Table 2.
Intracellular and extracellular concentration of 6-hydroxymethylpterin and folate in L. plantarum harboring pNZ7021 and pNZ7026 in the presence and absence of pABA
| 6-Hydroxymethylpterin (nmol/50-ml culture) | Folate μg/L per OD600 unit | ||||
|---|---|---|---|---|---|
| L. plantarum harboring | μmax h-1 | Intracellular | Extracellular | Intracellular | Extracellular |
| pNZ7021 | 0.61 (0.02) | 0.1 | NDa | ND | ND |
| pNZ7021 + pABA | 0.60 (0.02) | 0.1 | NDa | 3.93 (1) | 8.56 (3) |
| pNZ7026 | 0.45 0.02) | 3.0 | 1692 | ND | ND |
| pNZ7026 + pABA | 0.44 (0.01) | 0.2 | 217 | 216 (29) | 3020 (202) |
a ND, not detectable
Note: The standard deviation of the folate assay is shown between brackets.