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Effect of PDAs on EHEC ethanolamine utilization genes in RF. Treatments include control (0 mM), TC (0.75 mM), EG (1.85 mM), CR (0.65 mM), TH (0.65 mM), and BR (2.6 mM). Error bars represent SEM (n = 3). *All the treatments are significantly different from control at P < 0.05.
