Fig. 5
From: Metabolic engineering of Escherichia coli for efficient degradation of 4-fluorophenol
Scanning electron micrographs of BL-control and BL-fpd after 4-FP treatment. a View of BL-control treated with 4 mM 4-FP for 12 h (average cell length: 1.639 μm). The location of viscous substances attached to the cell surface was marked by red arrow; b View of BL-fpd treated with 4 mM 4-FP for 12 h (average cell length: 1.921 μm, P < 0.05); SEM operating parameters: 15 kV 7.2 mm × 2.50 K. Scale bars: a–b 2 μm