Fig. 7

Confocal images analysis of E. coli cells expressing different fluorescent proteins. The E. coli cells expressing eGFP (d–f), IeGFP (g–i), eGFP-I (j–l), torA-eGFP (m–o) or pelB-eGFP (p–r) were observed by inverted confocal microscope (Leica SP8). The cells of T304 strain (a–c) were used as the negative control. The bright-field images and the fluorescent images were arranged in the first and second row, respectively, and then were merged (the third row). The scale bars represent 5 μm