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Survival and density of colonizing bacteria in the C. elegans gut. (A) Survival of the C. elegans N2 strain and daf-2, daf-16, and phm-2 mutants when grown on lawns of E. coli OP50. (B) Load of E. coli OP50 within the gut of wild-type C. elegans N2 or in the daf-2, daf-16, and phm-2 mutants for the first 8 days after the L4 stage.
