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. 1997 Feb 18;94(4):1059–1063. doi: 10.1073/pnas.94.4.1059

Figure 1.

Figure 1

Scheme of a tightly regulated biological containment system to control survival of bacteria by availability of 3MB or other hydrocarbon effectors of the XylS protein. (A) Survival. (B) Induction of a lethal phenotype.