Killing Zone (IMAGE)

Arizona State University

Killing Zone

Caption

When bacteria contain the DNA plasmid pAPEC-1, they produce a powerful toxin that kills other bacteria. The top spot and bottom spot both contain pAPEC-1, creating a lysis zone where no other bacteria can grow within the area. The spot in the middle of the plate contains no pAPEC-1, allowing bacteria to grow and surround the spot.

Credit

The Biodesign Institute, Arizona State University

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