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. 2005 May;71(5):2653–2662. doi: 10.1128/AEM.71.5.2653-2662.2005

FIG. 2.

FIG. 2.

Contribution of AI-2 production to the fitness of S. enterica serovar Thompson in chicken. (A) Plot of the ratio of the population size of the S. enterica serovar Thompson parental strain RM1987N to that of its LuxS− mutant strain in the intestine of 36 chickens 12 days after oral inoculation with a ratio of 1:1 of each strain. The total data from two replicate experiments are presented (experiment 1, ▪; experiment 2, ▴). (B) Change in the ratio of the population size of the S. enterica serovar Thompson parental strain to that of the LuxS− mutant over time in the droppings of chickens inoculated with a ratio of 1:1 of each strain. Values marked with the same letter were not significantly different, as determined with the Tukey-Kramer multiple-comparisons test (P < 0.05).