[ATP concentration in the cells of the hydrogen bacterium Hydrogenomonas eutropha]

The maximum content of ATP in the cells of the hydrogen bacterium Hydrogenomonas eutrophia Z-1 was found, with the aid of luciferase technique, during the exponential phase of growth. The content of ATP decreases from the middle of the proportional phase. Inhibition of the enzymes of the first stages of anabolism by high concentrations of ATP was found in vitro but not in vivo. Compartmentalization of the ATP pool is presumed to take place in the cells of Hydrogenomonas eutropha.