Battle of the bugs: Pseudomonas breaches cell walls of rival bacteria without hurting itself

Microbiologists have uncovered a sneaky trick by the bacterium Pseudomonas aeruginosa to oust its competitors. Its means of attack helps it survive in the outside environment and may even help it cause infection. P. aeruginosa injects toxins into rival bacteria through a needle-like structure. The toxins degrade their competitors' protective barriers -- their cell walls.

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