Abstract
Summary
The influence of age of cell suspensions on viability and on the distribution of C14 between growth-labeled cells of Escherichia coli, Serratia marcescens or Pseudomonas aeruginosa, CO2, and the suspension medium was tested under aerobic and anaerobic starvation conditions at 30°C No direct relationship between the potential amounts of energy available on the basis of C14O2 production or loss of cellular-C14 and survival of the cells could be detected. Each species exhibited somewhat different behaviors as regards endogenous metabolism and decreases in cell-C14, in turbidity or in viable counts of the suspensions. Questions are raised regarding the value of endogenous respiration for survival of the cell.
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