deviation from six replicates) of the naphthalene-enriched consortium to the pyruvate-enriched consortium.

  • b Mean ± standard deviation from six replicates.

  • c Gene possibly involved in naphthalene degradation pathway.