TABLE 3.
PAH substrate ranges for representative Puget Sound and Gulf of Mexico Cycloclasticus strains
| PAH | Initial concn (ppm) | % PAH recovered after 7 daysa
|
|
|---|---|---|---|
| Strain N3 | Strain W | ||
| Naphthalene | 5 | 0 ± 0 | 0 ± 0 |
| 1-Methylnaphthalene | 5 | 0 ± 0 | 0 ± 0 |
| 2-Methylnaphthalene | 5 | 0 ± 0 | 0 ± 0 |
| Acenaphthene | 1 | 48 ± 24 | 50 ± 32 |
| 2,6-Dimethylnaphthalene | 0.5 | 0 ± 0 | 0 ± 0 |
| Biphenyl | 5 | 43 ± 10 | 0 ± 0 |
| Phenanthrene | 1 | 0 ± 0 | 0 ± 0 |
| Anthracene | 0.5 | 0 ± 0 | NDb |
| Fluorene | 1 | 0 ± 0 | 0 ± 0 |
| Fluoranthene (+ phenanthrene)c | 1 | 40 ± 5 | ND |
| Pyrene (+ phenanthrene)c | 1 | 54 ± 18 | ND |
| Chrysens (+ phenanthrene)c | 1 | 116 ± 1 | ND |
a
Mean ± standard deviation (n = 3). A value of zero indicates that the compound was completely removed. The levels of recovery in sterile controls were near 100%.
b
ND, not determined.
c
Phenanthrene (10 ppm) was completely removed in all replicates by day 7.