Fig. 3From: Reduced virulence in tigecycline-resistant Klebsiella pneumoniae caused by overexpression of ompR and down-regulation of ompK35Changes in phenotypes. A Comparison of colony phenotypes in the strains used in this study. B The lengths of stretched strings in bacterial colonies. A stretched colony length of > 5 mm was defined as positive. C, D The ODs of supernatants were measured following low-speed centrifugation. The hypermucoviscous strains produced turbid supernatants. **P < 0.01; ***P < 0.001; ****P < 0.0001Back to article page