TABLE 1.
Growth of P. aeruginosa PAO1 and Pseudomonas strain PAI-A on acyl-homoserine lactones and other energy sourcesa
| Substrate |
P. aeruginosa PAO1
|
Pseudomonas strain PAI-A
|
||
|---|---|---|---|---|
| Yield (g · mol−1) | Doubling time (h) | Yield (g · mol−1) | Doubling time (h) | |
| C8-dl-HSL | 95 ± 4 | 15.0 ± 2 | +, NDb | ND |
| C10-dl-HSL | 97 ± 3 | 14.0 ± 3.8 | +, ND | ND |
| 3OC12-l-HSL | 76 ± 10 | 25.0 ± 3 | 84 ± .2 | 25.0 ± 3.5 |
| C12-dl-HSL | 84 ± 7 | 14.9 ± 7.5 | 80 ± 18 | 16.5 ± 3 |
| C14-dl-HSL | 84 ± 12 | 21.0 ± 5.3 | +, ND | ND |
| Succinate | 43 ± 3 | 0.6 ± .09 | 49 ± 3.8 | 0.6 ± .02 |
| Decanoate | 130 ± 3 | ND | 126 ± .5 | ND |
| Dodecanoate | 141 ± 4 | ND | 155 ± 8.4 | ND |
| Tetradecanoate | 177 ± 16 | ND | 198 ± 3 | ND |
a
Values represent the averages ± standard errors from at least duplicate cultures. Studies were performed with minimal salts media buffered at pH 5.5 for strain PAO1 and pH 7.2 for strain PAI-A. Neither strain utilized HSL, homoserine, C4HSL, 3OC6HSL, C6HSL, or C7HSL as an energy source.
b
+, positive yield; ND, not determined.