TABLE 4.

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

gi no.	Gene function	Microorganism	Log mean signal ratioa	SNRb
4704462	Naphthalene dioxygenase large subunitc	Rhodococcus sp. strain NCIMB12038	1.79 ± 0.62	45.12 ± 3.24
4704463	Naphthalene dioxygenase small subunitc	Rhodococcus sp. strain NCIMB12038	1.46 ± 0.56	22.54 ± 3.27
1771524	Muc7onate cycloisomerasec	R. opacus	1.43 ± 0.56	17.62 ± 2.83
1771525	Muconolactone isomerasec	R. opacus	1.36 ± 0.54	15.86 ± 1.29
8978311	2-Hydroxy-6-oxo-6-phenylhexa-2,4-dienoate hydrolase	Rhodococcus sp. strain RHA1	1.35 ± 0.55	15.69 ± 1.45
10933936	Putative alkane hydroxylase	Rhodococcus sp. strain 1BN	1.31 ± 0.54	18.83 ± 2.96
8926387	3-(2,3-Dihydroxylphenyl) propionic acid dioxygenase	Rhodococcus sp.	1.12 ± 0.51	10.56 ± 0.73
6652685	Biphenyl dioxygenase	Pseudomonas pseudoalcaligens	1.01 ± 0.49	10.44 ± 1.72
14289339	Benzoate dioxygenase	Rhodococcus sp. strain 19070	0.86 ± 0.47	9.25 ± 0.43
9711314	2,3-Dihydroxybiphenyl 1,2-dioxygenase	Rhodococcus sp. strain RHA1	0.85 ± 0.47	5.98 ± 0.83
2935027	3-Oxoadipate enol-lactone hydrolase	Rhodococcus sp.	0.80 ± 0.47	10.44 ± 0.75
8978307	2,3-Dihydroxybiphenyl 1,2-dioxygenase	Rhodococcus sp. strain RHA1	0.77 ± 0.46	14.02 ± 1.19
2398775	Putative 1,2-catechol dioxygenase	R. opacus	0.74 ± 0.46	10.21 ± 0.98

^aHybridization signal ratios (log mean ± standard deviation from six replicates) of the naphthalene-enriched consortium to the pyruvate-enriched consortium.

^bMean ± standard deviation from six replicates.

^cGene possibly involved in naphthalene degradation pathway.