FIG. 4.

In vivo ¹³C NMR spectra of an M. phosphovorus cell suspension in anaerobic conditions. [1-¹³C]glucose was added at time zero to a final concentration of 20 mM. Spectra were started at the times indicated. Each spectrum was acquired for 10.7 min. The region of the spectrum between 90 and 105 ppm is plotted with a threefold decrease in the vertical scale in order to fit the glucose peaks. Tre, trehalose; Glc, glucose; Ac_i, internal acetate; Ac_e, external acetate; #, glycogen C-1.