Table 6 Annotated genes involved in hydrocarbons degradation pathways

Cytochrome P450 monooxygenase (EC:1.14.13.12)

PAHs degradation, alkane biodegradation [78, 79]

79

44

Phenol hydroxylase

Phenol degradation [17]

4

4

Epoxide hydrolase (EC:3.3.2.9)

PAHs degradation [80]

3

2

Oxidoreductase

Organic compound metabolism [81]

13

8

Salicylate hydroxylase (EC:1.14.13.24)

Naphthalene degradation [82]

13

4

Laccase (EC:1.10.3.2)

PAHs degradation [83]

2

2

Catechol 1,2-dioxygenase (EC:1.13.11.1)

Phenol degradation [17]

2,4-dichlorophenol 6-monooxygenase (EC:1.14.13.7; EC:1.14.13.20)

Chlorinated phenols degradation [84]

5

5

2,3-dihydroxybenzoate decarboxylase (EC:4.1.1.46)

2,3-dihydroxybenzoate degradation [85]

1

1

Carboxy-cis,cis-muconate cyclase

Phenol degradation [17]

4

2

Phenylacetate 2-hydroxylase

Homogentisate degradation [86]

1

2

2-nitropropane dioxygenase (EC:1.13.12.16)

Nitroalquene oxidation [87]

4

4

Biphenyl-2,3-diol 1,2-dioxygenase

Byphenyl degradation [88]

1

2

Dienelactone hydrolase

Chloroaromatic degradation [89]

2

7

Vanillyl-alcohol oxidase (EC:1.1.3.38)

Aromatic degradation [90]

4

6

Cyclopentanone 1,2-monooxygenase (EC:1.14.13.8; EC:1.14.13.16)

Cyclopentanol degradation [91]

2

2

Tyrosinase

Phenolic compounds degradation [92]

1

3

Lignostilbene dioxygenase (EC:1.13.11.43)

Lignin degradation [93]

2

1

Total number of genes

145

103