Figure 6.

Expression of pha genes in P. chlororaphis PA23 mutants defective in the PHZ and/or PRN structural genes or in genes that regulate PHZ and PRN synthesis in cultures containing Ramsay’s Minimal Medium (RMM) plus (A) glucose or (B) octanoic acid as the carbon source. The housekeeping gene rpoB was chosen to normalize expression values of target genes. Expression levels in the WT were normalized to 1. Data was normalized and expression relative to wild type PA23 was calculated. Differentially expressed genes are indicated with an asterisk (* p < 0.01).