Measurement of photosynthesis gene expression in the wild-type strain SB1003, in the crtJ-disrupted strain CD2-4, in the aerR-disrupted strain ES8, and in the strain CD3 with a deletion of aerR-crtJ. The four graphs represent aerobic expression levels of the pucB::lacZ fusion plasmid pLHIIZ (26), the crtI::lacZ fusion plasmid pCrtI:ZΩ, the bchC::lacZ fusion plasmid pDAY23Ω, and the pufQ::lacZ fusion plasmid pCB532Ω (4). β-Galactosidase activities are as described for Fig. 3.