Fig. 4

Transcript levels for genes in the large TFP operon under different conditions and media. a and b Transcript levels of cells grown in BHI (squares), PGY (inverted triangles) and FABG (open triangles) in liquid (a) and on plates (b). The mean and SEM are shown. c, d, and e Transcript levels in cells grown on plates (triangles) and in liquid (circles) in BHI (c), PGY (d), and FABG (e). The mean and SEM are shown for two independent RNA samples. Asterisks denote genes showing a significantly greater level (P < 0.05) of transcripts on plate versus liquid grown cells using the two-tailed students t-test. Data points were connected by lines to illustrate trends in changes of transcript levels