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. 2015 Dec 31;60(1):544–553. doi: 10.1128/AAC.01650-15

TABLE 4.

DNA- and pH-induced aminoglycoside resistance in P. aeruginosa PAO1 is blocked by neutralizing the pH

Medium condition pH MIC (μg/ml)
Gm Tm
eDNA
    LB + DNA (0.2%) 5.75 16 16
    LB 7 4 2
    LB + DNA + 10 μM Mg2+ 5.76 8 8
    LB + DNA + 10 mM Tris 7.02 8 4
    LB + DNA + 10 μM Mg2+ + 10 mM Tris 7 2 2
    LB + DNA + l-Arg (0.4%) 8.25 4 2
    LB + DNA + 10 mM NaHCO3 7.4 2 1
Acid pH
    LB (pH 5.5) 5.5 8 8
    LB 7 1 1
    LB (pH 5.5) + l-Arg (0.4%) 8.25 2 1