[Objective] To study the effect of p-nitrophenol(PNP) on persisters of Escherichia coli and Pseudomonas aeruginosa and to analyze the transcriptome to illustrate the impact of PNP on persister formation. [Methods] Ofloxacin was used to determine the bacteria persisters number. Cell self-digestion assay was done and the effect of respiratory inhibitors carbonyl cyanide chlorobenzene hydrazone(CCCP) on bacteria persisters was studied as well. Based on analysis of bacterial transcriptome, two genes(cyoA and ap...