FIG. 2.
Effect of suppression of lon disruption on colonization of the spleens in mice by providing a functional lon in trans. A group of five mice was challenged orally (oral) or subcutaneously (S.C.) with S. enterica serovar Typhimurium strain CS2347 (lon+/pMW119+), CS2239, (lon:: Cmr/pMW119+), or CS2099 (lon:: Cmr/pTKY530+). On day 4 after subcutaneous inoculation with 2 × 105 of organisms or on day 6 after oral inoculation with 5 × 108 organisms, the numbers of bacteria recovered from spleens were determined. The error bars indicate the standard deviation of the means of these numbers.