PAHs with Three or More Rings

Mycobacterium sp. BBl Pseudomonas cepacia F297 Pseudomonas putida GZ44 Mycobacterium sp. RJGll-135 Burkholderia cepacia Pseudomonas paucimobilis Pseudomonas paucimobilis Mycobacterium vanbaalenii PYR-1 

Note Bi, biphenyl Nap, naphthalene Phe, phenanthrene Anth, anthracene H, fluoranthene Pyr, pyrene Chr, chrysene  

BaAnth, benz[a]anthracene BaPyr, benzo[a]pyrene BbHu,benzo[l)]fluoranthene DbaAnth, dibenz[a,/i]anthracene 3-Me-Chol, 3-methylcholanthrene. 

The stereospecific dioxygenation of several PAHs by bacteria has been described, and includes the following illustrative examples  

The enzymes involved in the degradation of phenanthrene by Nocardioides sp. strain KP7 have been characterized. In this strain, the genes are chromosomal, and phdA and phdB encoding the a- and P-subunits of the dioxygenase, phdC and phdD that encode the ferredoxin, and ferredoxin reductase have been cloned and sequenced (Saito et al. 2000). The order of the genes 

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