On-line and off-line measurements as a function of time of strain M145 grown on (A) phosphate and (B) L-glutamate depletion medium. Upper panels: on-line measurements of three individual biological replicas, lower panels: average and standard deviations of off-line analyses obtained for three biological replicas. A, ferm. #18a-c; B, ferm. #19a-c. Results in (A) include data identical to those published by us before .