Additional file 6.

Figure S4. HPLC elution profiles of carotenoids extracted from C. glutamicum ΔΔ strains. Detection by absorption at 470 nm. (A) Elution profiles of carotenoids extracted from C. glutamicum ΔΔ(pEKEx3/pVWEx1) (blue), ΔΔ(pEKEx3-crtB/pVWEx1-crtI) (red), ΔΔ(pEKEx3-crtB2/pVWEx1-crtI) (green). The red and green chromatograms show the accumulation of carotenoids including lycopene (L) which elutes after about 18 min. (B) Elution profiles of carotenoids extracted from C. glutamicum ΔΔ(pEKEx3/pVWEx1) (blue) and ΔΔ(pEKEx3-crtI2-1/2/pVWEx1-crtB2) (red).

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Heider et al. BMC Microbiology 2012 12:198   doi:10.1186/1471-2180-12-198