FIG 8.

Intracellular folate produced by B. multivorans. (A) Intracellular folate produced by the wild type (WT), a folE2 mutant (ΔfolE2), a genetically complemented folE2 mutant strain (ΔfolE2/pfolE2), and a folE1 mutant (ΔfolE1) was quantified. Strains were grown for 6, 14, and 21 h under dark (open bars) and blue-light (solid bars) (17.3 μmol · s⁻¹ · m⁻²) conditions. (B) Intracellular folates produced by the wild type, a litR mutant (ΔlitR), and a genetically complemented strain of litR mutant (ΔlitR/plitR) were quantified. Illumination conditions were the same as for panel A. Data presented are the means of duplicated measurements. The error bars indicate standard errors.