TABLE 1.
Induction of green fluorescence in E. coli JM109/pCmGFPbenR by various compounds
| Inducing compound | Fluorescence (AU)a |
|---|---|
| None | 44 ± 2 |
| Benzoate and derivatives | |
| Benzoate | 3,682 ± 160 |
| 2-Hydroxybenzoate | 2,215 ± 177 |
| 3-Hydroxybenzoate | 631 ± 103 |
| 4-Hydroxybenzoate | 44 ± 3 |
| 3,4-Hydroxybenzoic acid | 47 ± 1 |
| 2,5-Hydroxybenzoic acid | 67 ± 8 |
| Benzene and derivatives | |
| Benzene | 44 ± 3 |
| Toluene | 38 ± 2 |
| Ethylbenzene | 45 ± 3 |
| Benzyl alcohol | 61 ± 5 |
| Benzaldehyde | 840 ± 64 |
| Aniline | 40 ± 1 |
| Benzylamine | 45 ± 2 |
| Benzonitrile | 40 ± 0 |
| Benzamide | 39 ± 1 |
| Acetophenone | 43 ± 1 |
| Benzoic acid methyl ester | 41 ± 2 |
| Phenol and derivatives | |
| Phenol | 47 ± 2 |
| Catechol | 40 ± 2 |
| o-Cresol | 42 ± 2 |
| m-Cresol | 41 ± 2 |
| p-Cresol | 39 ± 1 |
| Polyaromatics | |
| Naphthalene | 47 ± 3 |
| 1,2-Dihydroxynaphthalene | 41 ± 2 |
| Biphenyl | 47 ± 1 |
| 2,3-Dihydroxybiphenyl | 60 ± 6 |
| Other | |
| cis,cis-Muconic acid | 43 ± 1 |
a
Fluorescence intensity values were normalized to cell densities. All values are the means of five measurements. Arbitrary fluorescence units (AU) represent the fluorescence due to GFP production.