Fig. 5.

Real-time PCR analysis of genes in Sphingobium sp. PNB involved in the metabolism of aromatic hydrocarbons. Heat map representing expression levels of different genes, induced with phenanthrene and biphenyl. The fold change is shown in shades of red, yellow and green which indicate decreased, unchanged and increased levels of expression, respectively. Fold change denotes change in expression level of a gene in induced cells compared to the uninduced (succinate grown) cells. Double slash (//) represents gap between distantly located genes or genes present in different loci. Orientation of catA, identified in different loci, with respect to sequenced gene clusters is not known. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)