Abstract

Heat-injury altered the glucose transport system of Salmonella typhimurium . In the absence of an energy source the rate of methyl-α-D-glucopyranoside (α-MG) accumulation was less for heat-injured cells than for normal cells. The decreased level of α-MG accumulation was accounted for by a lower rate of endogenous metabolism in the injured cells. In the presence of an exogenous energy source (succinate), the rate of α-MG transport and the level of α-MG accumulation was much greater for injured cells in comparison to normal cells. The kinetics of α-MG accumulation differed between Trypticase Soy Broth and citrate grown cells.

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