Fig. 2From: Synergistic action of SPI-1 gene expression in Salmonella enterica serovar typhimurium through transcriptional crosstalk with the flagellar systemAcetate and yeast extract (YE) synergistically induce expression from the hilA promoter during growth in TB medium. Expression from hilA promoter was determined using single-copy transcriptional fusions to GFP as determined using flow cytometry. hilA promoter activity in wild-type cells during: growth in TB medium (a); growth in TB medium containing 1% NaCl (b); and growth in TB medium containing 10 mM sodium acetate (c) at various concentrations of yeast extract. Negative control (NC) is the measured fluorescence of wild-type cells not containing the gfp gene during growth in TB medium. Analysis of data is provided in Fig. 3Back to article page