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. 2018 Sep 20;11:1523–1536. doi: 10.2147/IDR.S173455

Figure 4.

Figure 4

Detection of blaIMP in plasmids of eight P. aeruginosa strains by Southern blot.

Notes: (A) PFGE after digestion with nuclease S1 (180 U/μL, Takara Bio Inc.), (B) Southern hybridization of plasmids (DIG HIGH Prime DNA Labeling and Detection Starter Kit II) using blaIMP as a probe. Line 1: Control strain E. coli NCTC 50192 with four plasmids: 154 Kb, 66 Kb, 48 Kb and 7 Kb, Line 2: PE06; Line 3: PE21; Line 4: PE52; Line 5: PE62; Line 6: PE63; Line 7: PE64; Line 8: PE73 and Line 9: PE83. The black arrows indicate the positive signal corresponding to the hybridization with blaIMP in plasmids. The experiment was done three times.

Abbreviation: PFGE-S1, Pulsed-field gel electrophoresis with nuclease S1.