FIG. 4.

(A) ATP and prodigiosin during low-density growth in inositol complex broth. S. marcescens Nima pregrown for 1 day on an inositol complex medium slant was washed into inositol complex broth to an initial OD₇₅₀ of 0.15. Growth was continued with aeration at 26°C. Samples were removed at 0.25-h intervals for assay of cell, prodigiosin, and ATP concentrations. Asterisks denote ATP minima preceding ATP synthesis. (B) ATP per cell and prodigiosin per cell during low-density growth in inositol complex broth. Data for ATP per cell and prodigiosin per cell from the experiment in panel A are presented.