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Sensitivity of P. gingivalis W83, FLL455 and FLL456 to single NO stress. P. gingivalis strains were grown anaerobically to early exponential phase in BHI broth at 37°C, DEA NONOate (NO) was added to the cultures, and the cultures were further incubated for 24 h. Each experiment was done in triplicate. The error bars show standard deviations.
