FIG. 4.

Transcript abundance of the PHB synthesis genes in the wild type (black bars) and the sll0783 mutant (spotted bars). Transcript levels were determined by qRT-PCR with gene-specific primers. The transcript levels of the wild type at time point zero were set to 1. All values were normalized to the level of the reference gene rnpB. The following four genes of the PHB synthesis pathway were examined: (A) PHB synthase subunit one (slr1829), (B) PHB synthase subunit two (slr1830), (C) β-ketothiolase (slr1993), and (D) acetoacetyl-CoA reductase (slr1994).