SUMMARY: Addition of competence factor extracts to trigger competence in a culture of induced an increase in the intracellular pH and the Na content of the bacteria without any change in the K pool or in the membrane potential. These ionic shifts were concomitant with a stimulation of glycolysis that resulted in an enhanced ATP pool. Thus, in transforming conditions, at extracellular pH 7.8, competent bacteria presented a particularly high energetic state resulting from an increase in ApH and in the ATP pool, associated with an enhanced Na content. These features are discussed in the context of homeostasis regulation in response to an environmental stimulus.


Article metrics loading...

Loading full text...

Full text loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error